Matthew Barish

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OBJECTIVE The purpose of our study was to determine the current opinions regarding the performance, interpretation, reporting, and clinical role of virtual colonoscopy among a group of selected experts to develop a consensus statement. MATERIALS AND METHODS A questionnaire was sent to 33 selected experts in virtual colonoscopy. Responses were tabulated(More)
Executive Summary Prominent among a number of new techniques with which to image the colon, computed tomographic (CT) colonography is extremely attractive because it is noninva-sive and also relatively simple for patients to undergo. As the technology evolves, it is important that gastroenterolo-gists not only understand the multiple issues surrounding CT(More)
The mechanisms involved in the generation of motion artifacts in MR imaging are complex and depend both on the type and direction of motion as well as on the parameters of the imaging sequence chosen. The methods used to control or reduce motion artifacts are multiple and the appropriate method for use with any given clinical situation will depend on the(More)
Virtual colonoscopy (VC) allows a user to virtually navigate within a reconstructed 3D colon model searching for colorectal polyps. Though VC is widely recognized as a highly sensitive and specific test for identifying polyps, one limitation is the reading time, which can take on average 30 minutes per patient. Large amounts of the colon are often devoid of(More)
Human colon has complex structures mostly because of the haustral folds. The folds are thin flat protrusions on the colon wall, which complicate the shape analysis for computer-aided detection (CAD) of colonic polyps. Fold segmentation may help reduce the structural complexity, and the folds can serve as an anatomic reference for computed tomographic(More)
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