半圆柱状射野挡块在早期声门型喉癌放射治疗中的临床应用研究。
Clinical Application Study of Semi-cylindrical Beam Spoiler for Radiation Treatment of Early-stage Glottic Cancer Patients.
机构信息
Department of Medicine, Yonsei University, Seoul, Republic of Korea.
Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea;
出版信息
In Vivo. 2022 Mar-Apr;36(2):1013-1017. doi: 10.21873/invivo.12795.
BACKGROUND/AIM: The purpose of this study was to determine whether a semi-cylindrical beam spoiler (sCBS) developed herein effectively increases the skin dose in patients with early-stage glottic cancer.
PATIENTS AND METHODS
We measured the surface doses for 26 patients who used the sCBS during treatment of early-stage glottic cancer through a parallel-opposed lateral two-field 6 MV photon beam. Measurements were performed by attaching optically stimulated luminescent dosimeters to the left, right, anterior (in-field), inferior, and superior (out-field) sides of the patient.
RESULTS
The measured results were 81.8±2.1% (left), 81.0±1.7% (right), and 76.8±2.7% (anterior) in the in-field region compared to prescription doses, with 5.7±1.7% (superior) and 2.7±0.7% (inferior) in the out-field region.
CONCLUSION
sCBS can deliver a suitably ideal surface dose for treatment of early-stage glottic cancer.
背景/目的：本研究旨在确定本文所开发的半圆柱状射束挡块（sCBS）是否能有效提高早期声门型喉癌患者的皮肤剂量。
患者与方法
我们通过使用 6 MV 光子束的平行对侧外侧两野法，对 26 例使用 sCBS 治疗早期声门型喉癌的患者进行了测量。通过将光激励发光剂量计附着在患者的左侧、右侧、前（场内）侧、下侧和上（场外）侧，来进行测量。
结果
与处方剂量相比，场内区域的测量结果分别为 81.8±2.1%（左侧）、81.0±1.7%（右侧）和 76.8±2.7%（前侧），场外区域的测量结果分别为 5.7±1.7%（上侧）和 2.7±0.7%（下侧）。
结论
sCBS 可以为治疗早期声门型喉癌提供合适的理想表面剂量。
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