Patient position reproducibility in fractionated stereotactic radiotherapy: an update after changing dental impression material

The reproducibility of patient positioning within the Gill–Thomas–Cosman relocatable stereotactic frame was re-evaluated following the substitution of a new, softer, dental impression material for the original hard acrylic compound. The average total displacement for a series of 10 patients was 1.1...

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Bibliographic Details
Published in:Radiotherapy and oncology 1999-02, Vol.50 (2), p.239-240
Main Authors: Rosenberg, Ivan, Alheit, Horst, Beardmore, Charlotte, Lee, Kim Shang, Warrington, Alan P., Brada, Michael
Format: Article
Language:English
Subjects:
Accuracy
Acrylic Resins
Dental Impression Materials
Dose Fractionation, Radiation
Humans
Neoplasms - radiotherapy
Position reproducibility
Posture
Reproducibility of Results
Stereotactic radiotherapy
Stereotaxic Techniques - instrumentation
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Summary:The reproducibility of patient positioning within the Gill–Thomas–Cosman relocatable stereotactic frame was re-evaluated following the substitution of a new, softer, dental impression material for the original hard acrylic compound. The average total displacement for a series of 10 patients was 1.1 mm (±0.6 mm). Rotational discrepancies were small. This technique cannot deliver accurate repositioning in the absence of patient co-operation.
ISSN:0167-8140
1879-0887
DOI:10.1016/S0167-8140(99)00002-X