Fast Whole Brain Susceptibility Imaging using 3D Spiral

Bing Wu¹, Wei Li¹, Alex Avram¹, Arnaud Guidon¹, Chunlei Liu¹

Quantitative susceptibility mapping are usually calculated using the phase information obtained using 3D SPGR, which features long scan time due to the long echo time required and the line by line sample acquisition nature. We show the use of a 3D stack-of-spiral sequence may be a much more time efficient substitute to 3D SPGR. In an experiment conducted, very similar susceptibility maps, both qualitatively and quantitatively, are obtained using 3D SPGR and 3D spiral. However the 3D spiral sequence features a 13 times shorter scan time comparing to 3D SPGR for the same brain region coverage.