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Title: SU-E-T-125: Application of Jaw-Tracking Function in VMAT for Upper Thoracic Esophageal Cancer

Abstract

Purpose: To explore the effect of the Jaw-tracking with RapidArc(JT-RapidArc) plans for upper thoracic esophageal cancer. Methods: Treatment planning was designed by using RapidArc and JT-RapidArc techniques for 11 consecutive patients. The dose-volume histogram parameters of PTV and the organs at risk(OAR), conformity index(CI), heterogeneity index(HI), low dose volume of normal tissue(B-P) and monitor units(MUs) were compared between the different techniques. Results: JT-RapidArc plans provided the better coverage of PTV1(64) D98 and HI(P<0.05), lower MLD, D2 of PTV1(64) and PTV2(54), but no statistically difference in CI(P>0.05), which comparison with RapidArc plans. Plans with JT- RapidArc had lower Lung of V5, V10, V13, V20, V30, MLD(P<0.05); heart of V20, MLD(P<0.05); and B-P of V5, V10, V15, V20, V30(P<0.05); but no significantly different in Spinal cord and SC-PRV as compared with RapidArc plans. JT-RapidArc plans increaseed the MUs by 1%(P>0.05) as compared with RapidArc plans. Conclusion: All of the plans had met the requirements of clinical dosimetry. JT-RapidArc plans as compared with RapidArc plans, showing better part of target coverage, part of OARS(lung and heart) and heart and B-P sparing, which MUs was slightly increased. This work was sponsored by Shantou University Medical College Clinical Research Enhancement Initiative(NO.201424)

Authors:
; ; ; ;  [1]
  1. Cancer Hospital of Shantou University Medical College, Shantou, Guangdong (China)
Publication Date:
OSTI Identifier:
22545251
Resource Type:
Journal Article
Resource Relation:
Journal Name: Medical Physics; Journal Volume: 42; Journal Issue: 6; Other Information: (c) 2015 American Association of Physicists in Medicine; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; ANIMAL TISSUES; DOSIMETRY; ESOPHAGUS; HEALTH HAZARDS; HEART; LUNGS; NEOPLASMS; PATIENTS; RADIATION DOSES; RADIOTHERAPY

Citation Formats

Zhang, W, Chen, J, Zhai, T, Yan, L, and Chen, C. SU-E-T-125: Application of Jaw-Tracking Function in VMAT for Upper Thoracic Esophageal Cancer. United States: N. p., 2015. Web. doi:10.1118/1.4924486.
Zhang, W, Chen, J, Zhai, T, Yan, L, & Chen, C. SU-E-T-125: Application of Jaw-Tracking Function in VMAT for Upper Thoracic Esophageal Cancer. United States. doi:10.1118/1.4924486.
Zhang, W, Chen, J, Zhai, T, Yan, L, and Chen, C. Mon . "SU-E-T-125: Application of Jaw-Tracking Function in VMAT for Upper Thoracic Esophageal Cancer". United States. doi:10.1118/1.4924486.
@article{osti_22545251,
title = {SU-E-T-125: Application of Jaw-Tracking Function in VMAT for Upper Thoracic Esophageal Cancer},
author = {Zhang, W and Chen, J and Zhai, T and Yan, L and Chen, C},
abstractNote = {Purpose: To explore the effect of the Jaw-tracking with RapidArc(JT-RapidArc) plans for upper thoracic esophageal cancer. Methods: Treatment planning was designed by using RapidArc and JT-RapidArc techniques for 11 consecutive patients. The dose-volume histogram parameters of PTV and the organs at risk(OAR), conformity index(CI), heterogeneity index(HI), low dose volume of normal tissue(B-P) and monitor units(MUs) were compared between the different techniques. Results: JT-RapidArc plans provided the better coverage of PTV1(64) D98 and HI(P<0.05), lower MLD, D2 of PTV1(64) and PTV2(54), but no statistically difference in CI(P>0.05), which comparison with RapidArc plans. Plans with JT- RapidArc had lower Lung of V5, V10, V13, V20, V30, MLD(P<0.05); heart of V20, MLD(P<0.05); and B-P of V5, V10, V15, V20, V30(P<0.05); but no significantly different in Spinal cord and SC-PRV as compared with RapidArc plans. JT-RapidArc plans increaseed the MUs by 1%(P>0.05) as compared with RapidArc plans. Conclusion: All of the plans had met the requirements of clinical dosimetry. JT-RapidArc plans as compared with RapidArc plans, showing better part of target coverage, part of OARS(lung and heart) and heart and B-P sparing, which MUs was slightly increased. This work was sponsored by Shantou University Medical College Clinical Research Enhancement Initiative(NO.201424)},
doi = {10.1118/1.4924486},
journal = {Medical Physics},
number = 6,
volume = 42,
place = {United States},
year = {Mon Jun 15 00:00:00 EDT 2015},
month = {Mon Jun 15 00:00:00 EDT 2015}
}