MRI-LAVA序列与增强CT扫描诊断肝脏结节性病变

Application Value of MRI-LAVA and Enhanced CT Scan in Diagnosis of Nodular Liver Lesions

目的:对比分析核磁共振肝脏快速容积成像技术(MRI-LAVA序列)与增强CT检查对肝脏结节性病变的诊断价值。方法:收集通过病理活检或临床证实的肝脏结节性病变患者共20例,所有病例均行肝脏MRI-LAVA序列及增强CT检查,统计两种方法的肝脏结节性病变的检出情况,并比较≤3 cm和>3 cm的肝脏结节性病灶的诊断正确率。结果:MRI-LAVA序列共检出31个病灶,增强CT检查共检出28个病灶;≤3 cm肝脏结节性病变共23个,增强CT检查准确率为60.87%(14/23),MRI-LAVA序列诊断准确率为86.96%(20/23),差异有统计学意义(P<0.05);>3 cm肝脏结节性病变共8个,增强CT诊断正确率为87.50%(7/8),MRILAVA序列断诊断正确率为87.50%(7/8),差异无统计学意义(P=1.00)。结论:与增强CT比较,MR-LAVA序列能发现更多的肝内结节性病变,对肝内小结节性病变的诊断准确性较高。

Objective： To analyze and compare the application value of enhanced CT （ECT） and MRI-LAVA sequence examination in diagnosis of hepatic nodular lesion （HNL）. Methods： Twenty HNL patients confirmed by pathological examination or clinical diagnosis were chosen. All these cases accepted MRI-LAVA sequences and ECT examination, and the diagnostic accuracy of HNL was com- pared between ECT and MRI-LAVA. Results： Totally 31 HNL foci were detected by MRI-LAVA, while 28 detected by ECT. Among them, 23 loci were ~〈3 cm, and the diagnostic accuracy rates by ECT and MRI-LAVA were 60.87% and 86.96% respectively （P 〈0.05）. For the other 8 HNL foci that were 33 cm the diagnostic accuracy rates by ECT and MRI-LAVA were 87.50% and 87.50% re- spectively （P = 1.00 ）. Conclusion： MRI-LAVA sequences can detect HNL more efficiently, and shows higher accuracy rate in diagnosis of small HNL than enhanced CT does.