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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