低张磁共振胰胆管水成像技术结合肝脏三维容积转移期动态技术增强扫描在壶腹周围病变诊断中的价值

目的 探讨低张磁共振胰胆管水成像技术(MRCP)结合肝脏三维容积转移期动态技术(LAVA)增强扫描在壶腹周围病变诊断中的应用价值.方法 对临床资料完整的壶腹周围病变患者53例,均行常规MRI扫描,同时行低张MRCP及LAVA多期动态增强扫描.结果 53例患者中,4例为壶腹区炎症；25例为壶腹区肿瘤;23例为壶腹区结石,1例为壶腹区十二指肠乳头部憩室.结论 低张MRCP结合LAVA增强扫描能够清晰的显示壶腹周围病灶的形态、范围以及不同病理类型疾病表现出的不同影像学特点,可以为壶腹周围病变定位、定性诊断提供更加可靠、直接的征象,对于外科手术及预后均有较大的指导意义.

The values of hypotonic-MRCP combined with LAVA enhancement scanning in the diagnosis of periampullary diseases

Objective To discuss the value of hypotonic-MRCP combined with LAVA enhancement scanning in patients with obstruction in ampullary portion of choledoch. Methods 53 cases with periampullary diseases proved by operation underwent conventional MRI scan after duodenum was in hypotonicity,and then underwent hypotonic-MRCP and LAVA multi-phase dynamic enhancement scanning. Results Among the 53 patients with periampullary diseases,4 wdre periampullary inflammation;25 were periampullary tumor;23 were periampullary stone. ; 1 were diverticulum .The shape of lesions and the relationship between lesions and surrounding tissues were clearly showed in LAVA sequence. Conclusion Hypotonic-MRCP combined with LAVA enhancement scanning can provide reliable evidence for localization and qualiative diagnosis of periampullary diseases,which is important to surgical operation and prognosis.