单词 | positron emission tomography |
释义 | positron emission tomography [`päz·ǝ´trän i¦mish·ǝn tō`mäg·rǝ·fē] MEDICINE A technique that uses measurements of the back-to-back emission of gamma rays from the annihilation of positrons emitted by radioactive tracers to map the distribution of these tracers in the human body. Abbreviated PET. |
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