ArticleBeijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences2022
[Dosimetric effect of patient arm position on Cyberknife radiosurgery for spinal tumors].
Article in Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors at 2 institutions in 1 country.
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Abstract
objectiveTo assess the potential dosimetric effects of arms movement in patients with Cyberknife spine tumors.
methodsIn the study, 12 patients with thoracic and lumbar tumors were retrospectively selected respectively. The contour of the patient's arms was sketched and the CT density was modified to be equivalent to air in order to simulate the extreme case when the arm was completely removed from the radiation fields. The dose of simulated plan was re-calculated with the original beam parameters and compared with the original plan. The changes of
resultsCompared with the original treatment plan,
conclusionThis study analyzed the most extreme arm position in spinal tumor of radiation therapy based on Cyberknife. It was found that the change of arm position had little effect on dosimetry. In addition, with the change of arm position, the dose in PTV and organ at risk (OAR) increased, but the increase was relatively small. Therefore, in some special cases where the patient really can't keep the arm position consistent during treatment, reasonable adjustment can be accepted. However, in order to ensure accurate radiotherapy, patient position should be as stable and consistent as possible.
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Identifiers
35165488PMC8860651W4213402584What OpenQuestion holds
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