摘要目的:比较磁共振成像(MRI)与增强CT扫描用于肝癌诊断的价值。方法:选取余姚市人民医院2017年1-12月诊治的肝癌患者72例为研究对象，分别采用肝脏增强CT扫描与MRI扫描，比较两种检查方式对病灶的阳性率、准确率及两种检查方式的敏感性、特异性。结果:两种检查方式对肝外病灶的检出情况(41.67%比36.11%)差异无统计学意义( P>0.05)；MRI肝内病灶检出率(94.44%)显著高于增强CT(77.78%)(χ 2＝8.361， P<0.05)；MRI的漏诊率[5.56%(4/72)]、误诊率[1.39%(1/72)]均低于增强CT组[22.22%(16/72)、11.11%(8/72)]，准确率[93.06%(67/72)]高于增强CT[66.67%(48/72)]，差异均有统计学意义(χ 2＝8.361、4.354、15.578，均 P<0.05)；MRI的敏感性[92.86%(52/56)]、特异性[93.75%(15/16)]均高于增强CT[71.43%(40/56)、50.00%(8/16)](χ 2＝8.675、7.575，均 P<0.05)。 结论:MRI用于肝癌患者的诊断，准确率、敏感性、特异性均高于增强CT。

abstractsObjective:To compare the clinical value of magnetic resonance imaging (MRI) and enhanced CT in the diagnosis of liver cancer.Methods:From January 2017 to December 2017, 72 patients with liver neoplasms who received treatment in Yuyao People's Hospital were selected as the subjects of this study.Enhanced CT scan and liver MRI scan were used in all patients respectively to compare the examination conditions of the two scanning methods for the lesions, the positive rate and accuracy of the detection, as well as the sensitivity and specificity of the two methods.Results:There was no statistically significant difference in the detection of extrahepatic lesions between the two methods(41.67% vs.36.11%, P>0.05). The detective rate of intrahepatic lesions of MRI (94.44%) was higher than that of enhanced CT(77.78%), the difference was statistically significant(χ 2=8.361, P<0.05). The missed diagnosis rate[5.56%(4/72)], misdiagnosis rate[1.39%(1/72)] of MRI were lower than those of enhanced CT[22.22%(16/72), 11.11%( 8/72)], and the accuracy of MRI[93.06%(67/72)] was higher than that of enhanced CT[66.67%(48/72)], the differences were statistically significant(χ 2=8.361, 4.354, 15.587, all P<0.05). The sensitivity[92.86%(52/56)], specificity[93.75%(15/16)] of MRI were higher than those of enhanced CT[71.43%(40/56), 50.00%(8/16)](χ 2=8.675, 7.575, all P<0.05). Conclusion:In the clinical diagnosis of liver cancer, the diagnostic accuracy of liver MRI is relatively high, which is conducive to the establishment and implementation of patients' treatment plan, and is conducive to clinical application and promotion.