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摘要目的探讨直肠癌的DCE-MRI定量参数与伴有远处转移以及临床病理学因素之间的相关性。方法 63例直肠癌(远处转移31例;非转移32例)纳入本研究。DCE-MRI参数(K~(trans)、k_(ep)和v_e)的比较用t检验和方差分析。采用受试者操作特征(ROC)曲线分析,寻找DCE-MRI参数的合理阈值,以期鉴别伴有远处转移与无远处转移的病变。结果伴有远
Abstract Objective To investigate the relationship between quantitative parameters of DCE-MRI and distant metastasis and clinicopathological factors in rectal cancer. Methods 63 cases of rectal cancer (distant metastasis in 31 cases; non-metastasis in 32 cases) were included in this study. Comparison of DCE-MRI parameters (K-trans, k-ep and v-e) was performed using Student’s t test and analysis of variance. The receiver operating characteristic (ROC) curve analysis was used to find the reasonable threshold of DCE-MRI parameters in order to identify the lesion with distant metastasis and without distant metastasis. The result is accompanied by far