Heyneman L E, Keogan M T, Tuttle-Newhall J E, Porte R J, Leder R A, Nelson R C
Department of Radiology, Vancouver Hospital and Health Sciences Center, BC, Canada.
J Comput Assist Tomogr. 1999 Mar-Apr;23(2):283-90. doi: 10.1097/00004728-199903000-00020.
To review the normal radiologic appearance of pancreatic transplants that use portal venous and enteric drainage, and to review the appearance of a variety of postoperative complications.
We retrospectively reviewed the computed tomographic (CT) scans, magnetic resonance (MR) images, and ultrasounds of patients who had undergone pancreatic transplantation using portal venous and enteric drainage.
At CT, the normal pancreatic transplant appears as a heterogeneous mass composed of pancreatic parenchyma, vessels, and omental wrap. On MR imaging, a normal transplant demonstrates intermediate signal intensity on T1- and T2-weighted sequences. Sonographic evaluation of a normal transplant reveals a hypoechoic gland that contains readily detectable low-resistance arterial and venous Doppler waveforms. Acute postoperative complications include acute rejection, which has a nonspecific radiologic appearance, and transplant pancreatitis, which is often manifested on CT by stranding of the peritransplant fat. Chronic postoperative complications include small bowel obstructions, graft pancreatitis secondary to obstruction of the Roux loop, and chronic rejection.
Knowledge of the radiologic appearance of the normal pancreatic transplant is required before transplant-related complications can be detected.
回顾采用门静脉和肠内引流的胰腺移植的正常放射学表现，并回顾各种术后并发症的表现。
我们回顾性分析了接受门静脉和肠内引流胰腺移植患者的计算机断层扫描（CT）、磁共振成像（MR）及超声检查结果。
在CT上，正常胰腺移植表现为由胰腺实质、血管和网膜包裹组成的不均匀肿块。在磁共振成像上，正常移植在T1加权和T2加权序列上呈中等信号强度。正常移植的超声评估显示为低回声腺体，其包含易于检测到的低阻力动脉和静脉多普勒波形。术后急性并发症包括急性排斥反应，其放射学表现不具特异性，以及移植性胰腺炎，其在CT上常表现为移植周围脂肪的条索状改变。术后慢性并发症包括小肠梗阻、Roux袢梗阻继发的移植性胰腺炎以及慢性排斥反应。
在检测与移植相关的并发症之前，需要了解正常胰腺移植的放射学表现。
