نتایج جستجو برای: ct colonography
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s and Presentations H. Xu, H. D. Gage, C. L. Wyatt, Y. Shen, and P. Santago, "Design classificationsystem for computer-aided diagnosis in CT Colonography," in SIIM 2009 Annual Meeting.2009.H. Xu and P. Santago, “Polyp Segmentation and Detection in CT ColonographyUsing Geodesic Active Contours with Shape Prior,” in 9 Annual Graduate StudentResearch Symposium, School of Biomed...
To date, the College of Radiology (CoR) does not see any clear benefit in performing whole body screening computed tomography (CT) examinations in healthy asymptomatic individuals. There are radiation risk issues in CT and principles of screening should be adhered to. There may be a role for targeted cardiac screening CT that derives calcium score, especially for asymptomatic medium-risk indivi...
CT colonography is routinely performed with the patient prone and supine to differentiate fixed colonic pathology from mobile faecal residue. We propose a novel method to automatically establish correspondence. Haustral folds are detected using a graph cut method applied to a surface curvature-based metric, where image patches are generated using endoluminal CT colonography surface rendering. T...
BACKGROUND Computed tomographio colonography, also known as virtual colonoscopy, is a rapid, non-invasive imaging technique to detect colorectal masses and polyps that is becoming increasingly popular. OBJECTIVES To evaluate the availability, technique, standards of performance and indications for CT colonography in Israel. METHODS A questionnaire on CT colonography was sent to all radiolog...
Colorectal carcinoma is a common lethal disease with signs and symptoms that may be nonspecific. Computed tomography (CT) of the abdomen and pelvis with or without contrast is frequently performed for various general abdominal complaints, but unlike CT colonography, the large bowel may not be optimally prepared for evaluation. As such, careful and diligent assessment of the non-prepared colon i...
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