摘要
目的：探讨单激发厚层投射磁共振胰胆管成像（ＭＲＣＰ）显示胰胆管树的能力和对胰胆管梗阻性病变的诊断价值。材料与方法：用重Ｔ２加权单激发ＴＳＥ序列、厚层投射直接成像技术做ＭＲＣＰ检查共１５０例，正常组５０例，病变组１００例。分析其对正常胰胆管各主要结构的显示率及对梗阻病变的检出率、定位和定性诊断准确率，将结果与ＣＴ、ＵＳ、ＥＲＣＰ／ＰＴＣ及手术和病理相对照。结果：本法可显示管径１～２ｍｍ的胰胆管分支；准确显示胰胆管梗阻的部位、范围、形态及复合梗阻，总的定位和定性诊断准确率分别为９１．３％和８４．０％，优于ＣＴ和ＵＳ（Ｐ＜０．０５）；尤适宜于诊断肝外胆道梗阻，检出梗阻和定位诊断的准确率均达１００％，总的定性诊断准确率为８５．７％，明显优于ＣＴ和ＵＳ（Ｐ＜０．０１）；但对无扩张的胰胆管内的小结石和病变、早期胰胆管的微小狭窄的敏感性有限。ＭＲＣＰ与ＭＲＩ结合，诊断准确率进一步提高。结论：单激发厚层投射ＭＲＣＰ是一种简便快速、安全可靠的胰胆管系统影像学检查方法，可为临床诊断和指导治疗提供必要的帮助。
Objective: To evaluate breath hold MR cholangiopancreatography (MRCP) using single shot projection and thick slice technique in demonstrating of pancreatobiliary ducts and in diagnosing of obstructive diseases.Materials and Methods:Breath hold MRCP with heavily T 2 weighted turbo SE sequence using single shot projection and thick slice technique was performed in 150 cases, including 50 volunteers and 100 patients.Results:The major structures of the pancreatobiliary tree were demonstrated in all volunteers. The site, length, morphologic features and the number of the dilated or stenotic ducts were well revealed. The accuracy of localization and the accuracy of diagnosis were 91.3% and 84.0%, respectively. However, for detecting small calculi in intrahepatic ducts and early changes of pancreatic duct in chronic pancreatitis, this technique showed limited value.Conclusion: As a simple and rapid, reliable and safe imaging technique, single shot projection MRCP can provide important information very helpful for clinical diagnosis and treatment planning.
出处
《临床放射学杂志》
CSCD
北大核心
1999年第7期407-410,共4页
Journal of Clinical Radiology
