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目的比较增强CT和MRI诊断肝癌的临床价值。方法选择自2012年2月至2014年12月前来我院接受治疗的186例疑似肝癌患者,确诊160例,分别采用肝脏增强CT和MRI进行诊断,比较两种方法对肝癌的检出情况。结果采用增强扫描动脉期明显强化CT142例,MRI160例,门脉期等密度CT151例,MRI142例,延迟期低密度或低信号CT160例,MRI158例。增强CT检测出123例肝内病灶和58例肝外病灶;MRI检测出148例肝内病灶和89例肝外病灶。MRI确诊的肝内病灶数及阳性率均明显高于于增强CT(P<0.05),,故MRI确诊率明显高于CT(P<0.05),对于直径不超过3cm的肿瘤,MRI的确诊率亦明显高于CT(P<0.05)。结论肝脏增强CT和MRI对于肝癌的诊断都具有一定的特征性,但肝脏MRI对肝癌诊断的准确率优于增强CT,尤其是对于直径≤3cm的肿瘤,在临床中广泛推广应用有助于提高肝癌诊断的准确性。
Objective To compare the clinical value of enhanced CT and MRI in the diagnosis of liver cancer. Methods A total of 186 patients with suspected liver cancer who were treated in our hospital from February 2012 to December 2014 were selected and 160 cases were diagnosed. Liver enhanced CT and MRI were used respectively for diagnosis. The detection of liver cancer by the two methods was compared. Results Forty-two CT images of 142 cases of enhanced arterial phase enhanced MRI, 160 cases of MRI, 152 cases of portal venous isodense density CT, 142 cases of MRI, low-density or low-signal CT160 cases and 158 cases of MRI. 123 cases of intrahepatic lesions and 58 cases of extrahepatic lesions were detected by enhanced CT; 148 cases of intrahepatic lesions and 89 extrahepatic lesions were detected by MRI. MRI confirmed the number of intrahepatic lesions and positive rates were significantly higher than enhanced CT (P <0.05), so the MRI diagnosis rate was significantly higher than CT (P <0.05), the diameter of no more than 3cm of the tumor, the MRI diagnosis rate Also significantly higher than CT (P <0.05). Conclusions Liver enhanced CT and MRI have certain characteristics for the diagnosis of liver cancer. However, the accuracy of liver MRI in diagnosing liver cancer is better than that of contrast-enhanced CT, especially for tumors with a diameter less than 3 cm. It is widely used in clinical practice to improve Accuracy of diagnosis of liver cancer.