Protocols
Fast protocol reminders for daily CT, MRI, ultrasound, Doppler and fluoroscopy work.
Acute neurological deficit, stroke pathway, hemorrhage exclusion.
Check onset time, anticoagulation history and previous imaging if available.
Foramen magnum to vertex; add CTA/CTP if requested by stroke pathway.
Non-contrast for initial brain CT; IV contrast only for CTA/CTV or specific indication.
Suspected pulmonary embolism, unexplained hypoxia or chest pain.
Check renal function, contrast allergy, pregnancy status when relevant and IV access quality.
Lung apices to adrenal glands.
IV iodinated contrast with bolus tracking in main pulmonary artery.
Abdominal pain, infection, malignancy follow-up, general abdomen assessment.
Fasting if possible; oral contrast only when locally indicated.
Diaphragm to symphysis pubis.
IV iodinated contrast unless contraindicated; typical portal venous delay 65-80 seconds.
HCC, hypervascular lesion, liver metastases characterization.
Fasting preferred; review prior liver imaging and tumor markers if available.
Liver-focused upper abdomen; include pelvis if oncologic staging requires it.
IV iodinated contrast with arterial bolus timing.
Renal colic, ureteric stone, hydronephrosis assessment.
No contrast; low-dose technique when appropriate.
Kidneys through bladder base.
No IV contrast.
Aneurysm, dissection, acute limb ischemia, peripheral arterial disease.
Large-bore IV access, renal function, timing according to target vessels.
Thoracic/abdominal aorta as requested; runoff from diaphragm or aortic bifurcation to feet.
IV iodinated contrast with bolus tracking in aorta.
Headache, seizure, tumor, demyelination, cognitive or neurological symptoms.
Screen for MRI safety, implants, renal function if contrast is planned.
Whole brain from foramen magnum to vertex.
Gadolinium for tumor, infection, inflammation, metastases or postoperative assessment.
Pituitary adenoma, hyperprolactinemia, sellar/suprasellar lesion.
MRI safety; renal function for contrast; endocrine context helpful.
Sellar region with whole-brain localizers.
Dynamic gadolinium protocol is preferred for microadenoma.
Back pain, radiculopathy, stenosis, disc disease, postoperative symptoms.
MRI safety; contrast for infection, tumor or postoperative scar assessment.
T12/L1 to sacrum; include conus.
Usually non-contrast; gadolinium for tumor, infection, postoperative or inflammatory disease.
Elevated PSA, lesion detection, local staging, active surveillance.
Antiperistaltic agent if used locally; avoid post-biopsy hemorrhage interval when possible.
Prostate and seminal vesicles; include pelvis for nodes if staging.
Gadolinium for multiparametric MRI unless biparametric protocol is used.
Biliary obstruction, stones, pancreatobiliary anatomy, PSC.
Fasting 4-6 hours when possible; antiperistaltic agent if used locally.
Liver hilum, biliary tree and pancreas.
Often non-contrast; gadolinium if mass, inflammation or liver lesion assessment is needed.
Abdominal pain, liver/gallbladder disease, renal or splenic assessment.
Fasting 6 hours preferred for gallbladder and upper abdominal assessment.
Liver, gallbladder, bile ducts, pancreas where visible, spleen, kidneys, aorta and free fluid.
No routine contrast.
Thyroid nodule, goiter, thyroiditis, follow-up.
No special preparation.
Both lobes, isthmus and cervical nodes.
No routine contrast.
Pelvic pain, abnormal bleeding, ovarian cyst/mass, fertility assessment.
Full bladder for transabdominal; consent and empty bladder for transvaginal when performed.
Uterus, endometrium, cervix, ovaries, adnexa and pouch of Douglas.
No routine contrast.
TIA/stroke workup, carotid bruit, stenosis follow-up.
No special preparation; optimize neck position.
CCA, bulb, ICA, ECA and vertebral arteries bilaterally.
No routine contrast.
Suspected DVT, limb swelling or pain.
No special preparation.
Common femoral to calf veins; include symptomatic area.
No routine contrast.
Hypertension, suspected renal artery stenosis, renal dysfunction.
Fasting preferred to reduce bowel gas.
Aorta, main renal arteries, intrarenal segmental/interlobar arteries and kidneys.
No routine contrast.
Dysphagia, reflux symptoms, stricture, motility assessment.
Fasting; check aspiration risk and contrast choice.
Pharynx to gastroesophageal junction; include stomach if requested.
Barium unless perforation suspected; water-soluble contrast if leak/perforation concern.
Interstitial lung disease, fibrosis, small airway disease or unexplained dyspnea.
Full inspiration coaching; add expiratory images for air trapping if requested.
Thoracic inlet to adrenal glands.
No IV contrast for routine HRCT.
Pulmonary nodule surveillance or incidental nodule follow-up.
Compare with all previous studies; low-dose technique where appropriate.
Lung apices to bases.
No IV contrast for routine nodule follow-up.
Neck mass, infection, lymphadenopathy, aerodigestive tract lesion.
Check renal function and contrast allergy; remove dental artifacts when possible.
Skull base to thoracic inlet.
IV iodinated contrast unless contraindicated.
Chronic sinusitis, pre-FESS planning, polyposis.
No contrast; remove facial metallic items when possible.
Frontal sinuses through maxillary alveolus.
No IV contrast for routine sinus CT.
