Fast MRI Techniques for Abdominal Imaging Simplified: Part 2—Newer Developments

Motion is a major limiting factor in abdominal MRI. Rapid signal acquisition, fast and reduced k-space filling, and partial Fourier techniques, alone or in combination, can reduce scan time. In the previous article, we learnt basics of MR image generation and techniques for rapid signal acquisition and fast k-space filling. Some techniques for reduced k-space filling were also explained. In this second part, we continue to explore k-space and techniques that exploit its unique characteristics and other features inherent in MR signal acquisition such as data redundancy to further accelerate MR signal acquisition and enable ultrafast abdominal MRI.