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最初的Scratch-PET概念演示:一个带有手持探测器的手术内PET

Taiyo Ishikawa^1,2, Yuma Iwao³, Go Akamatsu³

¹Graduate School of Science and Engineering, Chiba University, Chiba, Japan. t_ishikawa@chiba-u.jp.

Radiological physics and technology

|March 12, 2025

概括

这项研究介绍了Scratch-PET,这是一种用于手术内瘤定位的新型手持正子发射断层扫描 (PET) 装置. 该系统成功地可视化了小瘤,证明了其对图像引导手术的潜力.

科学领域:

医疗成像医学成像
核医学就是核医学.
手术技术手术技术

背景情况:

定子发射断层扫描 (PET) 对于诊断恶性瘤至关重要.
术内PET成像增强了切除瘤局部化,但受到传统设备批量阻碍.
现有的PET扫描仪阻碍了外科领域,限制了手术内使用.

研究的目的:

提出和演示一种新的手术内PET装置Scratch-PET,用于图像引导的瘤切除.
开发一款超越传统手术内PET器件局限性的手持式探测器系统.
为了验证Scratch-PET在手术期间可视化小瘤的可行性.

主要方法:

开发了一种原型Scratch-PET系统,配备了手持式探测器和固定探测器阵列.
对于两个探测器,使用了伊正酸盐阵列与光倍增器阵列相结合.
使用光学跟踪传感器来监控手持探测器的位置和方向.
使用22Na多杆幻影 (1.6-6.0毫米杆) 和点源测试了原型.

主要成果:

该Scratch-PET原型成功可视化了位于偏离中心的2.2毫米棒和点源.
手持式探测器设计确保成像期间有一个开放的外科领域.
该系统证明了检测小瘤指标的可行性.

结论:

在手术环境中,Scratch-PET为手术期间的瘤定位提供了一个有前途的解决方案.
手持式设计可轻松进行手术,同时保持成像能力.
这项技术有可能提高瘤切除精度和患者的治疗结果.

关键词:

这是一个手持式探测器.图像引导手术是指导图像的手术.在外科手术期间进行PET成像.阳位子辐射断层扫描 (PET)

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