Computer-assisted radiation treatment planning system for determination of beam directions based on similar cases in a database for stereotactic body radiotherapy

Taiki Magome, Hidetaka Arimura, Yoshiyuki Shioyama, Asumi Mizoguchi, Chiaki Tokunaga, Katsumasa Nakamura, Hiroshi Honda, Masafumi Ohki, Fukai Toyofuku, Hideki Hirata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Similar treatment plans or similar cases in radiotherapy treatment planning (RTP) databases of senior experienced planners could be helpful or educational for treatment planners who have few experiences of stereotactic body radiotherapy (SBRT). The aim of this study was to investigate the feasibility of beam arrangements determined using similar cases in a RTP database including plans designed by experienced treatment planners. Similar cases were automatically selected based on geometrical features and planning evaluation indices from 81 cases with lung cancer who received SBRT. First, the RTP database was searched for the five most similar cases based on geometrical features related to the location, size, and shape of the planning target volume, lung, and spinal cord. Second, the five beam arrangements of an objective case were automatically determined by registering five similar cases to the objective case with respect to lung regions by means of a linear registration technique. For evaluation of the beam arrangements, five plans were designed by applying the beam arrangements determined in the second step to the objective case. The most usable beam arrangement was selected by sorting the five plans based on 11 planning evaluation indices including tumor control probability and normal tissue complication probability. We applied the proposed two-step method to 10 test cases by using an RTP database of 81 cases with lung cancer, and compared the 11 planning evaluation indices between the original plan and the corresponding most usable similar-case-based plan. As a result, there were no statistically significant differences between the original beam arrangements and the most usable similar-case-based beam arrangements (P > 0.05) in terms of the 10 planning evaluation indices. The proposed method suggested usable beam arrangements with little difference from cases in the RTP database, and thus it could be employed as an educational tool for less experienced treatment planners.

Original languageEnglish
Title of host publicationPhotonic Crystal Materials and Devices X
Volume8425
DOIs
Publication statusPublished - 2012
EventPhotonic Crystal Materials and Devices X - Brussels, Belgium
Duration: Apr 16 2012Apr 19 2012

Other

OtherPhotonic Crystal Materials and Devices X
CountryBelgium
CityBrussels
Period4/16/124/19/12

Fingerprint

Radiotherapy
planning
radiation therapy
Radiation
Planning
Arrangement
radiation
lungs
evaluation
Evaluation
Lung Cancer
Lung
cancer
Direction compound
spinal cord
Two-step Method
Complications
classifying
Sorting
Registration

All Science Journal Classification (ASJC) codes

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Computer-assisted radiation treatment planning system for determination of beam directions based on similar cases in a database for stereotactic body radiotherapy. / Magome, Taiki; Arimura, Hidetaka; Shioyama, Yoshiyuki; Mizoguchi, Asumi; Tokunaga, Chiaki; Nakamura, Katsumasa; Honda, Hiroshi; Ohki, Masafumi; Toyofuku, Fukai; Hirata, Hideki.

Photonic Crystal Materials and Devices X. Vol. 8425 2012. 83190O.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Magome, T, Arimura, H, Shioyama, Y, Mizoguchi, A, Tokunaga, C, Nakamura, K, Honda, H, Ohki, M, Toyofuku, F & Hirata, H 2012, Computer-assisted radiation treatment planning system for determination of beam directions based on similar cases in a database for stereotactic body radiotherapy. in Photonic Crystal Materials and Devices X. vol. 8425, 83190O, Photonic Crystal Materials and Devices X, Brussels, Belgium, 4/16/12. https://doi.org/10.1117/12.911139
Magome, Taiki ; Arimura, Hidetaka ; Shioyama, Yoshiyuki ; Mizoguchi, Asumi ; Tokunaga, Chiaki ; Nakamura, Katsumasa ; Honda, Hiroshi ; Ohki, Masafumi ; Toyofuku, Fukai ; Hirata, Hideki. / Computer-assisted radiation treatment planning system for determination of beam directions based on similar cases in a database for stereotactic body radiotherapy. Photonic Crystal Materials and Devices X. Vol. 8425 2012.
@inproceedings{a8e72696b2de46679be3645fa88266b3,
title = "Computer-assisted radiation treatment planning system for determination of beam directions based on similar cases in a database for stereotactic body radiotherapy",
abstract = "Similar treatment plans or similar cases in radiotherapy treatment planning (RTP) databases of senior experienced planners could be helpful or educational for treatment planners who have few experiences of stereotactic body radiotherapy (SBRT). The aim of this study was to investigate the feasibility of beam arrangements determined using similar cases in a RTP database including plans designed by experienced treatment planners. Similar cases were automatically selected based on geometrical features and planning evaluation indices from 81 cases with lung cancer who received SBRT. First, the RTP database was searched for the five most similar cases based on geometrical features related to the location, size, and shape of the planning target volume, lung, and spinal cord. Second, the five beam arrangements of an objective case were automatically determined by registering five similar cases to the objective case with respect to lung regions by means of a linear registration technique. For evaluation of the beam arrangements, five plans were designed by applying the beam arrangements determined in the second step to the objective case. The most usable beam arrangement was selected by sorting the five plans based on 11 planning evaluation indices including tumor control probability and normal tissue complication probability. We applied the proposed two-step method to 10 test cases by using an RTP database of 81 cases with lung cancer, and compared the 11 planning evaluation indices between the original plan and the corresponding most usable similar-case-based plan. As a result, there were no statistically significant differences between the original beam arrangements and the most usable similar-case-based beam arrangements (P > 0.05) in terms of the 10 planning evaluation indices. The proposed method suggested usable beam arrangements with little difference from cases in the RTP database, and thus it could be employed as an educational tool for less experienced treatment planners.",
author = "Taiki Magome and Hidetaka Arimura and Yoshiyuki Shioyama and Asumi Mizoguchi and Chiaki Tokunaga and Katsumasa Nakamura and Hiroshi Honda and Masafumi Ohki and Fukai Toyofuku and Hideki Hirata",
year = "2012",
doi = "10.1117/12.911139",
language = "English",
isbn = "9780819491176",
volume = "8425",
booktitle = "Photonic Crystal Materials and Devices X",