Hearing loss, cholesteatoma, trauma, ossicular or mastoid disease.
No contrast for routine bony assessment.
Bilateral temporal bones.
No IV contrast unless soft tissue complication is suspected.
Hematuria, urothelial tumor, collecting system assessment.
Hydration; check renal function and contrast allergy.
Kidneys through bladder.
IV iodinated contrast with delayed excretory imaging.
Adrenal incidentaloma or adrenal lesion characterization.
Review non-contrast HU and prior imaging.
Upper abdomen/adrenals.
IV iodinated contrast for washout when indicated.
Pancreatic mass, adenocarcinoma staging, pancreatitis complication.
Fasting preferred; review bilirubin/stent status if available.
Diaphragm to iliac crests; include pelvis for staging if needed.
IV iodinated contrast with pancreatic phase timing.
Crohn disease, small bowel inflammation, obscure GI symptoms.
Oral neutral contrast distension; fasting; antiperistaltic agent if used locally.
Diaphragm to symphysis pubis.
IV iodinated contrast plus oral neutral contrast.
Colorectal cancer screening or incomplete colonoscopy.
Bowel prep, fecal tagging and colonic insufflation.
Diaphragm to pelvis in supine and prone/decubitus positions.
No IV contrast for screening unless clinically indicated.
Major trauma, polytrauma, high-energy mechanism.
Trauma team coordination; IV access; immobilization and monitoring.
Head, cervical spine, chest, abdomen and pelvis; extremities as indicated.
IV iodinated contrast for torso trauma unless contraindicated.
Stable chest pain, coronary artery anomaly, CAD assessment.
Heart rate control, nitrates if appropriate, renal function and contrast allergy check.
Carina to cardiac base.
IV iodinated contrast with coronary timing.
Seizure, focal epilepsy, pre-surgical evaluation.
MRI safety; review EEG/semiology if available.
Whole brain with high-resolution temporal lobe imaging.
Usually non-contrast unless tumor/inflammation is suspected.
Multiple sclerosis, optic neuritis, demyelinating disease follow-up.
MRI safety; use comparable protocol to prior studies.
Whole brain; add spine/orbits if clinically indicated.
Gadolinium for active plaque assessment when requested.
Optic neuritis, orbital mass, thyroid eye disease, visual symptoms.
MRI safety; renal function for contrast.
Orbits and optic pathways; include brain screening sequences.
Gadolinium commonly used for optic neuritis, mass or inflammation.
Sensorineural hearing loss, tinnitus, vestibular schwannoma.
MRI safety; contrast unless high-resolution non-contrast screening protocol is used.
CPA cisterns, IACs and inner ears.
Gadolinium for schwannoma/inflammatory assessment.
Neck pain, myelopathy, radiculopathy, trauma follow-up.
MRI safety; contrast for tumor, infection or postoperative assessment.
Skull base to upper thoracic spine.
Usually non-contrast unless infection, tumor or postoperative indication.
Rotator cuff tear, instability, labral or impingement symptoms.
MRI safety; arthrogram if labral detail is required.
Shoulder joint including AC joint and proximal humerus.
Non-contrast routine; MR arthrogram for labral/instability workup.
Meniscal tear, ligament injury, cartilage or internal derangement.
MRI safety; position knee coil comfortably to reduce motion.
Distal femur through proximal tibia/fibula.
No routine IV contrast.
Tendon injury, ligament tear, osteochondral lesion, stress fracture.
MRI safety; localize pain site.
Ankle or foot region of interest with joint-centered planes.
Usually non-contrast; gadolinium for infection, inflammatory disease or mass.
Endometriosis, uterine/cervical mass, adnexal lesion, pelvic pain.
Antiperistaltic agent if used; bladder moderately filled; vaginal/rectal gel per protocol if endometriosis.
Pelvis from iliac crests to perineum.
Gadolinium for tumor characterization/staging; not always needed for endometriosis mapping.
Primary rectal cancer staging or restaging after neoadjuvant therapy.
Antiperistaltic agent if used; small rectal gel only per local protocol.
Rectum and mesorectum with pelvis overview.
Not always required for primary staging; may be used in restaging/local protocol.
Hydronephrosis, renal colic follow-up, hematuria, renal size.
Hydration/full bladder if bladder assessment required.
Both kidneys, bladder and post-void residual when requested.
No routine contrast.
Scrotal pain, swelling, torsion, epididymo-orchitis, mass.
No special preparation; urgent scan for torsion symptoms.
Both testes, epididymides and scrotal soft tissues.
No routine contrast.
Palpable lump, focal pain, mammographic correlate, young/lactating patient.
Correlate with mammography and clinical site; document clock-face location.
Targeted area plus axilla when indicated.
No routine contrast.
Palpable lump, hernia, collection, foreign body.
Mark patient-reported site; compare contralateral side when useful.
Targeted symptomatic region.
No routine contrast.
Arm swelling, catheter-related thrombosis, suspected upper limb DVT.
No special preparation; note line/catheter site.
Internal jugular, subclavian, axillary, brachial, basilic and cephalic veins as indicated.
No routine contrast.
Claudication, critical limb ischemia, stenosis/occlusion follow-up.
Rest patient; document symptoms and prior intervention.
Common femoral to pedal arteries bilaterally or target limb.
No routine contrast.
Cirrhosis, portal hypertension, portal vein thrombosis, TIPS follow-up.
Fasting preferred to reduce bowel gas.
