نتایج جستجو برای: ct colonography
تعداد نتایج: 135985 فیلتر نتایج به سال:
In this work we formulate vessel segmentation on contrast-enhanced CT angiogram images as a Bayesian tracking problem. To obtain posterior probability estimation of vessel location, we employ sequential Monte Carlo tracking and propose a new vessel segmentation method by fusing multiple cues extracted from CT images. These cues include intensity, vesselness, organ detection, and bridge informat...
Purpose: CT colonography (CTC) has been accepted as an optical colonoscopy (OC) alternative for colorectal cancer (CRC) screening by some guidelines, while others maintain that the data is insufficient. CTC’s less invasive nature may improve compliance; however, cost and need colonoscopy, if lesions are detected, remain obstacle implementation. As a result, authors set out to determine cost-eff...
Although optical col on oscopy is the criterion standard for colorectal cancer screening, CT colonography is now accepted to be useful when screening averagerisk patients. Earlier studies that indicated poor sensitivity for CT colonography have now been largely refuted. Recent improvements in workstation design and advances that permit primary 3D viewing of images have increas ed screening accu...
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