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TISSUE-MIMICKING PHANTOM FOR PROSTATE CANCER BRACHYTHERAPY
TISSUE-MIMICKING PHANTOM FOR PROSTATE CANCER BRACHYTHERAPY
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机译:前列腺癌手术的组织模仿药
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摘要
A phantom for prostate cancer brachytherapy has a prostate tissue phantom shaped like a real prostate gland, a perineal tissue phantom surrounding the prostate tissue phantom, a skin tissue phantom separating the perineal tissue phantom from an outside environment, and an enclosure. The prostate tissue phantom is a polyvinyl alcohol cryogel (PVA-C) having undergone 3-5 freeze-thaw cycles and having 10- 20% w/w PVA in a solvent (e.g. water), 4-8% w/w oil and an amount of acoustic scattering particles to ultrasonically distinguish the prostate tissue phantom from its surroundings. The perineal tissue phantom is a PVA-C having undergone 1-2 freeze-thaw cycles and having 10-20% w/w PVA in a solvent, 4-8% w/w oil and an amount of acoustic scattering particles to ultrasonically distinguish the perineal tissue phantom from its surroundings. The skin tissue phantom is a PVA-C having undergone at least 6 freeze-thaw cycles and having 15-25% w/w PVA in a solvent. The phantom mimics the imaging and mechanical properties of the prostate and surrounding tissues, providing a realistic phantom for prostate cancer brachytherapy.
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机译:用于前列腺癌近距离治疗的体模具有形状像真正的前列腺的前列腺组织体模,围绕前列腺组织体模的会阴组织体模,将会阴组织体模与外部环境隔开的皮肤组织体模以及封闭物。前列腺组织体模是经过3-5次冻融循环并在溶剂(例如水)中具有10-20%w / w PVA,在4-8%w / w油中的聚乙烯醇冷冻凝胶(PVA-C)。一定数量的声散射粒子,以超声方式将前列腺组织体模与其周围环境区分开。会阴组织体模是经过1-2次冻融循环并在溶剂中具有10-20%w / w PVA,4-8%w / w油和一定数量的声散射颗粒以进行超声区分的PVA-C从周围的会阴组织模型。皮肤组织模型是PVA-C,其经历了至少6次冻融循环并且在溶剂中具有15-25%w / w的PVA。该体模模仿了前列腺和周围组织的成像和机械特性,为前列腺癌近距离治疗提供了一种现实的体模。
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