Method and system for quantitative mri using generative ai

A method for quantitative MRI, the method comprising:

• acquiring MR imaging data;
• inputting the MR imaging data into a first generative model trained to reconstruct an image and a second generative model trained to generate quantitative MRI data, wherein the first generative model is constrained by a data consistency term based on measurement data, wherein the second generative model is regularized by a constrained mathematical model fit;
• and
• outputting the reconstructed image and the quantitative MRI data.

A system for quantitative MRI, the system comprising:

• a medical imaging device configured to acquire MR data;
• a memory configured to store a first generative model configured to reconstruct an MR image from the MR data and a second generative model trained to learn a probability density of quantitative map data and generate quantitative map data wherein the quantitative map data generation is constrained by an exponential fit provided by a priori probability density function from the first generative model;
• and
• a processor configured to reconstruct an MR image using the first generative model and generate a quantitative map using the second generative model.