T. H. Kim1, N. Pack2, G. Adluru3, E. V.R. DiBella1
1Radiology, University of Utah, Salt Lake City, UT, USA; 2Bioengineering, University of Utah, Salt Lake City, UT, USA; 3Radiology, University of Pennsylvania, Philadelphia, PA, USA
Myocardial perfusion magnetic resonance imaging is emerging as a useful modality to assess myocardial ischemia, although there remain challenges related to artifacts, coverage, and quantitation. Recently a rapid undersampled radial k-space perfusion sequence was shown to have promise for qualitative perfusion imaging and offered reduced artifacts and increased coverage compared to most other current methods. In this report, we present perfusion results of in vivo cardiac MRI using radial and Cartesian measurement techniques. The new undersampled radial imaging method which offers some control over the effective saturation recovery time can provide more reasonable Ktrans estimates over a range of doses as compared with a more conventional Cartesian method.