V2EX pet scan

PET Scan

释义 Definition

PET scan正电子发射断层扫描(常与 CT 结合为 PET-CT)。一种核医学影像检查,通过注射微量放射性示踪剂(常见为葡萄糖类似物),观察组织的代谢活动,常用于肿瘤分期与复发监测、评估治疗效果、部分心脏与脑部疾病检查

发音 Pronunciation (IPA)

/pt skn/

例句 Examples

I had a PET scan to check the tumor.
我做了 PET 扫描来检查肿瘤。

After chemotherapy, the doctor ordered a PET scan to see whether the cancer had spread or responded to treatment.
化疗后,医生安排做 PET 扫描,以判断癌症是否扩散或对治疗是否有反应。

词源 Etymology

PET 是缩写,来自 Positron Emission Tomography(正电子发射断层成像/断层扫描)。scan 源自表示“快速查看、扫描”的词义,在医学语境中引申为“影像扫描检查”。该术语随着 20 世纪后期核医学成像技术的发展而普及。

相关词 Related Words

文学与作品 Literary Works

  • When Breath Becomes Air(《当呼吸化为空气》)以临床检查与影像结果推动叙述,涉及包括影像扫描在内的诊疗语境。
  • The Emperor of All Maladies(《众病之王:癌症传》)讨论癌症诊断与治疗进展的非虚构作品,常提及现代影像学检查(包括 PET 扫描相关内容)。
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