Main/right/left portal veins, hepatic veins, hepatic artery, splenic vein and TIPS if present.
No routine contrast.
Vomiting, malrotation, obstruction, postoperative anatomy.
Fasting; choose contrast type according to aspiration/leak risk.
Esophagus, stomach and duodenum to DJ flexure.
Barium unless leak/perforation concern; water-soluble contrast if needed.
Vesicoureteric reflux, recurrent UTI, posterior urethral valves.
Aseptic catheterization; explain voiding phase importance.
Bladder, urethra during voiding and renal fossae for reflux.
Dilute water-soluble iodinated contrast via catheter.
Head injury, loss of consciousness or suspected skull fracture.
Check renal function, contrast allergy and IV access when contrast is required.
Vertex through skull base.
Use contrast/radiotracer according to the indication and local safety policy.
Stroke, TIA, dissection or aneurysm assessment.
Check renal function, contrast allergy and IV access when contrast is required.
Aortic arch through vertex.
Use contrast/radiotracer according to the indication and local safety policy.
Suspected dural venous sinus thrombosis.
Check renal function, contrast allergy and IV access when contrast is required.
Skull base to vertex in venous phase.
Use contrast/radiotracer according to the indication and local safety policy.
Acute stroke triage and penumbra estimation.
Check renal function, contrast allergy and IV access when contrast is required.
Selected brain slab or whole-brain perfusion coverage.
Use contrast/radiotracer according to the indication and local safety policy.
Facial trauma or complex fracture assessment.
Check renal function, contrast allergy and IV access when contrast is required.
Frontal sinus through mandible.
Use contrast/radiotracer according to the indication and local safety policy.
Mandibular trauma, dental infection or lesion.
Check renal function, contrast allergy and IV access when contrast is required.
TM joints through mandibular symphysis.
Use contrast/radiotracer according to the indication and local safety policy.
Orbital cellulitis, abscess, mass or trauma complication.
Check renal function, contrast allergy and IV access when contrast is required.
Orbits through cavernous sinuses.
Use contrast/radiotracer according to the indication and local safety policy.
Mediastinal mass, infection, malignancy or chest symptoms.
Check renal function, contrast allergy and IV access when contrast is required.
Thoracic inlet to adrenal glands.
Use contrast/radiotracer according to the indication and local safety policy.
Acute chest/back pain or suspected aortic syndrome.
Check renal function, contrast allergy and IV access when contrast is required.
Thoracic inlet through femoral arteries when indicated.
Use contrast/radiotracer according to the indication and local safety policy.
Cardiovascular risk assessment and coronary calcification.
Check renal function, contrast allergy and IV access when contrast is required.
Carina through cardiac base.
Use contrast/radiotracer according to the indication and local safety policy.
Pre-ablation pulmonary venous anatomy.
Check renal function, contrast allergy and IV access when contrast is required.
Left atrium and pulmonary veins.
Use contrast/radiotracer according to the indication and local safety policy.
Cancer staging or treatment response.
Check renal function, contrast allergy and IV access when contrast is required.
Thoracic inlet to symphysis pubis.
Use contrast/radiotracer according to the indication and local safety policy.
Suspected esophageal leak or postoperative complication.
Check renal function, contrast allergy and IV access when contrast is required.
Neck/chest/upper abdomen depending on surgical site.
Use contrast/radiotracer according to the indication and local safety policy.
Acute abdominal pain with suspected bowel ischemia.
Check renal function, contrast allergy and IV access when contrast is required.
Diaphragm to pelvis.
Use contrast/radiotracer according to the indication and local safety policy.
Overt GI bleeding localization.
Check renal function, contrast allergy and IV access when contrast is required.
Diaphragm to symphysis pubis.
Use contrast/radiotracer according to the indication and local safety policy.
Renal lesion characterization and staging.
Check renal function, contrast allergy and IV access when contrast is required.
Kidneys through iliac crests or full abdomen/pelvis if staging.
Use contrast/radiotracer according to the indication and local safety policy.
Bladder rupture or postoperative bladder leak.
Check renal function, contrast allergy and IV access when contrast is required.
Pelvis with retrograde bladder distension.
Use contrast/radiotracer according to the indication and local safety policy.
Pelvic fracture, sacral injury or hip trauma.
Check renal function, contrast allergy and IV access when contrast is required.
Iliac crests through proximal femora.
Use contrast/radiotracer according to the indication and local safety policy.
Acute spine trauma and fracture assessment.
Check renal function, contrast allergy and IV access when contrast is required.
Region of interest with sagittal/coronal reformats.
Use contrast/radiotracer according to the indication and local safety policy.
Radiculopathy or spinal canal evaluation when MRI limited.
Check renal function, contrast allergy and IV access when contrast is required.
Target spinal region after intrathecal contrast.
Use contrast/radiotracer according to the indication and local safety policy.
Known or suspected brain tumor assessment.
MRI safety screening; renal function if gadolinium is planned.
Whole brain with lesion-centered post-contrast imaging.
Use contrast/radiotracer according to the indication and local safety policy.
Acute or subacute ischemia assessment.
MRI safety screening; renal function if gadolinium is planned.
Whole brain with vascular sequences when needed.
Use contrast/radiotracer according to the indication and local safety policy.
Cognitive decline or neurodegenerative assessment.
MRI safety screening; renal function if gadolinium is planned.
Whole brain with volumetric T1.