}

TY - GEN

T1 - Computer-assisted radiation treatment planning system for determination of beam directions based on similar cases in a database for stereotactic body radiotherapy

AU - Magome, Taiki

AU - Arimura, Hidetaka

AU - Shioyama, Yoshiyuki

AU - Mizoguchi, Asumi

AU - Tokunaga, Chiaki

AU - Nakamura, Katsumasa

AU - Honda, Hiroshi

AU - Ohki, Masafumi

AU - Toyofuku, Fukai

AU - Hirata, Hideki

PY - 2012

Y1 - 2012

N2 - Similar treatment plans or similar cases in radiotherapy treatment planning (RTP) databases of senior experienced planners could be helpful or educational for treatment planners who have few experiences of stereotactic body radiotherapy (SBRT). The aim of this study was to investigate the feasibility of beam arrangements determined using similar cases in a RTP database including plans designed by experienced treatment planners. Similar cases were automatically selected based on geometrical features and planning evaluation indices from 81 cases with lung cancer who received SBRT. First, the RTP database was searched for the five most similar cases based on geometrical features related to the location, size, and shape of the planning target volume, lung, and spinal cord. Second, the five beam arrangements of an objective case were automatically determined by registering five similar cases to the objective case with respect to lung regions by means of a linear registration technique. For evaluation of the beam arrangements, five plans were designed by applying the beam arrangements determined in the second step to the objective case. The most usable beam arrangement was selected by sorting the five plans based on 11 planning evaluation indices including tumor control probability and normal tissue complication probability. We applied the proposed two-step method to 10 test cases by using an RTP database of 81 cases with lung cancer, and compared the 11 planning evaluation indices between the original plan and the corresponding most usable similar-case-based plan. As a result, there were no statistically significant differences between the original beam arrangements and the most usable similar-case-based beam arrangements (P > 0.05) in terms of the 10 planning evaluation indices. The proposed method suggested usable beam arrangements with little difference from cases in the RTP database, and thus it could be employed as an educational tool for less experienced treatment planners.

AB - Similar treatment plans or similar cases in radiotherapy treatment planning (RTP) databases of senior experienced planners could be helpful or educational for treatment planners who have few experiences of stereotactic body radiotherapy (SBRT). The aim of this study was to investigate the feasibility of beam arrangements determined using similar cases in a RTP database including plans designed by experienced treatment planners. Similar cases were automatically selected based on geometrical features and planning evaluation indices from 81 cases with lung cancer who received SBRT. First, the RTP database was searched for the five most similar cases based on geometrical features related to the location, size, and shape of the planning target volume, lung, and spinal cord. Second, the five beam arrangements of an objective case were automatically determined by registering five similar cases to the objective case with respect to lung regions by means of a linear registration technique. For evaluation of the beam arrangements, five plans were designed by applying the beam arrangements determined in the second step to the objective case. The most usable beam arrangement was selected by sorting the five plans based on 11 planning evaluation indices including tumor control probability and normal tissue complication probability. We applied the proposed two-step method to 10 test cases by using an RTP database of 81 cases with lung cancer, and compared the 11 planning evaluation indices between the original plan and the corresponding most usable similar-case-based plan. As a result, there were no statistically significant differences between the original beam arrangements and the most usable similar-case-based beam arrangements (P > 0.05) in terms of the 10 planning evaluation indices. The proposed method suggested usable beam arrangements with little difference from cases in the RTP database, and thus it could be employed as an educational tool for less experienced treatment planners.

UR - http://www.scopus.com/inward/record.url?scp=84861895606&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861895606&partnerID=8YFLogxK

U2 - 10.1117/12.911139

DO - 10.1117/12.911139

M3 - Conference contribution

AN - SCOPUS:84861895606

SN - 9780819491176

VL - 8425

BT - Photonic Crystal Materials and Devices X

ER -