Abstract

Purpose
The seed implant technique at our institution involves using a published nomogram for seed ordering based on CT based volume studies of the prostate. Ultrasound volume studies are subsequently used in the operating room for planning a modified peripheral loading with urethra sparing seed implant. The purpose of this study is to determine the appropriate modality for prostate volume measurement and creating an updated nomogram for intra‐operative planning specific to our technique for pd‐103 brachytherapy for efficient seed ordering.
Methods
Prostate volumes based on pre‐implant CT (Pre‐CT), intra‐operative ultrasound (TRUS), and post‐implant CT (post‐CT) studies as well as the total airkerma strength (AKS) of the implants were analyzed for 135 seed implant cases (69 monotherapy, 66 boost). Regression analysis was performed to derive the relationship between the total AKS and pre‐CT …

Date

2014

Authors

S Narayanan, P Cho

Journal

Medical Physics

Volume

41

Issue

6Part15

Pages

289-289

Publisher

American Association of Physicists in Medicine