MRCP与True FISP序列在梗阻性黄疸诊断中的比较

MRCP and true FISP diagnosis of obstuctive jundice: a comparative study

目的 比较MRCP与TrueFISP序列在诊断梗阻性黄疸中的价值。方法 对临床怀疑有梗阻性黄疸的 3 0例病人的MRCP与TrueFISP序列分别进行阅片诊断 ,再结合其他序列进行诊断 ;最后与病理结果进行对比分析。结果 MRCP与TrueFISP序列判断有无梗阻及梗阻部位的敏感性和特异性均很高 ,但TrueFISP序列的正确定性率 (61.9% )高于MRCP(5 4.5 % )。而结合T1WI、T2WI序列后正确定性率达 86.7%。结论 MRCP与TrueFISP序列均能很好的判断有无胆管梗阻及梗阻部位 ,MRCP对胰胆管整体显示较好 ,不易漏诊小病变。但在定性方面 ,TrueFISP序列优于MRCP。单凭MRCP或TrueFISP不能区别炎症和肿瘤。

Objective To compare the value of MRCP and True FISP in diagnosising obstructive judice. Methods MRCP and True FISP of 30 patients with suspected obstructive jundice were interpreted by two radiologists on a blinded basis, respectively. All the sequences were used to make diagnosis and the findings were compared with the results of ERCP, operation and pathology. Results The sensibility and specificity of MRCP and True FISP in judging the existence and the level of obstructive jundice were high; the accuracy of True FISP was higher than that of MRCP in judging the cause of obstruction (61.9% and 54.5%, respectively). The accuracy of all the sequences in judging the cause of obstruction was 86.7%. Conclusion Both two sequences demonstrated the existent and the level of obstruction well and MRCP is well in showing the whole outline of pancreaticobiliary. True FISP is more accuracy in judging the cause of obstruction. More sequences are needed to obtain more accurate diagnosis.