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Reproducibility and...
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Lindvall, PeterUmeå universitet,Neurokirurgi
(author)
Reproducibility and geometric accuracy of the Fixster system during hypofractionated stereotactic radiotherapy
- Article/chapterEnglish2008
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2008
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:umu-10199
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-10199URI
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https://doi.org/10.1186/1748-717X-3-16DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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BACKGROUND:Hypofractionated radiotherapy has been used for the treatment of AVMs and brain metastases. Hypofractionation necessitates the use of a relocatable stereotactic frame that has to be applied on several occasions. The stereotactic frame needs to have a high degree of reproducibility, and patient positioning is crucial to achieve a high accuracy of the treatment.METHODS:In this study we have, by radiological means, evaluated the reproducibility of the isocenter in consecutive treatment sessions using the Fixster frame. Deviations in the X, Y and Z-axis were measured in 10 patients treated with hypofractionated radiotherapy.RESULTS:The mean deviation in the X-axis was 0.4 mm (range -2.1 - 2.1, median 0.7 mm) and in the Y-axis -0.3 mm (range -1.4 - 0.7, median -0.2 mm). The mean deviation in the Z-axis was -0.6 (range -1.4 - 1.4, median 0.0 mm).CONCLUSION:There is a high degree of reproducibility of the isocenter during successive treatment sessions with HCSRT using the Fixster frame for stereotactic targeting. The high reducibility enables a safe treatment using hypofractionated stereotactic radiotherapy.
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Bergström, PerUmeå universitet,Institutionen för strålningsvetenskaper(Swepub:umu)pebe0049
(author)
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Löfroth, Per-Olov
(author)
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Henriksson, RogerUmeå universitet,Institutionen för strålningsvetenskaper(Swepub:umu)rohe0003
(author)
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Bergenheim, A. TommyUmeå universitet,Neurokirurgi(Swepub:umu)tobe0004
(author)
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Umeå universitetNeurokirurgi
(creator_code:org_t)
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In:Radiation Oncology3:161748-717X
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