Oral & Poster Presentation – Physics Abstracts Archive

UK & Ireland Prostate Brachytherapy Conference 2016

Abstract number 1

MRI based pre-planning method for I-125 seed “one-step” implantation 

Inchley D*; Anderson C*; Lowe G*; Alonzi R*
*Mount Vernon Cancer Centre 

ABSTRACT: There are several different ways of performing I-125 seed implantation employed by centres throughout the UK. Many centres perform an outpatient ultrasound based volume assessment, where length, width and height of the gland are measured and the volume is calculated. The number of seeds ordered is then based on this estimation of volume. At least one manufacturer offers a class solution based on 5 measurements of prostate dimensions using ultrasound imaging. At Mount Vernon, we wanted to develop a method for performing a “one-step” I-125 seed implantation without having an additional patient visit to hospital. We have developed a technique which uses the diagnostic MR scan and the new MR re-sampling feature in Variseed 9.0, to create a more personalised seed order for each patient, which can then be implanted as a one-step technique. 

This talk will discuss this technique, its benefits and pitfalls, and our experience to date.