[Method for evaluating the mechanical isocenter of the gantry of a radiotherapy machine with motion picture trace analysis software].

Nobutaka Yanano, Toshioh Fujibuchi

研究成果: ジャーナルへの寄稿記事

抄録

In recent years, development of advanced radiotherapy technology has resulted in an improvement in radiotherapy. Although the radiotherapy system has improved, the effect of the gap, the gyration center, and distortion of the rotation orbit cannot be neglected. Therefore, a verification method for a geometrical isocenter and rotation orbit in a three-dimension (3D) space is required. We developed a verification method for determination of the geometrical isocenter. In this method, the rotation of the gantry that applied the measured target from two directions was imaged and analyzed using animation pursuit analysis software. The measurement targets were pursued by analysis, and the rotation orbit of the target was visually evaluated from obtained coordinates and displacement distance. The gyration center in 3D space was calculated from pursued coordinates and compared with the intersection in the side laser and crosshair. In this verification method, the rotation orbit and geometrical isocenter in the 3D space were confirmed, and visually evaluated. Thus, this method was effective in verifying the geometrical isocenter by solving the problem of the measurement precision and reproducibility.

元の言語英語
ページ(範囲)1499-1507
ページ数9
ジャーナルNihon Hoshasen Gijutsu Gakkai zasshi
68
発行部数11
DOI
出版物ステータス出版済み - 1 1 2012
外部発表Yes

Fingerprint

Motion Pictures
Orbit
Radiotherapy
Software
Lasers
Technology

All Science Journal Classification (ASJC) codes

  • Medicine(all)

これを引用

@article{5c4d3e6b13094edc8ba964fee8e52cd7,
title = "[Method for evaluating the mechanical isocenter of the gantry of a radiotherapy machine with motion picture trace analysis software].",
abstract = "In recent years, development of advanced radiotherapy technology has resulted in an improvement in radiotherapy. Although the radiotherapy system has improved, the effect of the gap, the gyration center, and distortion of the rotation orbit cannot be neglected. Therefore, a verification method for a geometrical isocenter and rotation orbit in a three-dimension (3D) space is required. We developed a verification method for determination of the geometrical isocenter. In this method, the rotation of the gantry that applied the measured target from two directions was imaged and analyzed using animation pursuit analysis software. The measurement targets were pursued by analysis, and the rotation orbit of the target was visually evaluated from obtained coordinates and displacement distance. The gyration center in 3D space was calculated from pursued coordinates and compared with the intersection in the side laser and crosshair. In this verification method, the rotation orbit and geometrical isocenter in the 3D space were confirmed, and visually evaluated. Thus, this method was effective in verifying the geometrical isocenter by solving the problem of the measurement precision and reproducibility.",
author = "Nobutaka Yanano and Toshioh Fujibuchi",
year = "2012",
month = "1",
day = "1",
doi = "10.6009/jjrt.2012_JSRT_68.11.1499",
language = "English",
volume = "68",
pages = "1499--1507",
journal = "Nippon Hoshasen Gijutsu Gakkai zasshi",
issn = "0369-4305",
publisher = "Nihon Hoshasen Gijutsu Gakkai/Japanese Society of Radiological Technology",
number = "11",

}

TY - JOUR

T1 - [Method for evaluating the mechanical isocenter of the gantry of a radiotherapy machine with motion picture trace analysis software].

AU - Yanano, Nobutaka

AU - Fujibuchi, Toshioh

PY - 2012/1/1

Y1 - 2012/1/1

N2 - In recent years, development of advanced radiotherapy technology has resulted in an improvement in radiotherapy. Although the radiotherapy system has improved, the effect of the gap, the gyration center, and distortion of the rotation orbit cannot be neglected. Therefore, a verification method for a geometrical isocenter and rotation orbit in a three-dimension (3D) space is required. We developed a verification method for determination of the geometrical isocenter. In this method, the rotation of the gantry that applied the measured target from two directions was imaged and analyzed using animation pursuit analysis software. The measurement targets were pursued by analysis, and the rotation orbit of the target was visually evaluated from obtained coordinates and displacement distance. The gyration center in 3D space was calculated from pursued coordinates and compared with the intersection in the side laser and crosshair. In this verification method, the rotation orbit and geometrical isocenter in the 3D space were confirmed, and visually evaluated. Thus, this method was effective in verifying the geometrical isocenter by solving the problem of the measurement precision and reproducibility.

AB - In recent years, development of advanced radiotherapy technology has resulted in an improvement in radiotherapy. Although the radiotherapy system has improved, the effect of the gap, the gyration center, and distortion of the rotation orbit cannot be neglected. Therefore, a verification method for a geometrical isocenter and rotation orbit in a three-dimension (3D) space is required. We developed a verification method for determination of the geometrical isocenter. In this method, the rotation of the gantry that applied the measured target from two directions was imaged and analyzed using animation pursuit analysis software. The measurement targets were pursued by analysis, and the rotation orbit of the target was visually evaluated from obtained coordinates and displacement distance. The gyration center in 3D space was calculated from pursued coordinates and compared with the intersection in the side laser and crosshair. In this verification method, the rotation orbit and geometrical isocenter in the 3D space were confirmed, and visually evaluated. Thus, this method was effective in verifying the geometrical isocenter by solving the problem of the measurement precision and reproducibility.

UR - http://www.scopus.com/inward/record.url?scp=84884302928&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884302928&partnerID=8YFLogxK

U2 - 10.6009/jjrt.2012_JSRT_68.11.1499

DO - 10.6009/jjrt.2012_JSRT_68.11.1499

M3 - Article

C2 - 23171772

AN - SCOPUS:84884302928

VL - 68

SP - 1499

EP - 1507

JO - Nippon Hoshasen Gijutsu Gakkai zasshi

JF - Nippon Hoshasen Gijutsu Gakkai zasshi

SN - 0369-4305

IS - 11

ER -