【摘要】 目的:探讨磁共振水成像技术(MRCP)诊断胆道梗阻性病变的效果。方法:选取2015年9月-2017年2月本院收治的胆道梗阻患者80例,均进行CT诊断以及MRCP诊断,以病理学检查结果为金标准判断两者的诊断结果。结果:MRCP患者检测出76例,符合率为95.0%,漏检患者4例,漏检率为5.0%;CT检测出60例,符合率为75.0%,漏检患者20例,漏检率为25.0%,MRCP患者的符合率明显高于CT(P http://
【关键词】 MRCP; 胆道梗阻性病变; 诊断
【Abstract】 Objective:To investigate the effect of magnetic resonance hydrography MRCP(Magnetic Resonance Cholangiopancreatography) on the diagnosis of biliary obstructive lesions.Method:80 patients with biliary obstruction admitted to our hospital from September 2015 to February 2017 were selected,and all patients were diagnosed by CT and MRCP,the diagnostic results of two patients were judged by pathological examination.Result:76 cases were detected in MRCP patients,the coincidence rate was 95.0%,4 cases were missed,and the missed detection rate was 5.0%.60 cases were detected by CT,the coincidence rate was 75.0%,20 cases were missed,and the missed detection rate was 25.0%,the coincidence rate of MRCP was significantly higher than that of CT(P8 000 ms,回波时间(TE)>150 ms,
层厚1 mm,持续扫描2~5 min;CT使用的仪器为CE16层螺旋CT,具体参数为:电流380 mAs,电压120 kV,螺距1.375∶1,层厚1.0 mm[5-6]。
1.2.2 诊断方法 (1)CT进行CT扫描。在患者进行扫描前要有8~12 h的空腹,并且在进行扫描的15 min前口服少量的水,使胃肠道能够充盈。在准备工作结束后,患者选取合适的位置仰卧,对患者自头部开始扫描,扫描范围右膈顶至肾下极的部位[7]。首先?M行常规扫描,若有可疑占位患者,应该给予非离子对比剂优维显静脉注射,速度为4.0 mL/s,进行增强扫描。然后分析数据,记录病变数量、位置、边缘、强化方式等数据,进而获取胰胆管的成像[8]。(2) MRCP患者应用MRCP进行诊断,对患者的胆道等部位进行不同方向的观察。患者在观察之前要保持8 h以上的禁食,然后进行MRCP检查,患者选取合适的位置仰卧,使用超声探头对胆管进行多个方位的检查,观察横切面、扇形切面及纵切面,记录病变的大小、位置、形态、数量、回声特点以及边缘位置,进而清晰地显示出胆道系统的形态结构以及梗阻位置[9]。临床上对于患者的诊断应首先采用MRCP进行临床诊断,可以更直观地观察出患者的病症。 1.3 观察指标 观察两组患者的诊断符合率指标。
1.4 统计学处理 数据应用SPSS 18.0进行分析,计数资料以率(%)表示,比较采用 字2检验,P参考文献
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(收稿日期:2017-11-29) (本文编辑:张爽)