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, GRE^TI1 and GRE^TI2, 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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