Computed Tomography

Multidetector technology (MDCT) is state-of-the-art in modern computed tomography (CT). The use of multiple detectors instead of one detector allows scanning with large anatomic coverage, higher speed, and greater image detail. The options for 2D and 3D image reconstructions, multiphasic imaging, and, more recently, semi-quantitative perfusion measurements and tissue characterization with dual energy are widening the diagnostic spectrum of this imaging modality. A vast number of clinical indications can be covered with this imaging modality, including hepatic and pancreatic inflammatory and neoplastic disease with multiphasic CT; small and large bowel disease with CTenterography and CTcolonography; and vascular disorders with CTangiography. Concerns of increased radiation exposure are addressed with low-dose imaging protocols. In summary, MDCT can be considered the diagnostic "working horse" and in many conditions the modality of choice in the assessment of acute and chronic diseases of the abdomen.