Sugiyama M, Baba M, Atomi Y, Hanaoka H, Mizutani Y, Hachiya J
First Department of Surgery, Kyorin University School of Medicine, Tokyo, Japan.
Surgery. 1998 Apr;123(4):391-7.
Anomalous pancreaticobiliary junction (a long common channel), with or without congenital choledochal cyst, is frequently associated with biliary tract carcinoma. We assessed the diagnostic value of magnetic resonance cholangiopancreatography (MRCP) for patients with anomalous pancreaticobiliary junction (PBJ).
In 159 adult patients with pancreatobiliary disease, breath-hold (1 to 18 seconds) MRCP was performed according to a half-Fourier acquisition single-shot turbo spin-echo sequence. In all patients the length of the common channel demonstrated by MRCP was compared with that demonstrated by endoscopic retrograde cholangiopancreatography. In 11 patients with anomalous PBJ (the common channel > or = 15 mm on endoscopic retrograde cholangiopancreatography), the diagnostic accuracy of MRCP for associated biliary diseases was evaluated.
No complications were encountered in performing MRCP. On MRCP, the length of the common channel was calculated to be 15 mm or longer in nine (82%) of 11 patients with anomalous PBJ. In patients with normal PBJ, MRCP identified PBJ with the channel measuring 0 mm in length. MRCP allowed detailed visualization of congenital choledochal cyst (all seven patients) but failed to depict carcinoma (one patient) and mucosal hyperplasia (five patients) of the gallbladder.
MRCP is a noninvasive and accurate imaging method for diagnosing anomalous PBJ and congenital choledochal cyst.
胰胆管汇合异常（长共同通道），无论有无先天性胆总管囊肿，常与胆道癌相关。我们评估了磁共振胰胆管造影（MRCP）对胰胆管汇合异常（PBJ）患者的诊断价值。
对159例患有胰胆管疾病的成年患者，根据半傅里叶采集单次激发快速自旋回波序列进行屏气（1至18秒）MRCP检查。在所有患者中，将MRCP显示的共同通道长度与内镜逆行胰胆管造影显示的长度进行比较。对11例胰胆管汇合异常患者（内镜逆行胰胆管造影显示共同通道≥15mm），评估MRCP对相关胆道疾病的诊断准确性。
进行MRCP检查未出现并发症。在MRCP上，11例胰胆管汇合异常患者中有9例（82%）的共同通道长度计算为15mm或更长。在胰胆管汇合正常的患者中，MRCP显示的汇合通道长度为0mm。MRCP能够清晰显示先天性胆总管囊肿（所有7例患者），但未能显示胆囊癌（1例患者）和胆囊黏膜增生（5例患者）。
MRCP是诊断胰胆管汇合异常和先天性胆总管囊肿的一种无创且准确的成像方法。
