Patent ID: 9689949
Date: 2017-06-27
CPC Classifications: G01R

Claim:
1. A method for phase unwrapping in phase contrast magnetic resonance (MR) imaging, the method comprising: acquiring a sequence of phase contrast MR data representing a patient, the phase contrast MR data comprising first values representing a location at respective different times, some of the first values being wrapped values and some of the first values being not wrapped values; calculating positive and negative values with positive and negative direction unwrapping from the first values for each of the different times; determining, for each adjacent pair of the different times, differences between combinations of first, positive, and negative values between the different times of the adjacent pair; selecting between the first, positive, and negative values for each of the different times as a function of a minimization of a sum of the differences across the different times; and generating an image as a function of the selected first, positive, and negative values.