Use contrast/radiotracer according to the indication and local safety policy.
Suspected normal pressure hydrocephalus or CSF flow disorder.
MRI safety screening; renal function if gadolinium is planned.
Brain and aqueduct region.
Use contrast/radiotracer according to the indication and local safety policy.
Cranial nerve V compression or CPA lesion.
MRI safety screening; renal function if gadolinium is planned.
Posterior fossa and trigeminal cisternal segments.
Use contrast/radiotracer according to the indication and local safety policy.
TMJ pain, locking or disc dysfunction.
MRI safety screening; renal function if gadolinium is planned.
Bilateral TMJs open and closed mouth.
Use contrast/radiotracer according to the indication and local safety policy.
Plexopathy, trauma, tumor or radiation injury.
MRI safety screening; renal function if gadolinium is planned.
Neck base through axilla.
Use contrast/radiotracer according to the indication and local safety policy.
Myelopathy, pain, tumor, infection or trauma.
MRI safety screening; renal function if gadolinium is planned.
Cervicothoracic junction through conus as needed.
Use contrast/radiotracer according to the indication and local safety policy.
Inflammatory back pain or sacroiliitis.
MRI safety screening; renal function if gadolinium is planned.
Sacroiliac joints and sacrum.
Use contrast/radiotracer according to the indication and local safety policy.
Hip pain, osteonecrosis, labral or marrow pathology.
MRI safety screening; renal function if gadolinium is planned.
Pelvis overview and affected hip small FOV.
Use contrast/radiotracer according to the indication and local safety policy.
Ligament injury, TFCC, occult fracture or arthritis.
MRI safety screening; renal function if gadolinium is planned.
Distal forearm through metacarpal bases.
Use contrast/radiotracer according to the indication and local safety policy.
Ligament/tendon injury, neuropathy or loose body.
MRI safety screening; renal function if gadolinium is planned.
Distal humerus through proximal forearm.
Use contrast/radiotracer according to the indication and local safety policy.
Mass, tendon injury, arthritis or infection.
MRI safety screening; renal function if gadolinium is planned.
Target hand/finger with small FOV.
Use contrast/radiotracer according to the indication and local safety policy.
Focal liver lesion characterization or metastasis detection.
MRI safety screening; renal function if gadolinium is planned.
Whole liver and upper abdomen.
Use contrast/radiotracer according to the indication and local safety policy.
Pancreatic lesion, cyst, pancreatitis or ductal abnormality.
MRI safety screening; renal function if gadolinium is planned.
Pancreas and biliary tree.
Use contrast/radiotracer according to the indication and local safety policy.
Crohn disease and small bowel inflammation.
MRI safety screening; renal function if gadolinium is planned.
Abdomen and pelvis after oral contrast distension.
Use contrast/radiotracer according to the indication and local safety policy.
Perianal fistula or abscess mapping.
MRI safety screening; renal function if gadolinium is planned.
Anal canal and perineum.
Use contrast/radiotracer according to the indication and local safety policy.
Local staging of bladder tumor.
MRI safety screening; renal function if gadolinium is planned.
Pelvis centered on bladder.
Use contrast/radiotracer according to the indication and local safety policy.
Indeterminate scrotal mass or problem-solving.
MRI safety screening; renal function if gadolinium is planned.
Scrotum and inguinal canals.
Use contrast/radiotracer according to the indication and local safety policy.
Right lower quadrant pain and suspected appendicitis.
Optimize patient position and document technical limitation if present.
Right lower quadrant and point of maximal tenderness.
No IV contrast unless specifically indicated by the protocol.
Infant vomiting and suspected pyloric stenosis.
Optimize patient position and document technical limitation if present.
Epigastrium/pylorus.
No IV contrast unless specifically indicated by the protocol.
Intermittent abdominal pain or currant jelly stool.
Optimize patient position and document technical limitation if present.
Whole abdomen with focus on colon course.
No IV contrast unless specifically indicated by the protocol.
Prematurity, hemorrhage screen or hydrocephalus.
Optimize patient position and document technical limitation if present.
Coronal/sagittal views through fontanelle.
No IV contrast unless specifically indicated by the protocol.
Developmental dysplasia of the hip.
Optimize patient position and document technical limitation if present.
Both hips in coronal and transverse planes.
No IV contrast unless specifically indicated by the protocol.
Hyperparathyroidism localization.
Optimize patient position and document technical limitation if present.
Thyroid bed and central/lateral neck.
No IV contrast unless specifically indicated by the protocol.
Sialadenitis, stone, mass or Sjogren pattern.
Optimize patient position and document technical limitation if present.
Parotid/submandibular glands and ducts.
No IV contrast unless specifically indicated by the protocol.
Cirrhosis, portal hypertension or transplant surveillance.
Optimize patient position and document technical limitation if present.
Liver vessels and spleen/ascites survey.
No IV contrast unless specifically indicated by the protocol.
RUQ pain or suspected cholecystitis.
Optimize patient position and document technical limitation if present.
Gallbladder, CBD and liver hilum.
No IV contrast unless specifically indicated by the protocol.
AAA screening or aneurysm follow-up.
Optimize patient position and document technical limitation if present.
Proximal to distal abdominal aorta and iliac bifurcation.
No IV contrast unless specifically indicated by the protocol.
Pain, bleeding or viability/dating.
Optimize patient position and document technical limitation if present.
Uterus, adnexa and cul-de-sac.
