OBJECTIVE. The cancer risks associated with patient exposure to radiation from medical
imaging have become a major topic of debate. The higher doses necessary for technologies …

Occult gastrointestinal bleeding typically refers to bleeding that is not apparent to the patient.
The potential for occult bleeding is emphasized by the finding that for melena to be …

Background Virtual colonoscopy is a new method of imaging the colon in which thin-section,
helical computed tomography (CT) is used to generate high-resolution, two-dimensional …

Background In 1997 approximately 131,000 Americans will be diagnosed with colorectal
cancer and about 55,000 will die from this disease. 1 Colorectal cancer is second only to …

A system, method, and article of manufacture for imaging tubular structures of the human
body, such as the digestive tract of a living person, with a medical imaging device such as a …

Background & Aims: We prospectively compared the performance of low-dose multidetector
computed tomographic colonography (CTC) without cathartic preparation with that of …

PURPOSE: To evaluate the use of preoperative virtual colonoscopy to examine the proximal
colon in patients with distal occlusive carcinomas, defined as cancers that cannot be …

BACKGROUND & AIMS:: This study used a low lesion prevalence population reflective of
the screening setting to estimate the sensitivity and specificity of computerized tomographic …

The development of multi detector-row CT has brought many exciting advancements to
clinical CT scanning. While multi detector-row CT offers unparalleled speed of acquisition …

Computed tomographic (CT) colonography is a new-generation technique for detecting
colorectal neoplasms by using volumetric CT data combined with specialized imaging …