A unique approach to high-dose-rate vaginal mold brachytherapy of gynecologic malignancies.

Abstract:

PURPOSE:Patients with cervical and vaginal cancer sometimes have a less straightforward approach for choice of brachytherapy treatment owing to the tumor's location and clinical presentation. The staff at Royal Brisbane & Women's Hospital in Queensland, Australia, is trying to solve this problem by the use of an old technique in a new approach called vaginal molds. With a patient-specific vaginal mold, the appearance of the applicator and the dose distribution can be customized to provide an optimal treatment for each patient. METHODS AND MATERIALS:The technique used at the Royal Brisbane & Women's Hospital uses a flexible two-part putty, moulded to the shape of the vagina, in which standard catheters (flexible implant tubes) are incorporated, in a pattern designed to permit a dose distribution more conformal to the target volume. RESULTS:The presented technique is efficient and improves the accuracy of a homogeneous target cover and sparing of organs at risk for vaginal mold brachytherapy treatments at our institution. CONCLUSION:This technique offers a customizable option when traditional cylindrical- or dome-type applicators cannot be used, or provide inadequate dose coverage. Molds to match the patient anatomy can be created quickly, while allowing flexibility in positioning of catheters to achieve the desired dose distribution.

journal_name

Brachytherapy

journal_title

Brachytherapy

authors

Nilsson S,Moutrie Z,Cheuk R,Chan P,Lancaster C,Markwell T,Dawes J,Back P

doi

10.1016/j.brachy.2014.10.004

subject

Has Abstract

pub_date

2015-03-01 00:00:00

pages

267-72

issue

2

eissn

1538-4721

issn

1873-1449

pii

S1538-4721(14)00677-1

journal_volume

14

pub_type

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