And although Asimov's "positronic" brains do not exist, positrons are indeed used to probe human brains in positron-emission tomography (PET) scanning.

虽然阿西莫夫虚构的“正电子”大脑并不存在，但是正电子理论确确实实被应用于正电子衍射成像(PET)扫描技术上用来探索人类大脑。

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The scans, which used a technique called positron emission tomography (PET), were designed to monitor changes in the way the brain metabolised glucose, the fuel it needs to function.

扫描利用了一种叫做正电子发射X射线层析照相术(PET)的技术。 扫描用以监测脑中代谢葡萄糖（脑正常工作需要的营养物）的变化。

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Positron emission tomography (PET) is an emerging modality in lung cancer staging.

正电子放射断层造影术(PET)是新兴的适用于肺癌分期的检查方法。

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Doctors can look for indications of the disease using positron emission tomography (PET) scans.

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The mobile positron emission tomography (Pet) scanner visits the Bristol Royal Infirmary (BRI) three times a week.

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Once these proteins have been highlighted, they can be seen using a sophisticated positron emission tomography (PET) scans.

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