以下为句子列表：
英文: A series of staging investigations were undertaken, including positron emission tomography (PET) scan, which revealed high risk of metastasis to the cervical lymph nodes.
中文: 一系列的检查（包括正子造影）发现有高机率颈部淋巴结转移。
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英文: Abstract: Positron spectroscopy is a new and sensitive microanalytical probe for characterization of polymer microstructures.We report recent advances in this area,including studies on the free volume properties,structural transition,miscibility of blendi
中文: 文摘:简要介绍了近年来正电子谱学在聚合物微结构研究中的主要应用及进展.大量实验事实表明，正电子谱学是表征高聚物微结构的极灵敏方法.
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英文: Angiography and 18F-fluorodeoxyglucose-positron emission tomography (18FDG-PET) imaging were carried out in all patients.
中文: 所有患者进行了血管学和（18）F-氟去氧葡萄糖-电子发射断层扫描((18)FDG-PET)影像检查。
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英文: Antimatter/matter reactions have practical applications in medical imaging, see Positron emission tomography (PET).
中文: 反物质/物质反应在医学成像有实际应用,注意正电子放射断层摄影术(PET)。
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英文: But an elegant study using positron emission tomography (PET), which indirectly measures metabolism, has shown that different regions of the brain are activated when a subject is asked to imagine a sound than when he or she is hallucinating under hypnosis
中文: 不过有一个精密的研究，使用正子断层扫描（PET）来间接测量代谢活动，显示想像的声音与催眠中的幻听，启动了脑中不同的部位。
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