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摘要目的采用肿瘤全容积与单层图像兴趣区(ROI)衍生的直方图分析以确定体素内非相干性运动(IVIM)参数和表观扩散系数(ADC)评估直肠癌病人对放化疗(CRT)反应的诊断效能。材料与方法本回顾性研究经伦理委员会批准,31例直肠癌病人CRT前后均行MRI检查,包括术前34个b
Abstract Objective To evaluate histogram analysis of IVIM and apparent diffusion coefficient (ADC) in tumor volume and single-image region of interest (ROI) ) Diagnostic efficacy of the reaction. Materials and Methods The retrospective study approved by the Ethics Committee, 31 patients with rectal cancer patients underwent MRI before and after CRT, including 34 preoperative b