Inverse planning optimization for hybrid prostate permanent-seed implant brachytherapy plans using two source strengths

Inverse planning optimization for hybrid prostate permanent‐seed implant brachytherapy plans using two source strengths

The purpose is to demonstrate the ability to generate clinically acceptable prostate permanent seed implant plans using two seed types which are identical except for their activity. The IPSA inverse planning algorithms were modified to include multiple dose matrices for the calculation of dose from different sources, and a selection algorithm was implemented to allow for the swapping of source ...

Seed implant brachytherapy for prostate cancer.

Rectal injury during permanent seed implantation for prostate brachytherapy.

Serious complications have not been previously reported during seed implantation for prostate brachytherapy. We present an unreported case of rectal injury caused by an ultrasound probe. A 67-year-old male presented with a serum prostate-specific antigen level of 5.50 ng/ml, a Gleason score of 7 (3 + 4) and clinical T2a adenocarcinoma of the prostate. A transperineal permanent prostate brachyth...

Ultrasound Image-guided Robotic Brachytherapy Systems for Prostate Seed Implant

In image-guided brachytherapy (IGBT), accurate percutaneous intervention of needle and precise placement radiation sources are challenge tasks. In traditional prostate brachytherapy, needles are introduced through fixed, parallel holes of a template where the maneuverability of the needle is extremely limited. The accuracy and consistency of needle placement and seed delivery is subject to vari...

Using PSO algorithm optimization for planning 103Pd seeds brachytherapy positions

Radiation therapy, is one of the treatments for cancer. Brachytherapy is a radiotherapeutic technique that a sealed radiation source is placed inside or next to the tissue and has become a mainstream treatment option for cancer. Achieving maximum dose to the gland as well as minimum injury to the adjacent tissues is a basic principle in radiation therapy. Sources configuration must be designed ...