论文标题

从概念到临床试验:iVist-第一个基于多传感器的实时体内剂量测定平台和HDR近距离放射治疗中的来源跟踪

From conception to clinical trial: IViST -- the first multi-sensor-based platform for real-time In Vivo dosimetry and Source Tracking in HDR brachytherapy

论文作者

Rosales, Haydee M. Linares, Cantin, Audrey, Aubin, Sylviane, Beddar, Sam, Beaulieu, Luc

论文摘要

这项研究旨在引入IVIST(体内源跟踪),这是一个新型的多传感器剂量测定平台,用于HDR近距离放射治疗中实时治疗监测。 Ivist是一个包括3个部分的平台:1)优化且具有特征的多点塑料闪光灯仪(3分MPSD;使用BCF-60; BCF-60,BCF-12和BCF-10闪烁体),2)2)紧凑型光电管(PMTS)的紧凑型和3个含量均匀镜像,并刻画了3个高高的镜像,并将用于系统管理和信号处理的基于Python的图形用户界面。静脉曲张可以同时测量剂量,三角测量源位置并测量停留时间。通过进行100,000个测量值/s,静脉输液样本足够的数据可以快速执行关键的QA/QC任务,例如识别错误的单个停留时间或互换转移管。通过将3个共线性传感器和计划的信息用于植入物几何形状(来自DICOM RT),该平台还可以实时进行三角测量源位置。目前,使用静脉系统正在进行临床试验。

This study aims to introduce IViST (In Vivo Source Tracking), a novel multi-sensors dosimetry platform for real-time treatment monitoring in HDR brachytherapy. IViST is a platform that comprises 3 parts: 1) an optimized and characterized multi-point plastic scintillator dosimeter (3 points mPSD; using BCF-60, BCF-12, and BCF-10 scintillators), 2) a compact assembly of photomultiplier tubes (PMTs) coupled to dichroic mirrors and filters for high-sensitivity scintillation light collection, and 3) a Python-based graphical user interface used for system management and signal processing. IViST can simultaneously measure dose, triangulate source position, and measure dwell time. By making 100 000 measurements/s, IViST samples enough data to quickly perform key QA/QC tasks such as identifying wrong individual dwell time or interchanged transfer tubes. By using 3 co-linear sensors and planned information for an implant geometry (from DICOM RT), the platform can also triangulate source position in real-time. A clinical trial is presently on-going using the IViST system.

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