Miyazaki T, Yamashita Y, Tang Y, Tsuchigame T, Takahashi M, Sera Y
Department of Radiology, Kumamoto University School of Medicine, Japan.
AJR Am J Roentgenol. 1998 Jan;170(1):33-7. doi: 10.2214/ajr.170.1.9423593.
This study was undertaken to assess the usefulness of MR cholangiopancreatography (MRCP) with a half-Fourier acquisition single-shot turbo spin-echo (HASTE) sequence as a noninvasive imaging technique to evaluate biliary or pancreatic disease in young children.
We prospectively examined 45 children (mean age, 3 years) with MRCP using HASTE on a 1.5-T MR imaging unit. MRCP images were obtained in 1.4 sec without breath-hold. A body phased array coil and fat saturation technique were used for data collection. On the basis of the surgical (n = 19) and ERCP (n = 7) findings, clinical data, and follow-up observation, 21 children were deemed to have no significant abnormality. The other 24 children were found to have pancreaticobiliary disease, including congenital biliary atresia in five neonates, choledochal cyst in six infants, and anomalous connections between the bile and pancreatic ducts in four infants and nine young children. In children without abnormality, the MRCP images were graded for the depiction of normal structures. The findings obtained by MRCP were correlated with the surgical or ERCP results.
HASTE MRCP showed the first branch of the intrahepatic duct, the common hepatic duct, the gallbladder, and the common bile duct in most children. In the 21 children with no abnormalities, the main pancreatic duct was visible in two of six neonates, in four of five infants, and in all 10 young children. The diagnostic accuracy of MRCP was 100% in patients with choledochal cysts, 100% in those with congenital biliary atresia, and 69% in those with anomalous connections between the bile and pancreatic ducts.
MRCP using HASTE with a phased array coil is a noninvasive technique for revealing the pancreaticobiliary tract in young children.
本研究旨在评估采用半傅里叶采集单次激发快速自旋回波（HASTE）序列的磁共振胰胆管造影（MRCP）作为一种非侵入性成像技术，用于评估幼儿胆道或胰腺疾病的效用。
我们前瞻性地对45名儿童（平均年龄3岁）使用HASTE序列在1.5-T磁共振成像设备上行MRCP检查。在无需屏气的情况下于1.4秒内获取MRCP图像。采用体部相控阵线圈和脂肪抑制技术进行数据采集。根据手术（n = 19）和内镜逆行胰胆管造影（ERCP，n = 7）结果、临床数据及随访观察，21名儿童被认为无明显异常。另外24名儿童被发现患有胰胆管疾病，包括5名新生儿先天性胆道闭锁、6名婴儿胆总管囊肿、4名婴儿和9名幼儿胆胰管异常连接。在无异常的儿童中，对MRCP图像描绘正常结构的情况进行分级。将MRCP检查结果与手术或ERCP结果进行对比。
HASTE MRCP在大多数儿童中显示了肝内胆管的第一分支、肝总管、胆囊和胆总管。在21名无异常的儿童中，6名新生儿中的2名、5名婴儿中的4名以及全部10名幼儿的主胰管可见。MRCP对胆总管囊肿患者的诊断准确率为100%，对先天性胆道闭锁患者为100%，对胆胰管异常连接患者为69%。
采用相控阵线圈的HASTE序列MRCP是一种用于显示幼儿胰胆管系统的非侵入性技术。
