Analysis of output factors with various detectors in small-field electron-beam radiotherapy

Sang Hoon Lee, Juree Kim, Yoon Seok Nam, SamJu Cho, Sooil Kwon, Suk Lee, Jang Bo Shim, Chul Yong Kim, Chul Kee Min, Kwang Hwan Cho, HyunDo Huh

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

To identify an appropriate detector for the precise measurement of small-field electron-beam radiotherapy, we categorized cutout lead blocks into three types by size and shape. We measured the cutout factor for each type of cutout block by using various detectors that are commonly used clinically and then calculated the monitor unit value by using the Monte Carlo algorithm. We repeated each experiment more than five times and averaged the data. Comparisons of the monitor unit values from the Monte Carlo algorithm showed that the output factor measured by using the EDGE detector was relatively accurate, with less than 1% deviation. Data for the other detectors indicated deviations of 3 ~ 15%. It is very important to correctly calibrate the output factor for the treatment of keloids using electron beam radiotherapy due to the small and narrow field size. Use of a special detector with good reproducibility and excellent spatial resolution or calculation of the monitor unit value by using the Monte Carlo algorithm is recommended.

Original languageEnglish
Pages (from-to)875-880
Number of pages6
JournalJournal of the Korean Physical Society
Volume60
Issue number5
DOIs
Publication statusPublished - 2012 Mar 1

Fingerprint

radiation therapy
electron beams
output
detectors
monitors
deviation
spatial resolution

Keywords

  • Electron beam radiotherapy
  • Keloids
  • Monte Carlo algorithm
  • Output factor
  • Small field

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Analysis of output factors with various detectors in small-field electron-beam radiotherapy. / Lee, Sang Hoon; Kim, Juree; Nam, Yoon Seok; Cho, SamJu; Kwon, Sooil; Lee, Suk; Shim, Jang Bo; Kim, Chul Yong; Min, Chul Kee; Cho, Kwang Hwan; Huh, HyunDo.

In: Journal of the Korean Physical Society, Vol. 60, No. 5, 01.03.2012, p. 875-880.

Research output: Contribution to journalArticle

Lee, Sang Hoon ; Kim, Juree ; Nam, Yoon Seok ; Cho, SamJu ; Kwon, Sooil ; Lee, Suk ; Shim, Jang Bo ; Kim, Chul Yong ; Min, Chul Kee ; Cho, Kwang Hwan ; Huh, HyunDo. / Analysis of output factors with various detectors in small-field electron-beam radiotherapy. In: Journal of the Korean Physical Society. 2012 ; Vol. 60, No. 5. pp. 875-880.
@article{dfb836cf22f54477ad2a5a020b48fe65,
title = "Analysis of output factors with various detectors in small-field electron-beam radiotherapy",
abstract = "To identify an appropriate detector for the precise measurement of small-field electron-beam radiotherapy, we categorized cutout lead blocks into three types by size and shape. We measured the cutout factor for each type of cutout block by using various detectors that are commonly used clinically and then calculated the monitor unit value by using the Monte Carlo algorithm. We repeated each experiment more than five times and averaged the data. Comparisons of the monitor unit values from the Monte Carlo algorithm showed that the output factor measured by using the EDGE detector was relatively accurate, with less than 1{\%} deviation. Data for the other detectors indicated deviations of 3 ~ 15{\%}. It is very important to correctly calibrate the output factor for the treatment of keloids using electron beam radiotherapy due to the small and narrow field size. Use of a special detector with good reproducibility and excellent spatial resolution or calculation of the monitor unit value by using the Monte Carlo algorithm is recommended.",
keywords = "Electron beam radiotherapy, Keloids, Monte Carlo algorithm, Output factor, Small field",
author = "Lee, {Sang Hoon} and Juree Kim and Nam, {Yoon Seok} and SamJu Cho and Sooil Kwon and Suk Lee and Shim, {Jang Bo} and Kim, {Chul Yong} and Min, {Chul Kee} and Cho, {Kwang Hwan} and HyunDo Huh",
year = "2012",
month = "3",
day = "1",
doi = "10.3938/jkps.60.875",
language = "English",
volume = "60",
pages = "875--880",
journal = "Journal of the Korean Physical Society",
issn = "0374-4884",
publisher = "Korean Physical Society",
number = "5",

}

TY - JOUR

T1 - Analysis of output factors with various detectors in small-field electron-beam radiotherapy

AU - Lee, Sang Hoon

AU - Kim, Juree

AU - Nam, Yoon Seok

AU - Cho, SamJu

AU - Kwon, Sooil

AU - Lee, Suk

AU - Shim, Jang Bo

AU - Kim, Chul Yong

AU - Min, Chul Kee

AU - Cho, Kwang Hwan

AU - Huh, HyunDo

PY - 2012/3/1

Y1 - 2012/3/1

N2 - To identify an appropriate detector for the precise measurement of small-field electron-beam radiotherapy, we categorized cutout lead blocks into three types by size and shape. We measured the cutout factor for each type of cutout block by using various detectors that are commonly used clinically and then calculated the monitor unit value by using the Monte Carlo algorithm. We repeated each experiment more than five times and averaged the data. Comparisons of the monitor unit values from the Monte Carlo algorithm showed that the output factor measured by using the EDGE detector was relatively accurate, with less than 1% deviation. Data for the other detectors indicated deviations of 3 ~ 15%. It is very important to correctly calibrate the output factor for the treatment of keloids using electron beam radiotherapy due to the small and narrow field size. Use of a special detector with good reproducibility and excellent spatial resolution or calculation of the monitor unit value by using the Monte Carlo algorithm is recommended.

AB - To identify an appropriate detector for the precise measurement of small-field electron-beam radiotherapy, we categorized cutout lead blocks into three types by size and shape. We measured the cutout factor for each type of cutout block by using various detectors that are commonly used clinically and then calculated the monitor unit value by using the Monte Carlo algorithm. We repeated each experiment more than five times and averaged the data. Comparisons of the monitor unit values from the Monte Carlo algorithm showed that the output factor measured by using the EDGE detector was relatively accurate, with less than 1% deviation. Data for the other detectors indicated deviations of 3 ~ 15%. It is very important to correctly calibrate the output factor for the treatment of keloids using electron beam radiotherapy due to the small and narrow field size. Use of a special detector with good reproducibility and excellent spatial resolution or calculation of the monitor unit value by using the Monte Carlo algorithm is recommended.

KW - Electron beam radiotherapy

KW - Keloids

KW - Monte Carlo algorithm

KW - Output factor

KW - Small field

UR - http://www.scopus.com/inward/record.url?scp=84859966435&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859966435&partnerID=8YFLogxK

U2 - 10.3938/jkps.60.875

DO - 10.3938/jkps.60.875

M3 - Article

AN - SCOPUS:84859966435

VL - 60

SP - 875

EP - 880

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

SN - 0374-4884

IS - 5

ER -