Breast Radiotherapy Delineation Protocols

Thirty patient data sets were retrospectively evaluated for this study. These patients previously underwent breast radiotherapy between April 2010 and May 2011. Patients were treated in the supine position (14 left sided and 16 right sided) after breast conservation surgery. Patients were selected consecutively until 30 cases were accrued. Approval for the study was granted by South Western Sydney Human Research Ethics Committee in August 2011, and the study was conducted from September 2011 to February 2012.
The treatment planning CT data sets were acquired on a Siemens Somatom Sensation 4 (Siemens Medical Solutions, Germany) with 0.25 cm slice thickness. Delineation of the breasts, heart, lungs and spinal cord was completed by a senior radiation therapist with Focal v4.40 (Elekta AB, Stockholm, Sweden) and checked by a radiation oncologist. All delineation was completed according to the predetermined breast and heart delineation protocols.20 (link),21 (link)

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Batumalai V., Quinn A., Jameson M., Delaney G, & Holloway L. (2015). Imaging dose in breast radiotherapy: does breast size affect the dose to the organs at risk and the risk of secondary cancer to the contralateral breast?. Journal of Medical Radiation Sciences, 62(1), 32-39.

Publication 2015

Somatom Sensation 4

Breast Breast surgery Heart Human Lungs Patients Radiation Radiation oncologist Research ethics committee Spinal cord

Corresponding Organization : UNSW Sydney

Other organizations : University of Wollongong, Liverpool Hospital, Western Sydney University, University of Sydney

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Variable analysis

independent variables

Breast radiotherapy treatment position (supine)
Breast laterality (left-sided, right-sided)

dependent variables

Delineation of the breasts, heart, lungs and spinal cord

control variables

Patients selected consecutively until 30 cases were accrued
Treatment planning CT data sets acquired on a Siemens Somatom Sensation 4 with 0.25 cm slice thickness
Delineation of structures completed by a senior radiation therapist and checked by a radiation oncologist
Delineation completed according to predetermined breast and heart delineation protocols

controls

Positive controls: Not specified
Negative controls: Not specified

Annotations

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