Department of Radiology, Hyogo College of Medicine, Hyogo, Japan.
Japan Organization of Occupational Health and Safety Kansai Rousai Hospital, Hyogo, Japan.
In Vivo. 2021 Jul-Aug;35(4):2081-2087. doi: 10.21873/invivo.12477.
BACKGROUND/AIM: To develop and evaluate the accuracy of augmented reality (AR)-based patient positioning systems in radiotherapy.
AR head-mounted displays (AR-HMDs), which virtually superimpose a three-dimensional (3D) image generated by the digital imaging and communications in medicine (DICOM) data, have been developed. The AR-based positioning feasibility was evaluated. Then, the setup errors of three translational axes directions and rotation angles between the AR and the conventional laser-based positioning were compared.
The AR-based pelvic phantom positioning was feasible. The setup errors of AR-based positioning were comparable to laser-based positioning in all translational axis directions and rotation angles. The time necessary for AR-based positioning was significantly longer than that for laser-based positioning (171.0 s vs. 47.5 s, p<0.001).
AR-based positioning for radiotherapy was feasible, and showed comparable positioning errors to those of conventional line-based positioning; however, a markedly longer setup time was necessary.
背景/目的：开发并评估基于增强现实（AR）的放射治疗患者定位系统的准确性。
开发了基于 AR 的头戴式显示器（AR-HMD），它可以将由数字成像和通信在医学（DICOM）数据生成的三维（3D）图像虚拟地叠加。评估了基于 AR 的定位可行性。然后，比较了 AR 与传统基于激光的定位之间三个平移轴方向和旋转角度的设置误差。
基于 AR 的骨盆模型定位是可行的。AR 基于定位的设置误差在所有平移轴方向和旋转角度上与基于激光的定位相当。基于 AR 的定位所需的时间明显长于基于激光的定位（171.0 s 与 47.5 s，p<0.001）。
放射治疗的基于 AR 的定位是可行的，并且与传统的线基于定位的定位误差相当；然而，需要明显更长的设置时间。
