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3D bSSFP Imaging performance using high performance gradients at 0.5T is comparable to standard field strengths: Clinical use in Temporal Bone MRI

David Volders¹, James Rioux¹, Steven Beyea¹, Chris V Bowen², and Elena Adela Cora¹
¹Diagnostic Radiology, Nova Scotia Health, Halifax, NS, Canada, ²Diagnostic Imaging, Nova Scotia Health, Halifax, NS, Canada

Evaluation of temporal bone MRI scans using a 0.5T high performance gradient head only system reveals high quality visualization of clinically relevant structures using 3D bSSFP imaging.

Figure 1: Representative cross-sectional 3D bSSFP images for a patient at 0.5T (a) and 3T (b) reformatted into various labeled planes (i.-iv.). Key anatomical structures being rated by 2 board certified radiologists are shown. Blue arrow: superior semicircular canal; Yellow arrow: facial (top) and cochear (bottom) nerve; White arrow: superior vestibular (top) and inferior vestibular (bottom) nerve; Green arrow: vestibule; Red arrow: cochlea.

Table 1: Statistical comparison of 0.5T vs clinical field strength scans