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An evaluation of the ICON® mask fixation: curing characteristics of the thermoplastic fixation and implications for patient workflow Cover

An evaluation of the ICON® mask fixation: curing characteristics of the thermoplastic fixation and implications for patient workflow

Open Access
|Jan 2018

Abstract

Background

Thermoplastic mask immobilization is used to perform hypo-fractionated treatments with the Gamma Knife ICON®.

Materials and methods

We evaluated the curing characteristics of the ICON® Nanor mask using force sensing resistors coupled with a data logging tool designed by us.

Results

For patients being treated with masks made the same day as the treatment, often in the same sitting with no removal and replacement of the patient from the treatment cradle, based on the curves 80% of the force of fixation is reached at 30 minutes.

Conclusions

Allowing for curing over 10-15 minutes and the subsequent localizing and delivery Cone beam CT (CBCT)s as well as the plan evaluation this is a reasonable time to start of therapy. For more exacting targets that are still requiring hypo-fractionation a cure period of 15 hours or greater will ensure that maximum rigidity of fixation is achieved.

DOI: https://doi.org/10.2478/raon-2018-0018 | Journal eISSN: 1581-3207 | Journal ISSN: 1318-2099
Language: English
Page range: 229 - 232
Submitted on: Sep 15, 2018
Accepted on: Sep 30, 2018
Published on: Jan 24, 2018
Published by: Association of Radiology and Oncology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 times per year

© 2018 Samendra Prasad, Matthew Podgorsak, Robert Plunkett, Dheerendra Prasad, published by Association of Radiology and Oncology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.