An isocentrically mounted stand for total body irradiation |
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Authors: | Jones D Rieke J W Madsen B L Hafermann M D |
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Affiliation: | Northwest Medical Physics Center, Lynnwood, WA, USA. |
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Abstract: | The purpose of this study was to construct a stand to support a patient for total body photon irradiation and to expedite the set-up and treatment by rotating the stand. As in other isocentric treatments, the midline dose is impacted less by source-to-skin distance variations. The method of immobilizing the patient is described. A 10 mm lucite plate is supported in front of the patient to increase skin dose. A matrix of holes in this plate serves to index the location of blocks used to shield the lungs. The dosimetry of the set-up is described, as is the production of tissue deficit compensators. The results of phantom studies and in vivo thermoluminescent dosimetry measurements are presented. |
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