Twenty minutes into the call, clinicians injected a radioactive form of sugar into each person, then began imaging their brains with a Positron Emission Topography machine.

通话20分钟后，医生给每个人注射一种具有放射性的糖，然后利用正电子发射断层摄影仪对他们的大脑进行扫描。

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Methods Radioactive pulmonary perfusion imaging was performed in 25 patients clinically suspected for acute pulmonary embolism, meanwhile, imaging of deep veins of lower limb was taken.

方法对临床怀疑有急性肺动脉栓塞的25例患者进行了放射性核素肺灌注显像，同时行双下肢深静脉显像。

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Conclusions SPECT radioactive dynamic imaging is a sensitive and useful method in determining the salivary gland function of NPC patients who were treated by radiotherapy.

结论SPECT核素动态显像定量分析方法是评价鼻咽癌患者放疗后涎腺功能受损程度的敏感、实用的方法。

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They combined conventional PET imaging, which requires a radioactive tracer to highlight the brain's metabolic activity, with other recent advances in the genetic engineering of brain cells that allows them to target specific brain circuits in lab animals.

WSJ: Brain Science: Mysterious Neural Circuitry Becomes Viewable