System And Method For Accelerated Angiographic Magnetic Resonance Imaging

An MRI system for providing a projection image of vascular structures in a 3D volume of a subject, comprising:

• a radio frequency (RF) signal generator and a magnetic field gradient generator which are together configured to provide an imaging protocol comprising a plurality of imaging pulse sequences that further comprise a plurality of RF pulse sequences and magnetic field gradient sequences for acquisition of image data for the 3D volume;
• a gating arrangement configured to synchronize the imaging pulse sequences with heartbeat intervals of the subject;
• and
• an image processing unit configured to generate the projection image based on the image data,
• wherein:
• (i) each imaging pulse sequence is provided during a separate heartbeat interval of the subject;
• (ii) each imaging pulse sequence comprises a plurality of data acquisition sequences;
• (iii) each imaging pulse sequence is configured to generate image data having a spatial resolution that is reduced by a factor F in a direction perpendicular to the projection plane;
• and
• (iv) each imaging pulse sequence comprises F times as many data acquisition sequences as a corresponding imaging pulse sequence that is configured to generate image data having an unreduced spatial resolution in the direction perpendicular to the projection plane.