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摘要目的明确定量扩散加权和动态对比增强MR成像与传统MRI相比,对软组织肉瘤新辅助治疗反应的评估价值。材料与方法 23例经过新辅助治疗的软组织肉瘤病人进行MRI检查,由2名阅片者分3次阅片:常规影像(T1加权、液体敏感、静态对比增强T1加权)、常规扩散加权成像、常规扩散加权成像和动态对比增强MR成像。每一次阅片者记录影像特征并判断治疗反应。评估观察者间的一致性,并
Abstract Objective To evaluate the value of quantitative diffusion-weighted and dynamic contrast-enhanced MR imaging in neoadjuvant therapy response to soft tissue sarcomas compared with conventional MRI. Materials and Methods Twenty-three patients with soft tissue sarcoma who underwent neoadjuvant therapy underwent MRI examination. The patients were divided into three groups: routine imaging (T1 weighted, liquid sensitive, static contrast enhanced T1 weighted), conventional diffusion-weighted imaging, Conventional diffusion-weighted imaging and dynamic contrast-enhanced MR imaging. Every time the reader to record the image features and determine the response to treatment. Evaluate interobserver agreement and