The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
표적장기에 선량을 조사하는 강도변조방사선치료(IMRT)는 방사선치료계획시스템(RTPS)을 이용해 조사선량을 계산한다. RTPS로 계획된 선량 분포가 2차원 검출기로 측정한 데이터와 동일한지 검증하여 조사 품질을 보장합니다. 실제 조사선량의 3차원 분포는 복잡하게 퍼져 있어 RTPS와는 다르다. 따라서 RTPS뿐만 아니라 실제 조사량 분포를 이용하여 평가하는 것이 바람직하다. 본 논문에서는 조사선량 분포의 선량-체적 히스토그램(DVH) 평가를 수행하기 위해 2차원 선량 검출기에서 희박하게 측정된 방사형 데이터를 이용하여 RTPS의 선량 분포를 보정하는 방법을 제안합니다. 그리고 조사량 분포에 대한 DVH 평가를 수행하여 제안된 방법이 고정밀 DVH 평가에 기여함을 보여줍니다. 실험 결과는 추정치가 2D 검출기의 측정 데이터와 잘 일치하고 추정치의 피크 신호 대 잡음비와 구조적 유사성 지수가 RTPS보다 더 정확하다는 것을 보여줍니다. 따라서 제한된 관찰 방향에서 측정된 데이터를 이용하여 실제 조사선량 분포를 평가할 수 있는 가능성을 제시한다.
Yasushi ONO
Tottori University,Tottori University Hospital
Katsuya KONDO
Tottori University
Kazu MISHIBA
Tottori University
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부
Yasushi ONO, Katsuya KONDO, Kazu MISHIBA, "Dose-Volume Histogram Evaluations Using Sparsely Measured Radial Data from Two-Dimensional Dose Detectors" in IEICE TRANSACTIONS on Fundamentals,
vol. E101-A, no. 11, pp. 1993-1998, November 2018, doi: 10.1587/transfun.E101.A.1993.
Abstract: Intensity modulated radiation therapy (IMRT), which irradiates doses to a target organ, calculates the irradiation dose using the radiation treatment planning system (RTPS). The irradiation quality is ensured by verifying that the dose distribution planned by RTPS is the same as the data measured by two-dimensional (2D) detectors. Since an actual three-dimensional (3D) distribution of irradiated dose spreads complicatedly, it is different from that of RTPS. Therefore, it is preferable to evaluate by using not only RTPS, but also actual irradiation dose distribution. In this paper, in order to perform a dose-volume histogram (DVH) evaluation of the irradiation dose distribution, we propose a method of correcting the dose distribution of RTPS by using sparsely measured radial data from 2D dose detectors. And we perform a DVH evaluation of irradiation dose distribution and we show that the proposed method contributes to high-precision DVH evaluation. The experimental results show that the estimates are in good agreement with the measured data from the 2D detectors and that the peak signal to noise ratio and the structural similarity indexes of the estimates are more accurate than those of RTPS. Therefore, we present the possibility of an evaluation of the actual irradiation dose distribution using measured data in a limited observation direction.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E101.A.1993/_p
부
@ARTICLE{e101-a_11_1993,
author={Yasushi ONO, Katsuya KONDO, Kazu MISHIBA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Dose-Volume Histogram Evaluations Using Sparsely Measured Radial Data from Two-Dimensional Dose Detectors},
year={2018},
volume={E101-A},
number={11},
pages={1993-1998},
abstract={Intensity modulated radiation therapy (IMRT), which irradiates doses to a target organ, calculates the irradiation dose using the radiation treatment planning system (RTPS). The irradiation quality is ensured by verifying that the dose distribution planned by RTPS is the same as the data measured by two-dimensional (2D) detectors. Since an actual three-dimensional (3D) distribution of irradiated dose spreads complicatedly, it is different from that of RTPS. Therefore, it is preferable to evaluate by using not only RTPS, but also actual irradiation dose distribution. In this paper, in order to perform a dose-volume histogram (DVH) evaluation of the irradiation dose distribution, we propose a method of correcting the dose distribution of RTPS by using sparsely measured radial data from 2D dose detectors. And we perform a DVH evaluation of irradiation dose distribution and we show that the proposed method contributes to high-precision DVH evaluation. The experimental results show that the estimates are in good agreement with the measured data from the 2D detectors and that the peak signal to noise ratio and the structural similarity indexes of the estimates are more accurate than those of RTPS. Therefore, we present the possibility of an evaluation of the actual irradiation dose distribution using measured data in a limited observation direction.},
keywords={},
doi={10.1587/transfun.E101.A.1993},
ISSN={1745-1337},
month={November},}
부
TY - JOUR
TI - Dose-Volume Histogram Evaluations Using Sparsely Measured Radial Data from Two-Dimensional Dose Detectors
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1993
EP - 1998
AU - Yasushi ONO
AU - Katsuya KONDO
AU - Kazu MISHIBA
PY - 2018
DO - 10.1587/transfun.E101.A.1993
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E101-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2018
AB - Intensity modulated radiation therapy (IMRT), which irradiates doses to a target organ, calculates the irradiation dose using the radiation treatment planning system (RTPS). The irradiation quality is ensured by verifying that the dose distribution planned by RTPS is the same as the data measured by two-dimensional (2D) detectors. Since an actual three-dimensional (3D) distribution of irradiated dose spreads complicatedly, it is different from that of RTPS. Therefore, it is preferable to evaluate by using not only RTPS, but also actual irradiation dose distribution. In this paper, in order to perform a dose-volume histogram (DVH) evaluation of the irradiation dose distribution, we propose a method of correcting the dose distribution of RTPS by using sparsely measured radial data from 2D dose detectors. And we perform a DVH evaluation of irradiation dose distribution and we show that the proposed method contributes to high-precision DVH evaluation. The experimental results show that the estimates are in good agreement with the measured data from the 2D detectors and that the peak signal to noise ratio and the structural similarity indexes of the estimates are more accurate than those of RTPS. Therefore, we present the possibility of an evaluation of the actual irradiation dose distribution using measured data in a limited observation direction.
ER -