Results 131 to 140 of about 3,386 (177)
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Contrast-enhanced CT colonography
Seminars in Ultrasound, CT and MRI, 2001Computed tomography (CT) colonography provides both a multiplanar and endoluminal perspective of the air-filled, distended, cleansed colon, offering an alternative to traditional approaches to colorectal cancer screening. However, there are still limitations associated with CT colonography that need to be resolved, including inadequate bowel distention
M M, Morrin, V, Raptopoulos
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Vasovagal reactions in CT colonography
Abdominal Imaging, 2007We describe the occurrence of vasovagal reaction in two patients who underwent CT colonography (CTC). The patients, asymptomatic, were submitted to CTC in one case after right colectomy and in one case for screening purposes. The vasovagal symptoms occurred after pneumocolon and acquisition in the prone decubitus, and included headache, hypotension ...
NERI, EMANUELE +5 more
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The Evolving Role of CT Colonography
Cancer Investigation, 2007Colorectal cancer (CRC) screening is widely recommended as part of standard preventive care. All average risk persons over the age of 50 y are eligible. Various authorities have advocated fecal occult blood testing, flexible sigmoidoscopy, barium enema and colonoscopy at varying intervals as acceptable screening options.
Nikhil, Deshpande, David S, Weinberg
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Extracolonic findings at CT colonography
Abdominal Imaging, 2005This review focuses on the detection of extracolonic findings at CT colonography (CTC). Since its introduction, it has been regarded as a promising alternative to conventional colonoscopy for the detection of colorectal polyps and cancers. Unlike conventional colonoscopy and barium enema, CTC allows evaluation not only of the colon but also ...
J, Sosna +4 more
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CT colonography and cost-effectiveness
European Radiology, 2008CT colonography (CTC) is increasingly advocated as an effective initial screening tool for colorectal cancer. Nowadays, policy-makers are increasingly interested in cost-effectiveness issues. A number of studies assessing the cost-effectiveness of CTC have been published to date. The majority of findings indicate that CTC is probably not cost-effective
Ifigeneia, Mavranezouli +2 more
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Recent developments in CT colonography
Clinical Radiology, 2005CT colonography allows reliable, non-invasive, rapid, high resolution imaging of the whole large bowel. Recent advances in technology such as computer-aided detection (CAD), scanning with or without bowel preparation, and low radiation are continually developing to improve the efficacy of this technique. This review will update the reader as to ongoing
F B, Nicholson +3 more
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Colonography using multislice CT
European Journal of Radiology, 2000Computed tomography (CT) represents the preferred imaging modality for imaging the large bowel when virtual endoscopic reconstructions are desired. Using the spiral acquisition technique, it has become possible to scan the entire abdomen within a single breathhold, however, slice thicknesses of 5 mm or more are necessary should the breathhold not last ...
P, Rogalla +3 more
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CT Colonography: Techniques and Applications
Radiologic Clinics of North America, 2009CT colonography (CTC), also termed virtual colonoscopy, is increasingly accepted at sites throughout the world as a new effective tool for the diagnosis and screening of colorectal carcinoma. This article presents information of related issues of bowel cleansing, stool and fluid tagging, bowel distention and multidetector CT scanning parameters.
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Perceptive errors in CT colonography
Abdominal Imaging, 2006Published results to date have indicated a good per patient sensitivity of computed tomographic colonography (CTC) for colorectal cancer and for polyps measuring 10 mm or more together with a very good specificity. Sensitivity and specificity for polyps in the range of 6-10 mm are moderate.
Nio, C. Y., de Vries, A. H., Stoker, J.
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Flat lesions in CT colonography
Abdominal Imaging, 2009Flat lesions have been a source of controversy because of concerns that CT colonography (CTC) is insensitive in detecting these lesions, yet they may harbor a high incidence of advanced neoplasia. The wide variation in the reported incidence of flat lesions may in part be due to the lack of a uniform definition of "flat", and in fact in many prior ...
Lostumbo, A. +2 more
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