摘要目的以实体瘤疗效评价标准(RECIST 1.1)为参考标准,探讨MRI直方图分析对预测结直肠癌肝转移病人化疗疗效的价值。方法 53例结直肠癌肝转移病人在化疗前进行常规MRI检查,包括扩散加权成像(b=0,500 s/mm~2)。将表观扩散系数(ADC)图、动脉期和门静脉期强化图中的最大转移灶兴趣区(ROI)以直方图形式显示,得到上述图像中最 Abstract Objective To evaluate the value of MRI histogram analysis in predicting the efficacy of chemotherapy in patients with liver metastasis from colorectal cancer based on RECIST 1.1 standard. Methods 53 patients with liver metastases from colorectal cancer underwent routine MRI before chemotherapy, including diffusion - weighted imaging (b = 0, 500 s / mm ~ 2). The maximum area of ​​metastatic interest (ROI) in the apparent diffusion coefficient (ADC), arterial phase and portal venous phase enhanced images is displayed in the form of a histogram, the most