磁共振成像在感染性胰腺炎合并肝脏损伤患者中的诊断评价

Diagnostic value of MRI in patients with infectious pancreatitis complicated with liver injury

目的探究磁共振成像(MRI)对感染性胰腺炎合并肝脏损伤患者的诊断价值,为临床治疗提供参考依据。方法选取2015年2月-2016年6月医院收治的感染性胰腺炎合并肝损伤疑似病例162例,所有患者均进行CT和MRI检查,观察两种检查方法的检查结果,分析两种检查方法的阳性率、诊断灵敏度、特异度等。结果 CT检查结果显示真阳性结果120例,真阴性15例,假阳性3例,假阴性24例;MRI检查结果显示真阳性结果135例,真阴性21例,假阳性2例,假阴性4例;CT的阳性率、阴性率、灵敏度、特异度、阳性似然比、阴性似然比为75.93%、24.07%、97.56%、83.33%、5.85%、0.03%;MRI为84.57%、15.43%、98.54%、91.30%、11.326%、0.016%;MRI检查阳性率与病理检查阳性率间差异无统计学意义,而CT检查阳性率与病理检查阳性率间差异有统计学意义(P<0.05)。结论 MRI用于诊断急性胰腺炎合并肝脏损伤时具有更好的特异度,能够做到精确诊断,可做为临床上诊断急性胰腺炎合并肝脏损伤的重要依据。

OBJECTIVE To explore the diagnostic value of magnetic resonance imaging（MRI）in patients with infectious pancreatitis complicated with liver injury,so as to provide references for clinical treatment.METHODS A total of 162 suspected cases of infectious pancreatitis complicated with liver injury from Feb.2015 to Jun.2016 in our hospital were selected.CT examination and MRI examination were performed on the patients.The examination results of the two kinds of examination methods were observed.The positive rate,diagnostic sensitivity and specificity of the two methods were analyzed.RESULTS CT examination results showed there were 120 cases of true positive,15 cases of true negative,3cases of false positive,and 24 cases of false negative.MRI examination results showed there were 135 cases of true positive,21 cases of true negative,2cases of false positive,and 4cases of false negative.The positive rate,negative rate,sensitivity,specificity,positive likelihood ratio,and negative likelihood ratio of CT were 75.93%,24.07%,97.56%,83.33%,5.852% and 0.029%,of MRI were 84.57%,15.43%,98.54%,91.30%,11.326%,and 0.016%.There was no significant difference between the positive rate of MRI examination and the positive rate of pathological examination.The positive rate of CT examination and the positive rate of pathological examination were significant（P〈0.05）.CONCLUSION MRI has a high specificity for the diagnosis of acute pancreatitis complicated with liver injury,which can achieve accurate diagnosis.So that it can be used as an important basis for clinical diagnosis of acute pancreatitis complicated with liver injury.