Adaptive Coil Combination Using a Body Coil Scan as Phase Reference

Combining images from multi-channel coils is challenging with respect to maximizing signal-to-noise ratio (SNR), providing an image phase for phase-sensitive techniques, and avoiding artifacts. This work combines advantages of two previously proposed groups of techniques: coil sensitivity estimations based on a separate calibration prescan including the body coil, and adaptive combination based on the image data themselves. The approach is to use the former for phase correction, prior to application of the latter. High quality, artifact free combined images with smooth phase can be achieved robustly and efficiently.

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