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利用条件去噪扩散概率模型提升 CBCT 质量助力盆腔癌自适应放疗
锥形束计算机断层扫描(Cone-beam computed tomography,CBCT)在放射治疗中被广泛用于治疗前对患者进行成像。然而,由于散射、运动以及重建方法等因素,其图像质量低于计划 CT。这降低了亨氏单位(Hounsfield units,HU)的准确性,限制了它在自适应放射治疗 ...
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