System and method for MRI using MR signals from different resonant species in different regions of k-space

A carrier or memory storing a computer program executable by a computer to perform a method comprising:

• acquiring first magnetic resonance signals for a central portion of k-space from a first nuclear or electron species using a first magnetic resonance frequency;
• acquiring second magnetic resonance signals for a peripheral portion of k-space from a second nuclear species different from the first nuclear or electron species using a second magnetic resonance frequency different from the first magnetic resonance frequency;
• combining the first k-space data corresponding to the first magnetic resonance signals and the second k-space data corresponding to the second magnetic resonance signals to form a full k-space;
• and
• generating an image by transformation of the full k-space to image space.

A magnetic resonance imaging method comprising:

• acquiring first magnetic resonance signals for a central portion of k space from a first nuclear or electron species using a first magnetic resonance frequency;
• acquiring second magnetic resonance signals for a peripheral portion of k-space from a second nuclear or electron species different from the first nuclear or electron species using a second magnetic resonance frequency different from the first magnetic resonance frequency;
• combining the first k-space data corresponding to the first magnetic resonance signals and the second k-space data corresponding to the second magnetic resonance signals to form a full k-space;
• and
• generating an image by transformation of the full k-space to image space.