No IV contrast unless specifically indicated by the protocol.
Routine second trimester anatomy survey.
Optimize patient position and document technical limitation if present.
Fetal anatomy, placenta, cervix and fluid.
No IV contrast unless specifically indicated by the protocol.
Low placenta, prior cesarean or accreta risk.
Optimize patient position and document technical limitation if present.
Placenta-myometrium interface and cervix.
No IV contrast unless specifically indicated by the protocol.
Preeclampsia risk or placental insufficiency assessment.
Optimize patient position and document technical limitation if present.
Bilateral uterine arteries near crossover.
No IV contrast unless specifically indicated by the protocol.
Fetal growth restriction or placental insufficiency.
Optimize patient position and document technical limitation if present.
Free loop umbilical cord.
No IV contrast unless specifically indicated by the protocol.
Fetal anemia or brain-sparing assessment.
Optimize patient position and document technical limitation if present.
Proximal MCA near circle of Willis.
No IV contrast unless specifically indicated by the protocol.
High-risk fetal surveillance.
Optimize patient position and document technical limitation if present.
Ductus venosus at inlet.
No IV contrast unless specifically indicated by the protocol.
Erectile dysfunction vascular assessment.
Optimize patient position and document technical limitation if present.
Cavernosal arteries after pharmacologic stimulation.
No IV contrast unless specifically indicated by the protocol.
AVF maturation, stenosis or access dysfunction.
Optimize patient position and document technical limitation if present.
Inflow artery, anastomosis, outflow vein and central waveform.
No IV contrast unless specifically indicated by the protocol.
Vasospasm, sickle cell screening or intracranial flow.
Optimize patient position and document technical limitation if present.
Temporal/suboccipital/orbital windows.
No IV contrast unless specifically indicated by the protocol.
Chronic mesenteric ischemia assessment.
Optimize patient position and document technical limitation if present.
Celiac and SMA fasting velocities.
No IV contrast unless specifically indicated by the protocol.
Infertility and tubal patency assessment.
Check indication, consent/safety requirements and relevant prior imaging.
Uterine cavity and fallopian tubes.
No IV contrast unless specifically indicated by the protocol.
Urinary diversion assessment or suspected obstruction/leak.
Check indication, consent/safety requirements and relevant prior imaging.
Stoma, conduit and reflux into ureters.
No IV contrast unless specifically indicated by the protocol.
Urethral stricture or trauma.
Check indication, consent/safety requirements and relevant prior imaging.
Anterior urethra with oblique positioning.
No IV contrast unless specifically indicated by the protocol.
Pelvic floor dysfunction, prolapse or obstructed defecation.
Check indication, consent/safety requirements and relevant prior imaging.
Pelvis during rest, squeeze and evacuation.
No IV contrast unless specifically indicated by the protocol.
Chest symptoms, infection, heart failure or preoperative assessment.
Check indication, consent/safety requirements and relevant prior imaging.
Lung apices through costophrenic angles.
No IV contrast unless specifically indicated by the protocol.
Bowel obstruction, constipation or radiopaque stone/device check.
Check indication, consent/safety requirements and relevant prior imaging.
Diaphragm to pelvis when obstruction suspected.
No IV contrast unless specifically indicated by the protocol.
Neck pain, alignment or degenerative assessment.
Check indication, consent/safety requirements and relevant prior imaging.
Skull base to T1 with open-mouth view if needed.
No IV contrast unless specifically indicated by the protocol.
Spinal curvature assessment and follow-up.
Check indication, consent/safety requirements and relevant prior imaging.
Standing full spine PA/AP and lateral as needed.
No IV contrast unless specifically indicated by the protocol.
Growth assessment and endocrine evaluation.
Check indication, consent/safety requirements and relevant prior imaging.
Left hand and wrist.
No IV contrast unless specifically indicated by the protocol.
Routine breast cancer screening.
Correlate with symptoms, prior mammograms and breast density.
Bilateral CC and MLO views.
No IV contrast unless specifically indicated by the protocol.
Symptom, callback or known imaging finding.
Correlate with symptoms, prior mammograms and breast density.
Targeted views based on finding.
No IV contrast unless specifically indicated by the protocol.
Architectural distortion, asymmetry or mass clarification.
Correlate with symptoms, prior mammograms and breast density.
Focused DBT views and spot compression.
No IV contrast unless specifically indicated by the protocol.
Suspicious calcifications or mammographic-only lesion.
Correlate with symptoms, prior mammograms and breast density.
Targeted lesion with stereotactic localization.
No IV contrast unless specifically indicated by the protocol.
Cancer staging, restaging or treatment response.
Confirm radiotracer, timing, glucose/medication requirements and prior imaging.
Skull base to mid-thigh or vertex-to-toes per tumor.
Radiotracer-based examination; correlate uptake with CT or anatomic imaging.
Skeletal metastasis, fracture or metabolic bone disease.
Confirm radiotracer, timing, glucose/medication requirements and prior imaging.
Whole body skeletal imaging.
Radiotracer-based examination; correlate uptake with CT or anatomic imaging.
Acute cholecystitis or biliary dyskinesia.
Confirm radiotracer, timing, glucose/medication requirements and prior imaging.
Liver/biliary dynamic imaging.
Radiotracer-based examination; correlate uptake with CT or anatomic imaging.
Obstruction, differential renal function or transplant drainage.
