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A pilot study of volumetric-modulated arc therapy for malignant pleural mesothelioma

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机构: [1]Hebei Med Univ, Dept Radiotherapy & Oncol, Hosp 4, Shijiazhuang, Hebei Province, Peoples R China
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关键词: pleural mesothelioma intensity-modulated radiotherapy/volumetric-modulated arc therapy plan compare dose verification Delta(4) detector array

摘要:
Malignant pleural mesothelioma (MPM) is an extremely difficult disease to treat. This pilot study investigates the feasibility of using volumetric-modulated arc therapy (VMAT) for malignant pleural mesothelioma (MPM), and compares VMAT to static field intensity-modulated radiotherapy (IMRT) for five patients. To identify the best treatment technique for MPM, in five patients, we made a representative comparative analysis of two kinds of techniques for radiation therapy planning: IMRT and VMAT. The plans were created for an Elekta Synergy linear accelerator with 6 MV photons using Oncentra version 4.3 treatment planning system. Dose prescription was 50 Gy to the average of the planning target volume (PTV). PTV coverage and homogeneity, dose of organs at risk, numbers of segments, MUs, and delivery time were evaluated for all techniques. VMAT allowed better homogeneous and conformity indices compared with IMRT (HI = 0.17 vs. 0.12, CI = 0.64 vs. 0.77, respectively, p < 0.05). VMAT plan had a significantly shorter delivery time (326 s) compared with in IMRT plans (510 s), (p < 0.05). In the dose verification, an average of 93.16% of the detector points passed the 3%/3 mm gamma criterion for VMAT plans, while in IMRT plans the dose verification was 95.12%.(p > 0.05).

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出版当年[2016]版:
大类 | 4 区 医学
小类 | 4 区 核医学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 核医学
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出版当年[2016]版:
Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
最新[2024]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

影响因子: 最新[2024版] 最新五年平均 出版当年[2016版] 出版当年五年平均 出版前一年[2015版] 出版后一年[2017版]

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第一作者机构: [1]Hebei Med Univ, Dept Radiotherapy & Oncol, Hosp 4, Shijiazhuang, Hebei Province, Peoples R China
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通讯机构: [1]Hebei Med Univ, Dept Radiotherapy & Oncol, Hosp 4, Shijiazhuang, Hebei Province, Peoples R China [*1]Dept Radiotherapy & Oncol, 12 JianKang Rd, Shijiazhuang 050011, Hebei Province, Peoples R China
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