Matched-pair analysis and dosimetric variations of two types of software for interstitial permanent brachytherapy for prostate cancer
Journal Article
·
· Medical Dosimetry
- Department of Radiology, Kitasato University School of Medicine, Sagamihara, Kanagawa (Japan)
- Department of Radiology, Iwate Medical University, Morioka, Iwate (Japan)
- Department of Urology, Kitasato University School of Medicine, Sagamihara, Kanagawa (Japan)
- Department of Urology, Iwate Medical University, Morioka, Iwate (Japan)
- Department of Radiation Oncology, The Methodist Hospital, Houston, TX (United States)
- Division of Radiation Oncology, Kitasato University Hospital, Sagamihara, Kanagawa (Japan)
The purpose of this study was to determine whether identical dosimetric results could be achieved using different planning software for permanent interstitial brachytherapy for prostate cancer. Data from 492 patients treated with brachytherapy were used for matched-pair analysis. Interplant and Variseed were used as software for ultrasound-based treatment planning. Institution, neoadjuvant hormonal therapy, prostate volume, and source strength were used for factors to match the 2 groups. The study population comprised of 126 patients with treatment planning using Interplant software and 127 matched patients using Variseed software. Dosimetric results were compared between the 2 groups. The Variseed group showed significantly higher values for dose covering 90% of prostate volume (pD90), prostate volume covered by 150% of prescription dose (pV150), and dose covering 30% of the urethra (uD30) compared with the Interplant group. Our results showed that use of different software could lead to different dosimetric results, which might affect the clinical outcomes.
- OSTI ID:
- 22130384
- Journal Information:
- Medical Dosimetry, Journal Name: Medical Dosimetry Journal Issue: 1 Vol. 37; ISSN 0958-3947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Is the Use of a Surrogate Urethra an Option in Prostate High-Dose-Rate Brachytherapy?
Investigating the dosimetric and tumor control consequences of prostate seed loss and migration
SU-E-T-620: Dosimetric Compliance Study for a New Prostate Protocol of Combined High Dose Rate Brachytherapy and Stereotactic Body Radiotherapy
Journal Article
·
Thu May 01 00:00:00 EDT 2008
· International Journal of Radiation Oncology, Biology and Physics
·
OSTI ID:21124179
Investigating the dosimetric and tumor control consequences of prostate seed loss and migration
Journal Article
·
Fri Jun 15 00:00:00 EDT 2012
· Medical Physics
·
OSTI ID:22098877
SU-E-T-620: Dosimetric Compliance Study for a New Prostate Protocol of Combined High Dose Rate Brachytherapy and Stereotactic Body Radiotherapy
Journal Article
·
Sun Jun 15 00:00:00 EDT 2014
· Medical Physics
·
OSTI ID:22402225