Confirm radiotracer, timing, glucose/medication requirements and prior imaging.
Kidneys/bladder dynamic acquisition.
Radiotracer-based examination; correlate uptake with CT or anatomic imaging.
Drainable collection or infected fluid.
Check consent, coagulation profile, medications, allergy status and safe access.
Target collection and safe access path.
Use local anesthetic and image guidance; contrast only when required for confirmation.
Pulmonary nodule or mass tissue diagnosis.
Check consent, coagulation profile, medications, allergy status and safe access.
Target lesion with safe needle path.
Use local anesthetic and image guidance; contrast only when required for confirmation.
Thyroid nodule cytology.
Check consent, coagulation profile, medications, allergy status and safe access.
Target nodule and cervical nodes if needed.
Use local anesthetic and image guidance; contrast only when required for confirmation.
Focal or non-focal liver tissue diagnosis.
Check consent, coagulation profile, medications, allergy status and safe access.
Target lesion or safe right hepatic lobe path.
Use local anesthetic and image guidance; contrast only when required for confirmation.
Brain tumor perfusion, recurrence vs treatment effect.
Check renal function, contrast allergy and IV access when contrast is required.
Whole lesion and surrounding brain.
Use contrast/radiotracer according to protocol, indication and safety policy.
Sellar lesion when MRI unavailable or contraindicated.
Check renal function, contrast allergy and IV access when contrast is required.
Sella, suprasellar cistern and cavernous sinuses.
Use contrast/radiotracer according to protocol, indication and safety policy.
Preoperative sinus mapping for FESS/navigation.
Check renal function, contrast allergy and IV access when contrast is required.
Frontal sinuses through maxillary alveolus.
Use contrast/radiotracer according to protocol, indication and safety policy.
Dental implant planning, impacted tooth or mandibular lesion.
Check renal function, contrast allergy and IV access when contrast is required.
Maxilla/mandible region of interest.
Use contrast/radiotracer according to protocol, indication and safety policy.
Vocal cord dysfunction, laryngeal mass or airway assessment.
Check renal function, contrast allergy and IV access when contrast is required.
Skull base to thoracic inlet.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pneumonia, fever or immunocompromised chest assessment.
Check renal function, contrast allergy and IV access when contrast is required.
Thoracic inlet to adrenal glands.
Use contrast/radiotracer according to protocol, indication and safety policy.
Tracheobronchomalacia, stenosis or airway lesion.
Check renal function, contrast allergy and IV access when contrast is required.
Larynx to main bronchi or full chest.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pulmonary hypertension etiology and vascular/lung clues.
Check renal function, contrast allergy and IV access when contrast is required.
Thoracic inlet to adrenal glands.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pleural tumor, empyema or complex effusion.
Check renal function, contrast allergy and IV access when contrast is required.
Thoracic inlet to adrenal glands.
Use contrast/radiotracer according to protocol, indication and safety policy.
Diaphragmatic hernia, eventration or rupture.
Check renal function, contrast allergy and IV access when contrast is required.
Lower chest through upper abdomen.
Use contrast/radiotracer according to protocol, indication and safety policy.
Right iliac fossa pain and suspected appendicitis.
Check renal function, contrast allergy and IV access when contrast is required.
Diaphragm to symphysis or focused abdomen/pelvis.
Use contrast/radiotracer according to protocol, indication and safety policy.
Left lower quadrant pain or suspected diverticular complication.
Check renal function, contrast allergy and IV access when contrast is required.
Abdomen and pelvis.
Use contrast/radiotracer according to protocol, indication and safety policy.
Vomiting, distension or suspected bowel obstruction.
Check renal function, contrast allergy and IV access when contrast is required.
Diaphragm to pelvis.
Use contrast/radiotracer according to protocol, indication and safety policy.
Abdominal wall/groin hernia assessment.
Check renal function, contrast allergy and IV access when contrast is required.
Target abdominal wall/pelvis with Valsalva if possible.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pelvic floor prolapse or obstructed defecation when CT used.
Check renal function, contrast allergy and IV access when contrast is required.
Pelvis during rest/strain/evacuation if protocol available.
Use contrast/radiotracer according to protocol, indication and safety policy.
Postoperative pain, fever, leak or collection.
Check renal function, contrast allergy and IV access when contrast is required.
Relevant surgical bed and abdomen/pelvis.
Use contrast/radiotracer according to protocol, indication and safety policy.
Dialysate leak or catheter complication.
Check renal function, contrast allergy and IV access when contrast is required.
Abdomen/pelvis after intraperitoneal contrast per protocol.
Use contrast/radiotracer according to protocol, indication and safety policy.
Initial staging or response assessment in lymphoma.
Check renal function, contrast allergy and IV access when contrast is required.
Neck/chest/abdomen/pelvis as indicated.
Use contrast/radiotracer according to protocol, indication and safety policy.
Whole-body bone disease assessment in myeloma.
Check renal function, contrast allergy and IV access when contrast is required.
Skull to knees or whole body depending protocol.
Use contrast/radiotracer according to protocol, indication and safety policy.
Bone tumor mineralization/cortex assessment.
Check renal function, contrast allergy and IV access when contrast is required.
Entire lesion and adjacent joints.
Use contrast/radiotracer according to protocol, indication and safety policy.
Rotator cuff/labral/cartilage assessment when MRI limited.
Check renal function, contrast allergy and IV access when contrast is required.
