Evaluation of mechanical accuracy for couch-based tracking system (CBTS)

Suk Lee, Kyung Hwan Chang, Jand Bo Shim, Yuanjie Cao, Chang Ki Lee, Sam Ju Cho, Dae-Sik Yang, Young Je Park, Won Sup Yoon, Chul Yong Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This study evaluated the mechanical accuracy of an in-house-developed couch-based tracking system (CBTS) according to respiration data. The overall delay time of the CBTS was calculated, and the accuracy, reproducibility, and loading effect of the CBTS were evaluated according to the sinusoidal waveform and various respiratory motion data of real patients with and without a volunteer weighing 75kg. The root mean square (rms) error of the accuracy, the reproducibility, and the sagging measurements were calculated for the three axes (X, Y, and Z directions) of the CBTS. The overall delay time of the CBTS was 0.251 sec. The accuracy and reproducibility in the Z direction in real patient data were poor, as indicated by high rms errors. The results of the loading effect were within 1.0 mm in all directions. This novel CBTS has the potential for clinical application for tumor tracking in radiation therapy.

Original languageEnglish
Pages (from-to)157-169
Number of pages13
JournalJournal of Applied Clinical Medical Physics
Volume13
Issue number6
Publication statusPublished - 2012 Dec 1

Fingerprint

couches
Mean square error
Time delay
evaluation
Radiotherapy
Weighing
Tumors
root-mean-square errors
Volunteers
Respiration
time lag
respiration
Direction compound
Neoplasms
radiation therapy
waveforms
tumors

Keywords

  • Consistency
  • Couch
  • Delay time
  • Image-guided radiation therapy (IGRT)
  • Tracking

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiation
  • Instrumentation

Cite this

Evaluation of mechanical accuracy for couch-based tracking system (CBTS). / Lee, Suk; Chang, Kyung Hwan; Shim, Jand Bo; Cao, Yuanjie; Lee, Chang Ki; Cho, Sam Ju; Yang, Dae-Sik; Park, Young Je; Yoon, Won Sup; Kim, Chul Yong.

In: Journal of Applied Clinical Medical Physics, Vol. 13, No. 6, 01.12.2012, p. 157-169.

Research output: Contribution to journalArticle

Lee, Suk ; Chang, Kyung Hwan ; Shim, Jand Bo ; Cao, Yuanjie ; Lee, Chang Ki ; Cho, Sam Ju ; Yang, Dae-Sik ; Park, Young Je ; Yoon, Won Sup ; Kim, Chul Yong. / Evaluation of mechanical accuracy for couch-based tracking system (CBTS). In: Journal of Applied Clinical Medical Physics. 2012 ; Vol. 13, No. 6. pp. 157-169.
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