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Abstract #1615

MRI with Sub-Millisecond Temporal Resolution: SPIRE Imaging of a High-speed Motion Phantom

Fischer Johannes1 and Michael Bock1
1Dept. of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, Uni, Freiburg, Germany


Imaging sequences with sub-millisecond temporal resolution based on single point imaging (SPI) are very time inefficient. We designed and imaged a motion phantom capable of velocities up to 5.5m/s. A synchronization signal is acquired using a photoelectric barrier and combined with a sequence trigger signal. Reconstructed images show clear delineation of small structures with a spatial resolution of $$$\Delta x$$$=0.67mm and a temporal resolution of $$$\delta t$$$=246μs.

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