Rad
CT Abdomen
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CT Abdomen
, Abdominal CT, CT Abdomen and Pelvis, Abdominopelvic CT
See Also
Abdominal Pain Evaluation
CT Abdomen in Appendicitis
Indications
Acute Abdominal Pain
(Oral water and IV Contrast unless otherwise noted)
Appendicitis
Diverticulitis
Bowel Obstruction
Acute Pancreatitis
Nephrolithiasis
(no contrast)
Abdominal Aortic Aneurysm
(IV contrast only)
Mesenteric Ischemia
Crohn's Disease
(CT enterography)
Abdominal Trauma
(IV contrast only)
Intraabdominal abscess (with
Oral Contrast
in addition to IV contrast)
Technique
Oral Contrast
Most Abdominal CT protocols require oral water only (no
Oral Contrast
)
Patients with increased abdominal fat require less contrast
Evaluation for
Appendicitis
or
Diverticulitis
does not require
Oral Contrast
Patient indications for
Oral Contrast
Lean patient (e.g. BMI <19-20 kg/m2)
Age <18 years old
Condition indications for
Oral Contrast
Bowel
Fistula
Bowel
perforation or peptic ulcer perforation
Intraabdominal Abscess
References
Anderson (2005) Am J Surg 190(3): 474-8 [PubMed]
Garcia (2013) Acad Emerg Med 20(8): 795-800 [PubMed]
Harrison (2013) West J Emerg Med 14(6): 595-7 [PubMed]
Adverse Effects
Children
Sold-tumor risk from CT radiation exposure in children
See
CT-associated Radiation Exposure
Girls: 1 new cancer per 300-390 CT Abdomen and Pelvis
Boys: 1 new cancer per 670-760 CT Abdomen and Pelvis
Miglioretti (2013) JAMA Pediatr 167(8): 700-7 [PubMed]
References
Ashoo, Orman and Hollander in Herbert (2015) EM:Rap 15(6): 17
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