MRCP参数及方法改良对胆总管小结石筛查的影响

Influence of MRCP parameters and modified methods on scanning common bile duct microstones

目的探讨磁共振胰胆管成像(MRCP)参数及方法改良对胆总管微小结石(≤5 mm)筛查的影响。方法经手术或内窥镜逆行胰胆管造影术(ERCP)取石证实的胆总管微小结石患者56例,行常规与改良参数及方法的单激发快速自旋回波(SSFSE)水成像MRCP检查,筛查胆总管微小结石,并比较手术和ERCP结果。结果胆总管微小结石MRCP常规法阳性率58.9%(33/56),明显低于改良法83.9%,47/56)。结论MRCP改良法较常规法筛查胆总管微小结石检出率更高。

Objective To evaluate the influence of magnetic resonance cholangiopancrea-tography （MRCP） parameters and modified method on scanning common bile duct microstones. Methods Conventional MRCP examination （based on FSE MR hydrography sequences） was used in 56 patients with suspected common bile duct microstones （≤ 5 mm）, which was compared with that from new scanning techniqu. Results The positive rate of comnon bile duct microstones was 58.9%（33/56） when examined with conventional MRCP, which was lower than 83.9%（47/56） with modified method. Conclusion New modified method is more sensitive than conventional MRCP in detecting microstones in the common bile duct.