Synonyms Prostate seed implants (PSI) Definition A low dose rate (LDR) permanent prostate implant is a brachytherapy procedure in which radioactive seeds are permanently implanted into the prostate to deliver radiation to treat low-grade prostate cancers. Background Brachytherapy is a technique for ...
Purpose: To evaluate the changes in prostate volume associated with radioactive seed implantation and identify factors that influence prostate swelling. Methods and Materials: Between June 1997 and August 1999, 161 patients implanted for prostate carcinoma at the University of California, San Francisco,...
Among the treatment modalities for prostate cancer, permanent 125I radioactive seeds implant is one of the best alternatives in order to attain a local deposition of the radiation dose and a high degree of normal tissue sparing [1]. This prostate radiotherapy procedure makes use of a transrectal...
Terk MD, Stock RG, Stone NN: Identification of patients at increased risk for prolonged urinary retention following radioactive seed implantation of the prostate. J Urol 1998, 160: 1379-1382. Article CAS PubMed Google Scholar Roeloffzen EM, Monninkhof EM, Battermann JJ, van Roermund JG,...
While there have not been any controlled, prospective, randomized trials of sufficient power to compare the various local therapies, based on the current available data, the three commonly used local modalities, surgery, and external beam radiation therapy and brachytherapy (radioactive seed implant),...
Seed implant brachytherapy has been widely accepted as a treatment option for localised T1-T2 prostate tumours, a technique in which radioactive sources (seeds) are implanted permanently in the prostate gland. Apart from some patient-related factors such as PSA, Gleason score and clinical stage, ...
Dosimetric effects of needle divergence in prostate seed implant using 125I and 103Pd radioactive seeds. In prostate seed implants, radioactive seeds are implanted into the prostate through a guiding needle with the help of a template and real-time imaging. Th... S Nath,Z Chen,N Yue,......
as well as pretreatment measures including the materials needed for a proper implant. The procedure is mostly performed under spinal or saddle block anaesthesia and may take 45 till 90 min, depending on the technique. Placing of the seeds can be done with single seeds (Mick applicator) or stra...
Now in the Journal of Urology 2006, 175; 1353-58, comes a report of an implant of histrelin which suppresses testosterone and lutenising hormone for up to one year. Suppression for the 52 weeks was achieved in 99 per cent of cases, and the PSA scores decreased rapidly (down by a mean...
Prostate brachytherapy involves the accurate placement of radioactive materials, known as seeds, into the prostate gland according to a predetermined dosimetry plan. FIG. 1 shows a template-guided implant needle 10 inserted into the prostate gland 12 under the guidance of an ultrasound probe 14, wh...