Shoulder after intra-articular contrast.
Use contrast/radiotracer according to protocol, indication and safety policy.
Labral/cartilage assessment when MRI arthrogram unavailable.
Check renal function, contrast allergy and IV access when contrast is required.
Hip after intra-articular contrast.
Use contrast/radiotracer according to protocol, indication and safety policy.
Intrinsic ligament/TFCC evaluation.
Check renal function, contrast allergy and IV access when contrast is required.
Wrist after intra-articular contrast.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pulmonary arteriovenous malformation mapping.
Check renal function, contrast allergy and IV access when contrast is required.
Chest with arterial/venous vascular detail.
Use contrast/radiotracer according to protocol, indication and safety policy.
Trauma, ischemia or vascular mapping of upper limb.
Check renal function, contrast allergy and IV access when contrast is required.
Aortic arch/subclavian through hand as needed.
Use contrast/radiotracer according to protocol, indication and safety policy.
Vascular injury after extremity trauma.
Check renal function, contrast allergy and IV access when contrast is required.
Above injury through distal runoff.
Use contrast/radiotracer according to protocol, indication and safety policy.
Iliocaval or lower limb venous thrombosis mapping.
Check renal function, contrast allergy and IV access when contrast is required.
IVC through lower limbs as requested.
Use contrast/radiotracer according to protocol, indication and safety policy.
Tumor grading, recurrence or metabolic lesion assessment.
MRI safety screening; renal function if gadolinium is planned.
Lesion and whole brain.
Use contrast/radiotracer according to protocol, indication and safety policy.
Cranial neuropathy, perineural spread or skull base lesion.
MRI safety screening; renal function if gadolinium is planned.
Skull base and affected nerve pathway.
Use contrast/radiotracer according to protocol, indication and safety policy.
Facial mass, mandibular lesion or odontogenic infection.
MRI safety screening; renal function if gadolinium is planned.
Face/mandible region of interest.
Use contrast/radiotracer according to protocol, indication and safety policy.
Neck mass, nodes, salivary lesion or infection.
MRI safety screening; renal function if gadolinium is planned.
Skull base to thoracic inlet.
Use contrast/radiotracer according to protocol, indication and safety policy.
Nasopharyngeal carcinoma staging or surveillance.
MRI safety screening; renal function if gadolinium is planned.
Skull base to lower neck.
Use contrast/radiotracer according to protocol, indication and safety policy.
Laryngeal/hypopharyngeal cancer local staging.
MRI safety screening; renal function if gadolinium is planned.
Skull base/larynx to thoracic inlet.
Use contrast/radiotracer according to protocol, indication and safety policy.
Cardiomyopathy, myocarditis or ventricular function.
MRI safety screening; renal function if gadolinium is planned.
Heart with short-axis stack.
Use contrast/radiotracer according to protocol, indication and safety policy.
Ischemia evaluation and perfusion defect assessment.
MRI safety screening; renal function if gadolinium is planned.
Heart during stress/rest perfusion.
Use contrast/radiotracer according to protocol, indication and safety policy.
Aneurysm, dissection, vasculitis or congenital aortic disease.
MRI safety screening; renal function if gadolinium is planned.
Thoracic/abdominal aorta as requested.
Use contrast/radiotracer according to protocol, indication and safety policy.
Chest wall mass, invasion or infection.
MRI safety screening; renal function if gadolinium is planned.
Chest wall region and adjacent thorax.
Use contrast/radiotracer according to protocol, indication and safety policy.
Implant rupture or complication assessment.
MRI safety screening; renal function if gadolinium is planned.
Both breasts/implants.
Use contrast/radiotracer according to protocol, indication and safety policy.
Extent of disease and multifocal/multicentric assessment.
MRI safety screening; renal function if gadolinium is planned.
Both breasts and axillae.
Use contrast/radiotracer according to protocol, indication and safety policy.
Quantitative liver iron and fat assessment.
MRI safety screening; renal function if gadolinium is planned.
Whole liver with quantitative sequences.
Use contrast/radiotracer according to protocol, indication and safety policy.
Indeterminate renal lesion or RCC staging.
MRI safety screening; renal function if gadolinium is planned.
Kidneys and renal vessels.
Use contrast/radiotracer according to protocol, indication and safety policy.
Adrenal adenoma characterization.
MRI safety screening; renal function if gadolinium is planned.
Adrenal glands with in/opposed phase imaging.
Use contrast/radiotracer according to protocol, indication and safety policy.
Fibroid mapping before treatment.
MRI safety screening; renal function if gadolinium is planned.
Pelvis/uterus.
Use contrast/radiotracer according to protocol, indication and safety policy.
Local staging of cervical carcinoma.
MRI safety screening; renal function if gadolinium is planned.
Pelvis centered on cervix.
Use contrast/radiotracer according to protocol, indication and safety policy.
Myometrial invasion and nodal assessment.
MRI safety screening; renal function if gadolinium is planned.
Pelvis centered on uterus.
Use contrast/radiotracer according to protocol, indication and safety policy.
Placenta accreta risk assessment.
MRI safety screening; renal function if gadolinium is planned.
Gravid uterus and placenta.
Use contrast/radiotracer according to protocol, indication and safety policy.
Suspected fetal CNS anomaly.
MRI safety screening; renal function if gadolinium is planned.
Fetal brain in multiple planes.
Use contrast/radiotracer according to protocol, indication and safety policy.
