Investigating the use of comprehensive motion monitoring for intrafraction 3D drift assessment of hypofractionated prostate cancer patients on a 1.5T magnetic resonance imaging radiotherapy system

IF 3.4 Q2 ONCOLOGY

Physics and Imaging in Radiation Oncology Pub Date : 2024-07-01 DOI:10.1016/j.phro.2024.100596

Georgios Tsekas, Cornel Zachiu, Gijsbert H. Bol, Madelon van den Dobbelsteen, Lieke T.C. Meijers, Astrid L.H.M.W. van Lier, Johannes C.J. de Boer, Bas W. Raaymakers

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引用次数: 0

Abstract

This work investigates the use of a multi-2D cine magnetic resonance imaging-based comprehensive motion monitoring (CMM) system for the assessment of prostate intrafraction 3D drifts. The data of six healthy volunteers were analyzed and the values of a clinically-relevant registration quality factor metric exported by CMM were presented. Additionally, the CMM-derived prostate motion was compared to a 3D-based reference and the 2D-3D tracking agreement was reported. Due to the low quality of SI motion tracking (often $>$ 2 mm tracking mismatch between anatomical planes) we conclude that further improvements are desirable prior to clinical introduction of CMM for prostate drift corrections.

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研究在 1.5T 磁共振成像放射治疗系统上使用综合运动监测对低分量前列腺癌患者进行分量内三维漂移评估的情况

这项研究利用基于多二维电影磁共振成像的综合运动监测（CMM）系统来评估前列腺分块内的三维漂移。研究分析了六名健康志愿者的数据，并给出了 CMM 导出的临床相关配准质量因子指标值。此外，还将 CMM 导出的前列腺运动与基于 3D 的参照物进行了比较，并报告了 2D-3D 跟踪一致性。由于 SI 运动跟踪的质量不高（解剖平面之间经常出现 2 毫米的跟踪不匹配），我们得出结论，在临床上采用 CMM 进行前列腺偏移校正之前，需要进一步改进。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics and Imaging in Radiation Oncology Physics and Astronomy-Radiation

CiteScore

5.30

自引率

18.90%

发文量

审稿时长

6 weeks