Seed prioritized unwrapping (SPUN) for MR phase imaging.

Background: Region-growing-based phase unwrapping methods have the potential for lossless phase aliasing removal, but generally suffer from unwrapping error propagation associated with discontinuous phase and/or long calculation times. The tradeoff point between robustness and efficiency of phase unwrapping methods in the region-growing category requires improvement.

Purpose: To demonstrate an accurate, robust, and efficient region-growing phase unwrapping method for MR phase imaging applications.