Peripheral contrast-enhanced MRA at open-bore 3 T, with low dose contrast agent / 安徽医科大学学报
Acta Universitatis Medicinalis Anhui
; (6): 1333-1336, 2015.
Article
en Zh
| WPRIM
| ID: wpr-482645
Biblioteca responsable:
WPRO
ABSTRACT
Objective To investigate the feasibility with low dose contrast agent in patients undergoing peripheral magnetic resonance angiography with high spatial resolution at open-bore 3 T scanner. Methods Images of MRA were assessed separately by two radiologists. And the images of DSA were assessed by one radiologist. The degree of the two interobservers' consensus for detection of arterial stenosis was determined by calculating the Kappa coef-ficient. Spearman rank correlation coefficient was used for revealing the relationship between contrast-enhanced MR angiography and DSA,in terms of categories of stenosis. Results For the degree of vessel stenosis, Cohen' s statis-tics revealed excellent agreement between the two observers. There was a significant correlation between DSA and MRA(P<0. 05). Conclusion At this open-bore 3 T scanner, high spatial resolution peripheral magnetic reso-nance angiography is achieved with low dose contrast agent.
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WPRIM
Idioma:
Zh
Revista:
Acta Universitatis Medicinalis Anhui
Año:
2015
Tipo del documento:
Article