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Abstract #1009

New Possibilities for Myocardial Strain Imaging using Acceleration and Iterative Reconstruction

Andreas Greiser 1 , Christoph Forman 1 , Jens Wetzel 2 , Michael Zenge 3 , Marie-Pierre Jolly 4 , and Edgar Mueller 1

1 Siemens AG, Healthcare, Imaging & Therapy Systems, Magnetic Resonance, Erlangen, Bavaria, Germany, 2 Department of Computer Science, Friedrich-Alexander-Universitt Erlangen-Nuernberg, Pattern Recognition Lab, Erlangen, Bavaria, Germany, 3 Siemens Healthcare, NY, United States, 4 Imaging and Computer Vision, Siemens Corporate Technology, Princeton, NJ, United States

Myocardial strain imaging (MSI) using higher PAT acceleration in combination with iterative reconstruction was explored. Using a speed-up factor of 4, we propose A) multiple incremental applications of the tag preparation in different cardiac phases to increase the tag contrast, B) to cover two heartbeats after tag application to include a later heartbeat with virtually no tagging contrast to improve the quantitative strain analysis and C) to enable the estimation of a global T1 value from a tagging image series enabled by covering multiple heartbeats. Iterative reconstruction significantly improved the image appearance and tag visibility in accelerated MSI.

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