New PDF release: CT colonography : a guide for clinical practice

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

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

summary: "Highly potent as a minimally invasive diagnostic and screening software, CT colonography (CTC) is a vital a part of latest scientific 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 photograph interpretation, to screening and reporting matters, to universal error and pitfalls to prevent, this compact e-book is all-inclusive, excellent for either novices and more matured examiners who are looking to deepen their wisdom of this strong method. particular positive factors: complete dialogue of the way to start, together with symptoms and contraindications, sufferer instruction, CT exam innovations, and sufferer chance profile; concepts for info 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 general anatomy of the colon and relocating directly to universal illnesses, postoperative stipulations, pitfalls and artifacts, and extracolonic involvement; greater than four hundred tremendous, absolutely categorised illustrations (176 in full-color), together with general CT scans and second and 3D reconstructions that show diagnostic standards, attainable differential diagnoses, and ailment states; directions for standardizing experiences and documenting findings; suggestions for constructing a digital colonoscopy carrier on your sanatorium or practice"--Provided by means of writer

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CT colonography : a guide for clinical practice - download pdf or read online

"Highly potent as a minimally invasive diagnostic and screening device, CT colonography (CTC) is a vital a part of latest 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 knowledge for daily perform.

Extra info for CT colonography : a guide for clinical practice

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The rectum, sigmoid colon, and descending colon may be underdistended in the standard positions (supine is shown) and filled with residual fluids. In the right lateral decubitus position, these bowel segments may become well distended and fluids may move into the ascending colon and cecum. 2 26 2 Examination Fig. 22 a, b Additional right lateral decubitus scan when residual fluids are impairing the quality of the examination. a In the supine position, the descending colon is completely filled with tagged fluid (arrowhead).

It is increasingly applied in routine body CT scanning. All CT vendors now employ second-generation (raw-databased) iterative reconstruction techniques. Initial studies assessing this technique in CT colonography have shown promising results. Effective patient dose. Two significant parameters for the measurement of effective patient dose [in millisieverts (mSv)] are the volume CT dose index (CTDIvol) and the dose length product (DLP). The effective dose is calculated using these parameters, organ-related weighting factors, scan parameters, and the sex of the patient.

To minimize breathing artifacts, CT colonographic scans should be performed in the craniocaudal direction. Slice thickness and data volume. For high-quality images, individual slices must be overlapped and reconstructed. 2). This results in a large number of single images, typically as many as 1200, which can only be properly interpreted with the aid of a special off-line workstation. It is important that the internal data transmission system or PACS (picture archiving and communication system) is suitable for supporting the volume of data required for CT colonography.

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