论文部分内容阅读
目的探讨胰腺炎并发假性动脉瘤的 CT 征象及 CT 在诊断中的价值。方法回顾性分析经手术及 DSA 证实的6例胰腺炎并发假性动脉瘤患者的 CT 资料,分析假性动脉瘤的部位、大小、CT 表现等。结果 6例假性动脉瘤患者中,2例并发于急性胰腺炎,4例并发于慢性胰腺炎。发生于脾动脉2例,位于腺体尾部脾动脉走行区;胃十二指肠动脉及胰十二指上肠动脉分别为2例和1例,位于胰头区域;肠系膜上动脉1例,位于肠系膜上动脉走行区域;瘤体直径3.2～7.0 cm,平均5.8 cm。假性动脉瘤平扫时呈圆形或类圆形低密度病灶,中心密度均匀或不均匀,增强后病灶部分明显强化,与同层面主动脉 CT 值接近,病灶周边存在无强化区域。结论增强 CT 扫描在胰腺炎并发假性动脉瘤的诊断中有重要价值。
Objective To investigate the CT features of CT in the diagnosis of pancreatitis complicated with pseudoaneurysm. Methods The CT data of 6 cases of pancreatitis complicated with pseudoaneurysm confirmed by surgery and DSA were retrospectively analyzed. The location, size and CT findings of pseudoaneurysm were analyzed. Results Of the 6 patients with pseudoaneurysm, 2 were complicated by acute pancreatitis and 4 were complicated by chronic pancreatitis. Occurred in the splenic artery in 2 cases, located in the gland of the tail of the splenic artery walking area; gastroduodenal artery and pancreaticoduodenal superior intestinal artery were 2 cases and 1 case, located in the pancreas region; superior mesenteric artery in 1 case, located in Superior mesenteric artery walking area; tumor diameter 3.2 ~ 7.0 cm, an average of 5.8 cm. Pseudo-aneurysms were round or round-shaped low-density lesions at the time of plain scan. The density of the center was uniform or non-uniform, and the lesion was enhanced obviously after enhancement. Compared with the CT value of the aorta in the same layer, there was no enhancement around the lesion. Conclusion Enhanced CT scan in the diagnosis of pancreatitis complicated with pseudoaneurysm has important value.