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Abstract #1917

Combining Multi-channel MP2RAGE Images with Minimized Noise

Jing Zhang1, Bruce Bjornson2, and Qing-San Xiang3

1Applied Science Laboratory, GE Healthcare Canada, Vancouver, BC, Canada, 2Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada, 3Department of Radiology, Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada

Magnetization-prepared rapid gradient echo (MP-RAGE) has been widely used for T1-weighted imaging. In order to overcome B1 field inhomogeneity effect, the MP2RAGE sequence was introduced, with two complex images, GRETI1 and GRETI2, acquired at two inversion times TI1 and TI2. The MP2RAGE images are usually calculated from all the coils first and combined later into a final result. We propose an algorithm for multi-channel MP2RAGE image combination with minimized resulting noise.

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