RT Journal Article
SR Electronic
T1 Development and Accuracy Evaluation of Augmented Reality-based Patient Positioning System in Radiotherapy: A Phantom Study
JF In Vivo
JO In Vivo
FD International Institute of Anticancer Research
SP 2081
OP 2087
DO 10.21873/invivo.12477
VO 35
IS 4
A1 KAZUO TARUTANI
A1 HARUYUKI TAKAKI
A1 MASATAKA IGETA
A1 MASAYUKI FUJIWARA
A1 AYAKO OKAMURA
A1 FUTO HORIO
A1 YUKI TOUDOU
A1 SATOSHI NAKAJIMA
A1 KAZUFUMI KAGAWA
A1 MASAO TANOOKA
A1 KOICHIRO YAMAKADO
YR 2021
UL http://iv.iiarjournals.org/content/35/4/2081.abstract
AB Background/Aim: To develop and evaluate the accuracy of augmented reality (AR)-based patient positioning systems in radiotherapy. Materials and Methods: 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. Results: 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). Conclusion: 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.