Abstract #0050

Whole heart SMS-bSSFP perfusion imaging with high resolution at 1.5T

Sarah McElroy¹, Giulio Ferrazzi², Muhummad Sohaib Nazir¹, Carl Evans¹, Filippo Bosio¹, Nabila Mughal¹, Karl P Kunze³, Radhouene Neji³, Peter Speier⁴, Daniel Stäb⁵, Christoph Forman⁴, Pier Giorgio Masci¹, Reza Razavi¹, Amedeo Chiribiri¹, and Sébastien Roujol¹

¹King's College London, London, United Kingdom, ²IRCCS San Camillo Hospital, Venice, Italy, ³Siemens Healthcare Limited, Frimley, United Kingdom, ⁴Siemens Healthcare GmbH, Erlangen, Germany, ⁵Siemens Healthcare Ltd, Melbourne, Australia

First-pass cardiac magnetic resonance (CMR) perfusion imaging is widely used for non-invasive assessment of coronary artery disease (CAD). Conventional CMR perfusion sequences are limited in spatial coverage and resolution. We have developed a SMS-bSSFP sequence with a total acceleration factor of 16 (multiband (MB) acceleration of 3 x in-plane acceleration of 5.5) and compressed sensing reconstruction to enable 1.5 T CMR perfusion with whole-heart coverage and high (1.4 x 1.4 mm²) in-plane spatial resolution. The results from a preliminary study in 6 patients comparing the proposed acquisition against a conventional 3-slice acquisition are presented.

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