The path to quality prostate seed implants.
نویسندگان
چکیده
© The Canadian Journal of UrologyTM; 20(5); October 2013 Address correspondence to Dr. Timothy N. Showalter, Department of Radiation Oncology, University of Virginia School of Medicine, 1215 Lee Street, Box 800383, Charlottesville, VA 22908 USA The path to quality prostate seed implants Xinglei Shen, MD,1 Timothy N. Showalter, MD2 1Department of Radiation Oncology, University of Kansas Cancer Medical Center, Kansas City, Kansas, USA 2Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, Virginia, USA Referring to the article published on pp. 6907-6912 in this issue
منابع مشابه
Prostate MRS in the presence of gold seed fiducial markers
MR Spectroscopy (MRS) has great potential for guiding radiotherapy of prostate cancer by identifying bulky and/or high grade tumors suitable for dose escalation (1,2). However, image guided therapy typically employs permanently implanted gold seed fiducial markers (GSFM), which aid in daily prostate localization prior to treatment. The impact of these gold seed markers on the quality of MRS is ...
متن کاملUnexpected Seed Migration in Prostate Brachytherapy Implants Coincident with Change in Seed Stranding Product
PURPOSE This study was undertaken to determine if significant seed migration occurred when our institution changed seed products by comparing patterns of seed migration in implants containing different stranding material. METHODS AND MATERIALS Day 0 and Day 30 CT scans were registered by the contoured prostate center of mass. An implant reconstruction program identified seeds on CT according ...
متن کاملSU-E-T-458: Radiobiological Comparison of Single and Dual-Isotope Prostate Seed Implants.
PURPOSE Several isotopes are available for low dose-rate brachytherapy of the prostate. Currently, most implants use a single isotope. However, the use of dual-isotope implants may yield an advantageous combination of characteristics such as half-life and relative biological effectiveness. However, the use of dual-isotope implants complicates treatment planning and quality assurance. Do the ben...
متن کاملThree-dimensional seed reconstruction for prostate brachytherapy using Hough trajectories.
In order to perform intra-operative or post-implant dosimetry in prostate brachytherapy, the 3D coordinates of the implanted radioactive seeds must be determined. Film or fluoroscopy based seed reconstruction techniques use back projection of x-ray data obtained at two or three x-ray positions. These methods, however, do not perform well when some of the seed images are undetected. To overcome ...
متن کاملFeasibility of calibrating elongated brachytherapy sources using a well-type ionization chamber.
Recently, elongated brachytherapy sources (active length >1 cm) have become commercially available for interstitial prostate implants. These sources were introduced to improve the quality of brachytherapy procedures by eliminating the migration and seed bunching associated with loose seed-type implants. However, the inability to calibrate elongated brachytherapy sources with the Wide-Angle Free...
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ورودعنوان ژورنال:
- The Canadian journal of urology
دوره 20 5 شماره
صفحات -
تاریخ انتشار 2013