103: Appropriate Timing for Post-Implant Dosimetry in Permanent Breast Seed Implant (PBSI)

Adjuvant stereotactic permanent seed breast implant: a boost series in view of partial breast irradiation.

PURPOSE The aim of this study was to use permanent seed implants in the breast and describe our experience with 15 cases, using iodine seed implants as a tumor bed boost. METHODS AND MATERIALS Breasts were fixed with a thermoplastic sheet, a template bridge applied, the thorax scanned and the images rotated to be perpendicular to the implant axis. Skin, heart, and lung were delineated. A prep...

Optimized planning for intraoperative planar permanent‐seed implant

We describe a fast, PC-based optimization planning system for a planar permanent-seed implant. Sites where this system is applicable include brain, lung, and head and neck. The system described here allows placing ribbons of different strengths and of different lengths along and across the implant plane. The program takes full advantage of the availability of different source strengths in inven...

A Feasibility Study of Ultra-short Echo Time Mri for Positive Contrast Visualization of Prostate Brachytherapy Permanent Seed Implants for Post-implant Dosimetry

ii ACKNOWLEDGMENTS I thank Dr. Jiang Du for his assistance with the UTE protocol used in this work. I also thank Randy Deen, MR technologist at PBRC, for his frequent assistance with data collection and his willingness to lend his knowledge and time. I express my gratefulness to my advisor, Dr. Kip Matthews, for sharing his expertise and for his attention to detail each time he reviewed a draft...

Case series analysis of post-brachytherapy prostate edema and its relevance to post-implant dosimetry. Post-implant prostate edema and dosimetry

PURPOSE We evaluated the post-operative pattern of prostate volume (PV) changes following prostate brachytherapy (PB) and analyzed variables which affect swelling. MATERIAL AND METHODS Twenty-nine patients treated with brachytherapy (14) or combined brachytherapy and external beam radiotherapy modality (15) underwent pre- and post-implant computed tomography (CT). Prostate volume measurements...

Seed implant brachytherapy for prostate cancer.