Download CT Colonography for Radiographers: A Guide to Performance by Joel H. Bortz, Aarthi Ramlaul, Leonie Munro PDF

By Joel H. Bortz, Aarthi Ramlaul, Leonie Munro

This ebook explains each element of the function of radiographers in acting CT colonography (CTC) and studying CTC pictures with the purpose of permitting radiographers to increase the scope in their perform. It presents the entire details required with appreciate to procurement of trained consent, ideas of CT and radiation dose, sufferer instruction and positioning, using distinction media, the functionality of diagnostic and screening CTC reports, and the translation and reporting of pictures. a variety of CTC findings are defined and depicted, overlaying general anatomy, artifacts, hemorrhoids, polyps, colon melanoma, diverticular disorder, lipomas, and extracolonic buildings. moreover, a bankruptcy targeting self-assessment of picture interpretation will relief studying. The emerging variety of CTC reviews for colon problems is including to an already confused radiology workload. to minimize this workload, radiographers will more and more receive accountability to hold out CTC examinations and this ebook will give you the aid that they wish in an effort to practice CTC stories to the traditional required.

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Extra info for CT Colonography for Radiographers: A Guide to Performance and Image Interpretation

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The standard on patient information and consent sets out the following minimum acceptable practice and best practice which are still relevant today [6]. • The process of providing patient information must follow an established pathway. • If using local information leaflets, they must comply with national standards. • The writing of information leaflets must be carried out in liaison with patient/service user advisory groups. • National Patient Safety Guidelines (NPSA) must be followed during the prescribing of laxatives for bowel preparation.

A narrow window width results in a high con- –1000 HU air trast image. 4. A CT image contains a wide range of X-ray attenuation values, converted into Hounsfield units. But the eye cannot visualise so many grades of signal within the associated greyscale. Thus, the range of tissue attenuations to be visualised on a CT image is narrowed down to a window width of values, centred around an attenuation value which is called the window level. Typical window levels used in practice might be about +50 for soft tissues, −500 for the lungs and +250 for the bone.

Yee J, Weinstein S, Morgan T, et al. Advances in CT colonography for colorectal cancer screening and diagnosis. J of Cancer. 2013;4(3):200–9. doi. 5858. 3. Mang T, Graser A, Schima W, Maier A. CT colonography: techniques, indications, findings. Eur J Radiol. 2007;61:388–99. 4. Henwood SA, Munro L. Principles of communication. In: Ramlaul A, Vosper M, editors. Patient centered care in medical imaging and radiotherapy. London: Churchill Livingstone Elsevier; 2013. p. 3–6. 5. Reeves PJ. Communication with specific patients.

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