Application of three-dimensional contrast-enhanced MR angiography in the diagnosis and treatment of aortic coarctation
- VernacularTitle:三维增强磁共振血管造影在主动脉缩窄诊治中的应用
- Author:
Qi LIU
;
Jianping LU
;
Fei WANG
- Publication Type:Journal Article
- Keywords:
Aortic coarctation Magnetre resonance angiography Contrast media Image processing, computer-assisted
- From:
Chinese Journal of Thoracic and Cardiovascular Surgery
2003;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical value of three-dimensional contrast-enhanced MR angiography (3D CE-MRA) in the diagnosis and treatment of aortic coarctation. Methods Twenty-one patients with aortic coarctation underwent 3D CE-MRA with a 3D FLASH sequence after injection of 0.2 mmol Gd-DTPA per kg b. w. The source images were subtracted and transferred to computer workstation subsequently post-procession. In six patients, cardioangiography was performed simultaneously. The diagnoses of all patients of them were proven by surgery. Results There were 6 cases (28.6%) of simple type of aortic coarctation and 15 (71.4%) accompanied other cardiovascular abnormalities. 3D CE-MRA could directly demonstrate the stenotic location, degree, extent and extracardiac vascular abnormalities, which accorded with surgical findings. The depiction of the entirety and collateral vessel formation was very helpful for surgery. It can be easier for pre- and post- operative evaluation. Conclusion 3D CE-MRA is a noninvasive and accurate technique in the diagnosis of aortic coarctation. It could replace the cardioangiography for extracardiac vascular abnormalities, and may be one of the first choice examinations.
