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Abstract #2499

Adaptive 3D Radial MRI Based on Multidimensional Golden Means for Supine Breast Imaging

Peter Siegler1, Rachel W.-C. Chan2, Elizabeth A. Ramsay1, Donald B. Plewes1

1Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; 2Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada

Dynamic contrast-enhanced breast MRI shows a high sensitivity for breast cancer but is commonly done in prone position which complicates its use for image-aided strategies. Recently, supine unilateral breast MRI with compensation for respiratory motion was successfully implemented. However, standard Cartesian sampling has no isotropic spatial resolution, which is desirable for image-aided applications. Here, 3D projection reconstruction based on multidimensional golden means was tested for use in supine breast MRI. The technique allowed post-processed compensation for respiratory motion, which is intrinsic in a supine position of the patient, without the need to choose any motion-compensation settings prior to the scan.