Neri E, Boraschi P, Caramella D, Braccini G, Gigoni R, Cosottini M, Lodovigi S, Bartolozzi C
Department of Oncology, University of Pisa, Italy.
MAGMA. 2000 Feb;10(1):35-42. doi: 10.1007/BF02613110.
MR-cholangiopancreatography (Signa Contour 0.5T; GE/Medical Systems, Milwaukee, WI) data sets of 156 patients, obtained with a 2D T2-weighted FSE sequence, in the coronal plane, were volume rendered (Advantage Windows 3.1; GEMS) independently by two radiologists, that were asked to define the range of signal intensities in which the signal of the pancreaticobiliary system was included and to rank the quality of native images and volume renderings. Patients had biliary stones (n = 47), inflammatory ampullary stenoses (n = 18), pancreatic tumors (n = 12), surgical bilio-enteric anastomoses (n = 19), ampullary carcinomas (n = 2), pancreatic duct stone (n = 1), cholangiocarcinoma (n = 3) and normal pancreaticobiliary tree (n = 54). Good quality volume renderings of the bile ducts were obtained for at least a maximum diameter of 1.5 mm. The quality rank agreement between volume rendering and native images was excellent (k = 0.94). The correlation between the observers for the setting the signal intensity range was excellent and statistically significant (P < 0.001). The correlation between the observers for the time of volume rendering was not statistically significant. Biliary stones could be displayed in 32/47 (68%) cases. The pancreatic duct stones was displayed as well. Inflammatory ampullary stenoses were detected in all cases (100%). In case of pancreatic tumors, cholangiocarcinomas and ampullary carcinomas volume rendering allowed to identify the site of stenosis. In surgical bilio-enteric anastomoses volume rendering was helpful to display the residual biliary tract, the site of anastomosis and the enteric tract. Volume rendering could be a reliable and efficient tool for the study of the anatomy and pathological changes of the pancreaticobiliary tract.
对156例患者的磁共振胰胆管造影（Signa Contour 0.5T；通用电气医疗系统公司，威斯康星州密尔沃基）数据集进行了研究，这些数据集采用二维T2加权快速自旋回波序列在冠状面获取，由两名放射科医生独立进行容积再现（Advantage Windows 3.1；通用电气医疗系统公司）。要求他们确定包含胰胆管系统信号的信号强度范围，并对原始图像和容积再现的质量进行排名。患者患有胆结石（n = 47）、炎性壶腹狭窄（n = 18）、胰腺肿瘤（n = 12）、外科胆肠吻合术（n = 19）、壶腹癌（n = 2）、胰管结石（n = 1）、胆管癌（n = 3）以及正常胰胆管树（n = 54）。获得了至少最大直径为1.5 mm的胆管高质量容积再现图像。容积再现与原始图像之间的质量排名一致性极佳（k = 0.94）。观察者之间在设置信号强度范围方面的相关性极佳且具有统计学意义（P < 0.001）。观察者之间在容积再现时间方面的相关性无统计学意义。胆结石在32/47（68%）的病例中可以显示。胰管结石也能显示。炎性壶腹狭窄在所有病例中均被检测到（100%）。对于胰腺肿瘤、胆管癌和壶腹癌，容积再现有助于确定狭窄部位。在外科胆肠吻合术中，容积再现有助于显示残余胆道、吻合部位和肠道。容积再现可能是研究胰胆管解剖结构和病理变化的可靠且有效的工具。
