Motion correction using low resolution magnetic resonance images

A computer program comprising machine executable instructions for execution by a computational system and an upsampling neural network, wherein the upsampling neural network is configured to output an upsampled magnetic resonance image with a second resolution in response to receiving a preliminary magnetic resonance image with a first resolution, wherein the second resolution is higher than the first resolution, wherein execution of the machine executable instructions causes the computational system to:

• receive preliminary k-space data descriptive of a region of interest of a subject at the first resolution;
• reconstruct the preliminary magnetic resonance image from the preliminary k-space data;
• receive clinical k-space data descriptive of the region of interest of the subject at the second resolution;
• receive the upsampled magnetic resonance image in response to inputting the preliminary magnetic resonance image into the upsampling neural network;
• and
• provide a motion corrected magnetic resonance image using the upsampled magnetic resonance image and the clinical k-space data.

A method of medical imaging, wherein the method comprises:

• receiving preliminary k-space data descriptive of a region of interest of a subject at the first resolution;
• reconstructing a preliminary magnetic resonance image from the preliminary k-space data;
• receiving clinical k-space data descriptive of the region of interest of the subject at a second resolution, wherein the second resolution is higher than the first resolution;
• receiving an upsampled magnetic resonance image in response to inputting the preliminary magnetic resonance image into an upsampling neural network, wherein the upsampling neural network is configured to output an upsampled magnetic resonance image with the second resolution in response to receiving the preliminary magnetic resonance image with the first resolution;
• and
• providing a motion corrected magnetic resonance image using the upsampled magnetic resonance image and the clinical k-space data.