动态增强MRI和双排螺旋CT双期扫描在转移性肝癌诊断中的比较研究

Comparative Study of Dynamic Enhanced MRI and Dual Phase Dual-SCT Scanning in The Diagnosis of Liver Metastases

目的:对比动态增强MRI和双排螺旋CT对转移性肝癌的诊断价值。方法:35例转移性肝癌患者依次行双排螺旋CT双期扫描和MRI平扫及Gd-DTPA动态增强扫描、延迟扫描。比较双排螺旋CT动态增强扫描MRI平扫加Gd-DTPA动态扫描对转移性肝癌病灶定性的敏感性、特异性和准确性。结果:两组病灶检出的敏感性及诊断的准确性以MRI组较高,差异有统计学意义。结论:动态MRI对转移性肝癌病灶检出的敏感性及病灶诊断的准确性优于双排螺旋CT。

Objective： To compare the diagnostic value of dynamic enhanced MRI and dual-spiral CT（D-SCT） for detection of patients with liver metastases. Methods： 35 patients with liver metastases were underwent with both dual phase enhanced DSCT scanning,MRI plain scanning, Gd-DTPA enhanced MRI imaging and delay MRI scanning. The potential of lesion detection and sensitivity, specificity and accuracy of qualitative diagnosis with dual phase enhanced DSCT scanning,MRI plain scanning, Gd-DTPA dynamic enhanced MRI were analyzed. Results： The Gd-DTPA dynamic enhanced MRI was superior to the DSCT in lesion detection and accuracy of diagnosis which had statistical difference. Conclusion： The potential of lesion detecton and characterization of hepatic lesions are improved by Gd-DTPA dynamic enhanced MRI compared with that by D-SCT.