使用电磁跟踪检测的基于TRUS的临床内科前列腺HDR-BT检测的复合错误
Ioannis Androulakis1, Jérémy Godart2, Lorne Luthart1
1Department of Radiotherapy, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, Netherlands.
Brachytherapy
|December 1, 2024
概括
四分之一的前列腺癌高剂量率支臂疗法植入物重建的错误超过2mm. 电磁跟踪 (EMT) 可以检测这些错误,提高处理精度.
科学领域:
- 在瘤学瘤学.
- 医学物理 医学物理
- 辐射疗法 辐射疗法
背景情况:
- 前列腺癌高剂量率支臂治疗 (HDR-BT) 依赖于精确的植入物重建.
- 基于跨直肠超声波 (TRUS) 的方法可以引入重建错误.
研究的目的:
- 调查前列腺HDR-BT.基于TRUS的植入物重建中的错误.
- 评估后载机集成电磁跟踪 (EMT) 系统在识别这些错误方面的实用性.
主要方法:
- 接受前列腺HDR-BT治疗的14名患者进行了手术内EMT测量.
- 计算了临床重建和EMT测量的静止位置之间的欧几里德距离.
- 错误被分为重度级别和原因调查.
主要成果:
- 测量和重建位置之间的中等欧几里德距离为1.0毫米.
- 23%的重建有轻微或较大的错误;9%有重大或严重的错误.
- 错误原因包括错误的针头/深度选择,文物,影像和用户错误.
结论:
- 显著比例的HDR-BT植入物重建包含错误.
- 紧急救护医生可以检测重建错误而不会破坏临床工作流程.
- 医疗急诊提供了一种有价值的工具,可以提高前列腺HDR-BT的准确性.
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