Thoracic/abdominal fetal anomaly problem-solving.
MRI safety screening; renal function if gadolinium is planned.
Fetal body region of interest.
Use contrast/radiotracer according to protocol, indication and safety policy.
Diabetic foot infection or osteomyelitis.
MRI safety screening; renal function if gadolinium is planned.
Foot/ankle region of ulcer.
Use contrast/radiotracer according to protocol, indication and safety policy.
Entrapment, neuropathy or nerve tumor.
MRI safety screening; renal function if gadolinium is planned.
Nerve course with high-resolution sequences.
Use contrast/radiotracer according to protocol, indication and safety policy.
Soft tissue sarcoma local staging.
MRI safety screening; renal function if gadolinium is planned.
Whole tumor compartment and adjacent joints.
Use contrast/radiotracer according to protocol, indication and safety policy.
CEUS characterization of focal liver lesion.
Optimize patient position and document technical limitations.
Target lesion and liver background.
Use contrast/radiotracer according to protocol, indication and safety policy.
Fibrosis assessment in chronic liver disease.
Optimize patient position and document technical limitations.
Right hepatic lobe shear wave/transient measurements.
Use contrast/radiotracer according to protocol, indication and safety policy.
Tendon tear, tendinopathy or dynamic impingement.
Optimize patient position and document technical limitations.
Target tendon and comparison side.
Use contrast/radiotracer according to protocol, indication and safety policy.
Carpal tunnel, ulnar neuropathy or focal neuropathy.
Optimize patient position and document technical limitations.
Nerve course and entrapment site.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pre-procedure assessment for joint/bursa/tendon sheath injection.
Optimize patient position and document technical limitations.
Target structure and safe access route.
Use contrast/radiotracer according to protocol, indication and safety policy.
Infant sacral dimple or dysraphism screen.
Optimize patient position and document technical limitations.
Lumbosacral spine through posterior elements.
Use contrast/radiotracer according to protocol, indication and safety policy.
Effusion, pneumothorax or bedside lung assessment.
Optimize patient position and document technical limitations.
Chest zones and pleural spaces.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pelvic venous obstruction or DVT extension.
Optimize patient position and document technical limitations.
IVC and iliac veins.
Use contrast/radiotracer according to protocol, indication and safety policy.
Liver transplant vascular surveillance.
Optimize patient position and document technical limitations.
Hepatic artery, portal vein, hepatic veins and collections.
Use contrast/radiotracer according to protocol, indication and safety policy.
Transplant dysfunction or vascular complication.
Optimize patient position and document technical limitations.
Transplant kidney and anastomoses.
Use contrast/radiotracer according to protocol, indication and safety policy.
Acute scrotal pain and torsion assessment.
Optimize patient position and document technical limitations.
Both testes and spermatic cords.
Use contrast/radiotracer according to protocol, indication and safety policy.
Acute pelvic pain and torsion assessment.
Optimize patient position and document technical limitations.
Ovaries, adnexa and pelvis.
Use contrast/radiotracer according to protocol, indication and safety policy.
Problem-solving, staging or dense breast evaluation.
Check indication, patient safety requirements and relevant prior imaging.
Bilateral low/high energy views after contrast.
Use contrast/radiotracer according to protocol, indication and safety policy.
Preoperative wire/seed localization.
Check indication, patient safety requirements and relevant prior imaging.
Target lesion/clip with mammographic or US guidance.
Use contrast/radiotracer according to protocol, indication and safety policy.
Hyperthyroidism, thyroiditis vs Graves/toxic nodule.
Confirm radiotracer, timing, medication restrictions and prior imaging.
Thyroid uptake and scintigraphy.
Use contrast/radiotracer according to protocol, indication and safety policy.
Parathyroid adenoma localization.
Confirm radiotracer, timing, medication restrictions and prior imaging.
Neck and mediastinum with SPECT/CT when available.
Use contrast/radiotracer according to protocol, indication and safety policy.
Pulmonary embolism when CTPA unsuitable.
Confirm radiotracer, timing, medication restrictions and prior imaging.
Ventilation/perfusion lungs.
Use contrast/radiotracer according to protocol, indication and safety policy.
Suspected Meckel diverticulum bleeding.
Confirm radiotracer, timing, medication restrictions and prior imaging.
Abdomen/pelvis dynamic imaging.
Use contrast/radiotracer according to protocol, indication and safety policy.
Gastroparesis or rapid gastric emptying.
Confirm radiotracer, timing, medication restrictions and prior imaging.
Serial gastric activity after standard meal.
Use contrast/radiotracer according to protocol, indication and safety policy.
Obstructed infected collecting system or urinary diversion.
Confirm consent, coagulation status, medication holds and safe access route.
Target collecting system.
Use contrast/radiotracer according to protocol, indication and safety policy.
Obstructive jaundice or cholangitis drainage.
Confirm consent, coagulation status, medication holds and safe access route.
Dilated biliary tree and access path.
Use contrast/radiotracer according to protocol, indication and safety policy.
Liver/kidney/lung tumor ablation planning.
Confirm consent, coagulation status, medication holds and safe access route.
Tumor and safe access route.
Use contrast/radiotracer according to protocol, indication and safety policy.
Painful vertebral compression fracture treatment planning.
Confirm consent, coagulation status, medication holds and safe access route.
Target vertebral levels.
Use contrast/radiotracer according to protocol, indication and safety policy.