Systems and methods for self-calibrated, nonlinear phase contrast correction of magnetic resonance images

A non-transitory computer-readable medium having stored thereon instructions which when executed by a processor cause the processor to perform a method of residual phase in phase-contrast magnetic resonance (PCMR) imaging data, the method comprising:

• receiving PCMR image data from an MR scanner system;
• segmenting static tissue from non-static cardiovascular elements of the image data;
• calculating a non-linear fitted-phase basis function, the non-linear fitted-phase basis function based on system artifacts of the PCMR system;
• adding the non-linear fitted-phase basis function to linear fit terms;
• and
• subtracting the result of the adding step from the PCMR imaging data.

A system for self-calibrated correction of residual phase in phase-contrast magnetic resonance (PCMR) imaging data, the system comprising:

• a PCMR scanning apparatus configured to provide PCMR image data;
• a scanner control circuit configured to control the scanning apparatus during image acquisition, the scanner control circuitry in communication with a control processor;
• the control processor configured to execute computer-readable instructions that cause the control processor to perform a method including:
• receiving PCMR image data from an MR scanner system;
• segmenting static tissue from non-static cardiovascular elements of the image data;
• calculating a non-linear fitted-phase basis function, the non-linear fitted-phase basis function based on system artifacts of the PCMR system;
• adding the non-linear fitted-phase basis function to linear fit terms;
• and
• subtracting the result of the adding step from the PCMR imaging data.