By Stefano Fanti
This straight forward atlas, that includes approximately 500 photos, can be a brief advisor to reading PET/CT pictures with FDG in oncology. It additionally illustrates how one can realize common, para-physiological, and benign pathological uptakes in a case-based functional demeanour. The textual content, such as so much appropriate technical and pathophysiological premises, covers the most medical functions and obviously articulates studying issues and pitfalls. This atlas goals to turn into a typical textual content for nuclear drugs physicians and radiologists, citizens and technicians whose paintings consists of PET/CT imaging. This publication is additionally compatible for either undergraduate and postgraduate classes.
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This hassle-free atlas, that includes approximately 500 photos, will be a brief advisor to examining PET/CT photographs with FDG in oncology. It additionally illustrates how you can realize general, para-physiological, and benign pathological uptakes in a case-based useful demeanour. The textual content, together with so much proper technical and pathophysiological premises, covers the most scientific purposes and obviously articulates studying issues and pitfalls.
Extra resources for Atlas of PET/CT - A Quick Guide to Image Interpretation
Even an old and simple 4 slices CT is able to perform a whole body examination in an acceptable time, allowing the study of every portion of the body within an appropriate timeframe. Increasing the number of the slices reduces, of course, the examination time, but the diagnostic improvement is especially evident in vascular studies, and 64 or more slices are really mandatory only for cardiac studies. For that reason, 8 or 16 slices machines should be considered absolutely adequate if heart studies are not planned.
It is possible to choose between positive or neutral endoluminal contrast agents. 5 g/100 ml–1000 cc; and meglumine diatrizoate, 3%–1000 cc. Positive contrast agents allow better delineation of gastrointestinal tract organs from their surrounding structures but exhibit potential PET attenuation artifacts. v. contrast mucosal enhancement (normally obscured by positive oral contrast), without potential PET/CT attenuation artifacts. Which neutral contrast would be more useful? Water is cheap, but absorbed quickly and is only good for stomach and proximal small bowel.
FDG uptake due to abscess 48 Teaching point The presence of a clinically evident inflammatory process will always determine an increased uptake of FDG. Therefore, PET cannot be used to characterize an uncertain CT finding at the same level of an abscess, but nevertheless can be used to evaluate the rest of the body. Case 6 Abdomen: Aortic Aneurysm 3 Teaching point FDG is probably taken up by inflammatory cells of atheromasic plaque that infiltrated the arterial walls and the soft tissue mass. This case indicates that FDG-PET is a useful method for localization of inflammatory lesion in patients with unspecific clinical findings and laboratory data.