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scintigraphy
Scintigraphy ("scint," Latin scintilla, spark) is a form of diagnostic test used in nuclear medicine, wherein radioisotopes are taken internally (via radiopharmaceuticals) and the emitted radiation is captured by external detectors (gamma cameras) to form two-dimensional〔(thefreedictionary.com > scintigraphy ) Citing: Dorland's Medical Dictionary for Health Consumers, 2007 by Saunders; Saunders Comprehensive Veterinary Dictionary, 3 ed. 2007; McGraw-Hill Concise Dictionary of Modern Medicine, 2002 by The McGraw-Hill Companies〕 images. In contrast, SPECT and ''positron emission tomography'' (PET) form 3-dimensional images, and are therefore classified as separate techniques to scintigraphy, although they also use gamma cameras to detect internal radiation. Scintigraphy is unlike a diagnostic X-ray where external radiation is passed through the body to form an image.
==By organ or organ system==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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