Abstract #3887
Tissue Phase Mapping Using Single Breath-hold 4D PCMR
Jennifer Anne Steeden 1 , Grzegorz Kowalik 1 , Andrew Taylor 1 , and Vivek Muthurangu 1
1
Centre for Cardiovascular Imaging, UCL
Institute of Cardiovascular Science, London, United
Kingdom
Magnetic resonance tissue phase mapping (TPM) allows
assessment of the separate directional components of
wall motion. The purpose of this study was to develop a
highly accelerated 4D PCMR sequence (R=8, using SENSE
and UNFOLD) to acquire TPM data across the entire left
ventricle, during a single breath-hold (of 16
heartbeats). Data was acquired in 5 healthy volunteers
and 1 patient. Evidence of dyssynchrony in early LV
diastole was seen in the patient, as well as
significantly lower longitudinal velocities compared to
healthy volunteers. We show that using a novel spiral
UNFOLD SENSE PCMR sequence it is possible to obtain 4D
TPM data in a single breath-hold.
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