Matlab code for free download

The lab's in-house developed Matlab code for susceptibility-induced B0 perturbation was uploaded to the public website for Matlab file exchange. This short code, which was verified in many numerical and phantom experiments over the past year, is the first publicized MRI research tool developed from the lab. For those who are knowledgeable in this subject, most researchers are using k-space-discretized dipolar field convolution for 3D B0 calculation. The proposed method, called generalized susceptibility voxel convolution (gSVC), takes advantage of an analytical formula for the dipolar field from a magnetized rectangular block, and is inherently free from k-space discretization artifacts. Also, its computational speed does not depend on the relative distance between the susceptibility source and the B0 target grids, allowing fast computation for e.g. breathing-induced B0 inhomogeneity in the head. We will see how users out there will respond to the code!

MRM conferences in 2018

Abstract review results were announced on Friday 2/2 for the upcoming Annual Meeting of ISMRM, in Paris. A quick count of the list shows slightly over 6000 abstracts were accepted for presentation. Judging from the submission serial numbers, it appears that possibly as many as 9000 abstracts were submitted (this number likely counts incomplete submissions so the actual number is likely smaller). It seems that this year, the location's popularity has appealed to and attracted more people than in some other years. In Dr. Lee's lab, two abstracts submitted (one on multi-orientation B1 mapping and the other on susceptibility of habenula) were all accepted for poster presentations, which is what was planned. Separately, the Korean Society for MRM is going to hold its annual conference, icMRI, on March 29-31. The conference has just extended its abstract deadline to the 21st of Feb. The lab is submitting 4 student abstracts, all related to B0 inhomogeneity.