The value of nuclear magnetic pancreatobiliary imaging in the diagnosis of extrahepatic bile duct stones
核磁胰胆管成像在肝外胆管结石诊断中的价值

摘要

目的 将核磁胰胆管成像用于肝外胆管结石诊断中，对其应用价值进行探究。方法 选取2024年1月~2025年2月本院收治的102例疑似肝外胆管结石患者，所有患者均行腹部CT、核磁胰胆管成像（MRCP）检查，将病理结果作为诊断“金标准”，探究MRCP对肝外胆管结石的诊断价值。结果 本组102例疑似肝外胆管结石患者，经病理结果证实阳性75例、阴性27例，其中腹部CT检查经病理结果证实阳性58例（实际检出65例）、阴性20例（实际检出37例），MRCP检查经病理结果证实阳性70例（实际检出72例）、阴性25例（实际检出30例）；MRCP对肝外胆管结石的诊断准确率为93.14%、特异性为92.59%、灵敏度为93.33%、阳性预测值为97.22%、阴性预测值为83.33%，明显较腹部CT检查76.47%、74.07%、77.33%、89.23%、54.05%高（P<0.05）。结论 对肝外胆管结石患者来说，应用核磁胰胆管成像可提高对患者的诊断效能，为临床诊断疾病、制定治疗方案提供强有力的证据，具有较高应用价值。

Abstract

Objective To investigate the diagnostic value of magnetic resonance cholangiopancreatography (MRCP) in detecting extrahepatic bile duct stones.
Methods A total of 102 suspected extrahepatic bile duct stone patients admitted to our hospital between January 2024 and February 2025 were enrolled. All patients underwent abdominal CT and MRCP scans, with pathological results serving as the gold standard for diagnosis.
Results Among the 102 suspected cases, 75 were confirmed positive and 27 negative by pathological examination. Specifically, 58 abdominal CT cases (65 detected) were positive, while 20 (37 detected) were negative. MRCP confirmed 70 positive cases (72 detected) and 25 negative cases (30 detected). MRCP demonstrated diagnostic accuracy of 93.14%, specificity of 92.59%, sensitivity of 93.33%, positive predictive value of 97.22%, and negative predictive value of 83.33%, significantly outperforming abdominal CT (76.47%,74.07%,77.33%,89.23%,54.05%, P<0.05).
Conclusion   For patients with extrahepatic bile duct stones, MRCP enhances diagnostic efficiency and provides robust evidence for clinical diagnosis and treatment planning, demonstrating significant clinical value.