title: [Comparison of various image guided radiation therapy systems; image-guided localization accuracy and patient throughput].
abstract: In this study, we evaluated various image guided radiation therapy (IGRT) systems regarding accuracy and patient throughput for conventional radiation therapy. We compared between 2D-2D match (the collation by 2 X-rays directions), cone beam computed tomography (CBCT), and ExacTrac X-Ray system using phantom for CLINAC iX and Synergy. All systems were able to correct within almost 1 mm. ExacTrac X-Ray system showed in particular a high accuracy. As for patient throughput, ExacTrac X-Ray system was the fastest system and 2D-2D match for Synergy was the slowest. All systems have enough ability with regard to accuracy and patient throughput on clinical use. ExacTrac X-Ray system showed superiority with accuracy and throughput, but it is important to note that we have to choose the IGRT technique depending on the treatment site, the purpose, and the patient's state.
authors.affiliation: Department of Radiological Technology, Kumamoto University Hospital.
authors.forename: Eriko
authors.initials: E
authors.lastname: Takenaga
authors.forename: Yuji
authors.initials: Y
authors.lastname: Nakaguchi
authors.forename: Masato
authors.initials: M
authors.lastname: Maruyama
authors.forename: Nozomu
authors.initials: N
authors.lastname: Nagasue
authors.forename: Kiyotaka
authors.initials: K
authors.lastname: Kakei
authors.forename: Yudai
authors.initials: Y
authors.lastname: Kai
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Kouno
authors.forename: Motoharu
authors.initials: M
authors.lastname: Sasaki
authors.forename: Masahiro
authors.initials: M
authors.lastname: Hashida
mesh_terms: D054893:Cone-Beam Computed Tomography / Q000379:methods; D006801:Humans; D019047:Phantoms, Imaging; D061089:Radiotherapy, Image-Guided / Q000592:standards