By Thomas Flohr (auth.), Christoph Johannes Zech, Carlo Bartolozzi, Richard Baron, Maximilian F. Reiser (eds.)
This publication offers a lucid precis of contemporary multislice CT imaging of the stomach, with a spotlight at the crucial imaging findings. After a concise technical creation, crucial belly ailments are defined and illustrated with top quality photos. Sections are dedicated to the liver and biliary approach, the pancreas and spleen, the kidneys and urogenital approach, and the bowel and peritoneal hollow space. all through, key differential diagnostic positive factors are highlighted. The editorial crew consists of the world over popular radiologists from Europe and the USA, and all chapters were written through famous specialists within the subject into consideration. Multislice CT of the Abdomen will function an exceptional reference for radiologists engaging in extra specialist education and may end up a great resource of data for all who desire to deepen their own wisdom of the topic.
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Additional info for Multislice-CT of the Abdomen
As a form of investigation level, they apply to easily measurable dose quantities (in case of CT examinations the CTDIvol and/or DLP) and are intended for use as a simple test for evaluating whether the patient dose (with regard to stochastic effects) 31 is unusually high for a particular imaging or interventional procedure. It should be noted, that they do not apply to individual patients but rather to the mean dose value determined in practice for a suitable reference group (comprising at least 10 patients).
However, all previously assessed MAR algorithms, besides removing the metal artefacts, introduced new artefacts and cannot completely recover the information from the metal trace. More advanced methods such as empirical beam-hardening correction (EBHC) and normalised MAR (NMAR) are currently under investigation; both have proven to be quite effective in phantom studies and initial clinical applications (Kyriakou et al. 2010; Meyer et al. 2010) (Fig. 4). Without doubt, these or similar mathematical methods will be integrated into future CT reconstruction algorithms and thus will contribute to further image quality improvements in abdominal imaging.
Generally, the third quartile of the mean dose levels evaluated in these facilities for a particular X-ray procedure becomes the corresponding reference level. They should be set by professional medical bodies in conjunction with national health or radiological protection authorities and reviewed at intervals that represent a compromise between the necessary stability of the protection system and the changes in the observed dose distributions. Figure 4 demonstrates the procedure at the example of CT examinations of the abdomen.