Tab. 3.

Indications for abdominal CT [ACR–SPR Practice Parameter for the performance of computed tomography (CT) of the abdomen and computed tomography (CT) of the pelvis; https://www.acr.org/-/media/ACR/Files/Practice-Parameters/ct-abd-pel.pdf]

Evaluation of abdominal, flank, or pelvic pain, including evaluation of suspected or known urinary calculi and appendicitis

Evaluation of abdominal or pelvic trauma

Evaluation of renal and adrenal masses and of urinary tract abnormalities with CT urography

Evaluation of known or suspected abdominal or pelvic masses or fluid collections, including gynecological masses

Evaluation of primary or metastatic malignancies, including lesion characterization (e.g. focal liver lesion), staging, and treatment monitoring

Surveillance following locoregional therapies in abdominal malignancies, including percutaneous ablation, intra-arterial therapies (transarterial chemoembolization, selective internal radiation therapy), and targeted image-guided radiation therapy

Assessment for recurrence of tumors following surgical resection

Detection of complications following abdominal and pelvic surgery, e.g. abscess, lymphocele, radiation change, and fistula/sinus tract formation

Evaluation of diffuse liver disease (e.g. cirrhosis, steatosis, iron deposition disease) and biliary system, including CT cholangiography)

Evaluation of abdominal or pelvic inflammatory processes, including inflammatory bowel disease, infectious bowel disease and its complications, without or with CT enterography

Assessment of abnormalities of abdominal or pelvic vascular structures; noninvasive angiography of the aorta and its branches and noninvasive venography

Clarification of findings from other imaging studies or laboratory abnormalities

Evaluation of known or suspected congenital abnormalities of abdominal or pelvic organs

Evaluation for bowel obstruction or Gl bleeding

Screening and diagnostic evaluation for colonic polyps and cancers with CT colonography

Guidance for interventional or therapeutic procedures within the abdomen or pelvis

Follow-up evaluation after interventional or therapeutic procedures within the abdomen or pelvis, including abscess drainage

Treatment planning for radiation and chemotherapy and evaluation of tumor response to treatment, including perfusion studies

Pre- and post-transplant assessment