摘要目的：探讨肝脏三维容积超快速多期动态增强扫描（3D CE LAVA）对肝占位性病变的诊断价值。资料与方法：对76例经病理证实的肝脏肿瘤患者行三维容积超快速多期动态增强扫描和2D GRE T1WI增强扫描，并采用最大强度投影（MIP）和MPR方式进行图像重建，统计病变显示率及其强化程度。结果：全肝动脉期多时相三维动态增强MR扫描及其图像重建，可同时显示肝脏肿瘤的动态强化过程和肝血管形态，对肝脏肿瘤的诊断及鉴别诊断提供依据。结论：MRI 3D LAVA多期动态增强扫描无论在病灶的显示及定性诊断方面，还是在病灶血管及肝血管解剖的显示上均较2D GRE T1WI增强扫描具有较高的临床价值。
Abstract：Objective: To study the value of 3D contrast enhanced MRI(3D CE LAVA) in the diagnosis of liver carcinoma. Materials and Methods: 3D LAVA dynamic enhanced MR angiography and Gd-enhanced 2D GRE T1WI scanning were performed in 76 cases of liver carcinoma, maximum intensity projection(MIP) and multiplanar reconstruction(MPR) were used for image reconstruction. The visualization of the liver vessels was noted. Result: 3D CE LAVE and images reconstruction showed the contrast enhanced processes of liver neoplasms and hepatic vascular morphology so as to provide evidence for diagnosis and differential diagnosis of hepatic lesions. Conclusion: The performance of 3D CE LAVE is better than Gd-enhanced 2D GRE T1WI scanning and has a successful value not only in lesion detection and characterization for patients with focal liver lesions, but also in being able to provide more information about the details of lesion hemodynamics and hepatic vascular anatomy.
2008, Vol. 19 
