Yeniçeri Önder, Çullu Neşat, Özşeker Burak, Yeniçeri Emine Neşe
Faculty of Medicine, Mugla Sitki Kocman University, Turkey.
Pol J Radiol. 2019 Oct 21;84:e419-e423. doi: 10.5114/pjr.2019.89689. eCollection 2019.
The purpose of this study was to investigate interobserver agreement during magnetic resonance cholangio-pancreatography (MRCP) evaluation and the sensitivity and specificity of MRCP obtained with 3T scanners in cases of bile duct obstruction.
A total of 37 patients who had MRCP and endoscopic retrograde cholangiography (ERCP) were included. Choledochal pathology was divided into two groups regarding the presence of stones as "there is stone or not". MRCPs were performed with a 3-Tesla system using respiratory triggered HASTE technique in axial and coronal planes and with T2 SPACE sequence in the coronal plane. Sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) were calculated separately for each observer. The average of both observers was calculated for comparison with other studies.
Thirty-seven patients were in the study population. Agreement between the observers was analysed, and Cohen's κ value was evaluated as 0.84. For two observers, the sensitivity of MRCP was 93%, whereas the specificity was 75% for the first observer and 62% for the second.
In this study we found a high level of interobserver agreement in evaluating MRCP. MRCP has a high sensitivity in detecting choledocholithiasis.
本研究旨在调查磁共振胰胆管造影（MRCP）评估过程中观察者间的一致性，以及3T扫描仪获得的MRCP在胆管梗阻病例中的敏感性和特异性。
共纳入37例行MRCP和内镜逆行胰胆管造影（ERCP）的患者。根据是否存在结石，将胆管病变分为两组。使用3特斯拉系统，采用呼吸触发HASTE技术在轴位和冠状位平面进行MRCP检查，并在冠状位平面使用T2 SPACE序列。分别计算每位观察者的敏感性、特异性、阴性预测值（NPV）和阳性预测值（PPV）。计算两位观察者的平均值，以便与其他研究进行比较。
37名患者纳入研究人群。分析了观察者之间的一致性，Cohen's κ值评估为0.84。对于两位观察者，MRCP的敏感性为93%，而第一位观察者的特异性为75%，第二位观察者为62%。
在本研究中，我们发现在评估MRCP时观察者间具有高度一致性。MRCP在检测胆管结石方面具有较高的敏感性。
