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General remarks:knacks and pitfalls about pre-treatment, image acquisition, image reconstruction, image interpretation Koji Murakami 1 1Department of Radiology Juntendo University, School of Medicine Keyword: FDG-PET/CT , 前処置 , 撮影機器 pp.1109-1117
Published Date 2019/8/10
DOI https://doi.org/10.18888/rp.0000000974
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Basically, volume of the data that composes PET image is relatively small compared to that of CT and MRI, and the information obtained from images is only “whether there is accumulation or not” “whether accumulation is strong or weak”. Because of small amount of information, PET image is easily affected by many other factors, such as status of pre-treatment, way of image acquisition, method of reconstruction, etc. Some medication or medical procedure also influence glucose metabolism to cause false negative/positive foci. Therefore, it is necessary to determine whether the accumulation is actual accumulation by lesions or false deposit made by other factors before interpretation of PET. To avoid a misinterpretation we have to know various factors and artifacts that affect the images. In this paper, I outline the factors that affect the image and reduce its diagnostic ability, and the precautions to prevent it.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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