Validation of Planning Target Volume Margins by Analyzing Intrafractional Localization Errors for 14 Prostate Cancer Patients Based on Three-Dimensional Cross-Correlation between the Prostate Images of Planning CT and Intrafraction Cone-Beam CT during Volumetric Modulated Arc Therapy
Joint Authors
Yoda, Kiyoshi
Haga, Akihiro
Sasaki, Katsutake
Nakagawa, Keiichi
Igaki, Hiroshi
Shiraishi, Kenshiro
Ohtomo, Kuni
Sakumi, Akira
Yamamoto, Kentaro
Futaguchi, Masahiko
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-22
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Time-averaged intreatment prostate localization errors were calculated, for the first time, by three-dimensional prostate image cross-correlation between planning CT and intrafraction kilovoltage cone-beam CT (CBCT) during volumetric modulated arc therapy (VMAT).
The intrafraction CBCT volume was reconstructed by an inhouse software after acquiring cine-mode projection images during VMAT delivery.
Subsequently, the margin between a clinical target volume and a planning target volume (PTV) was obtained by applying the van Herk and variant formulas using the calculated localization errors.
The resulting PTV margins were approximately 2 mm in lateral direction and 4 mm in craniocaudal and anteroposterior directions, which are consistent with the margin prescription employed in our facility.
American Psychological Association (APA)
Shiraishi, Kenshiro& Futaguchi, Masahiko& Haga, Akihiro& Sakumi, Akira& Sasaki, Katsutake& Yamamoto, Kentaro…[et al.]. 2014. Validation of Planning Target Volume Margins by Analyzing Intrafractional Localization Errors for 14 Prostate Cancer Patients Based on Three-Dimensional Cross-Correlation between the Prostate Images of Planning CT and Intrafraction Cone-Beam CT during Volumetric Modulated Arc Therapy. BioMed Research International،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-511636
Modern Language Association (MLA)
Shiraishi, Kenshiro…[et al.]. Validation of Planning Target Volume Margins by Analyzing Intrafractional Localization Errors for 14 Prostate Cancer Patients Based on Three-Dimensional Cross-Correlation between the Prostate Images of Planning CT and Intrafraction Cone-Beam CT during Volumetric Modulated Arc Therapy. BioMed Research International No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-511636
American Medical Association (AMA)
Shiraishi, Kenshiro& Futaguchi, Masahiko& Haga, Akihiro& Sakumi, Akira& Sasaki, Katsutake& Yamamoto, Kentaro…[et al.]. Validation of Planning Target Volume Margins by Analyzing Intrafractional Localization Errors for 14 Prostate Cancer Patients Based on Three-Dimensional Cross-Correlation between the Prostate Images of Planning CT and Intrafraction Cone-Beam CT during Volumetric Modulated Arc Therapy. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-511636
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511636