Diseases

CT colonography : a guide for clinical practice by Schima, Wolfgang; Mang, Thomas; Graser, Anno

By Schima, Wolfgang; Mang, Thomas; Graser, Anno

"Highly powerful as a minimally invasive diagnostic and screening instrument, CT colonography (CTC) is a crucial a part of modern day medical armamentarium. during this concise, step by step guidebook, written by means of experts who additionally run education classes in CT colonography, readers will discover a wealth of data for daily perform. From exam tools and snapshot interpretation, to screening and reporting concerns, to Read more...

summary: "Highly potent as a minimally invasive diagnostic and screening instrument, CT colonography (CTC) is a vital a part of trendy medical armamentarium. during this concise, step by step guidebook, written by means of experts who additionally run education classes in CT colonography, readers will discover a wealth of data for daily perform. From exam tools and photo interpretation, to screening and reporting concerns, to universal errors and pitfalls to prevent, this compact booklet is all-inclusive, excellent for either newbies and more matured examiners who are looking to deepen their wisdom of this robust procedure. precise gains: complete dialogue of the way to start, together with symptoms and contraindications, sufferer education, CT exam innovations, and sufferer danger profile; recommendations for information research and scientific interpretation, together with second and 3D purposes ("virtual" visualization), polyp size, and computer-assisted detection of polyps; informative, point-by-point sections on medical findings, beginning with common anatomy of the colon and relocating directly to universal illnesses, postoperative stipulations, pitfalls and artifacts, and extracolonic involvement; greater than four hundred fantastic, absolutely classified illustrations (176 in full-color), together with general CT scans and 2nd and 3D reconstructions that exhibit diagnostic standards, attainable differential diagnoses, and illness states; guidance for standardizing studies and documenting findings; assistance for constructing a digital colonoscopy carrier on your medical institution or practice"--Provided by means of writer

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This device is easy to use and enables optimized, safe colonic distension using carbon dioxide. Recent studies have shown improved distension, especially in the left colon when the patient is in the supine position, as well as better patient comfort compared with manual disten- Fig. 15 Device for automatic insufflation of carbon dioxide (PROTOCO2L). The device is supplied with carbon dioxide from a pressurized tank and ensures automated pressure-controlled and volume-controlled delivery of gas.

Positioning the Patient How far each individual bowel segment is distended during CT colonography also depends on the patient’s position. According to the ESGAR consensus statement, a complete CT colonography consists of two scans: one with the patient prone and one with the patient supine. As an alternative to the prone position, the scan may also Sequence of positions. There is no consensus as to which position is best for the first scan. At our center, we perform the first scan with the patient prone and the second with the patient supine.

This prevents displacement of the catheter, especially when the patient is being repositioned. In our unit, the catheter is left in place in the rectum throughout the entire examination. Some investigators deflate or remove the catheter balloon before the second scan to avoid masking a deep rectal lesion. Distending the colon: Either room air or carbon dioxide may be used to distend the colon. Air is easily delivered using a hand pump connected to the rectal catheter. , PROTOCO2L; Bracco, Milan, Italy).

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