A comparison of prospective and retrospective respiratory navigator gating in 3D MR coronary angiography Article DOI:
Cite this article as: Du, Y.P., McVeigh, E.R., Bluemke, D.A. et al. Int J Cardiovasc Imaging (2001) 17: 287. doi:10.1023/A:1011675130904 Abstract
A comparison between the prospective and retrospective respiratory navigator gating in MR coronary angiography was performed with eight normal subjects. A three-dimensional (3D) ECG-gated fast gradient echo pulse sequence was used for image data acquisition. The results show that the MR coronary angiography obtained using retrospective gating retains a considerable amount of motion artifacts. In this study, the images acquired using prospective navigator gating demonstrated significantly reduced motion artifacts (
p = 0.009), improved vessel visibility ( p = 0.021) with reduced imaging time ( p = 0.013) compared to the images obtained using retrospective navigator gating. coronary imaging MR imaging MR navigator echoes References
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