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!
Tuesday, February 20, 2018
Monday, February 5, 2018
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.
Friday, December 29, 2017
2017 wrap up
The year is winding down and an unmistakable winter weather is gripping the Suwon area. The Center this year has decided on a 7T human MRI purchase, and there was a significant increase in the research personnel in the human fMRI research area. In Dr. Lee's lab, the undergraduate research interns did an excellent job in their research presentations for undergraduate project contests (C-School) to grab a Grand prize for two semesters in a row. There was a significant progress in collaborative research with MDs at SMC, led by Ms. Yoo, on QSM of neurological disease patients. Multiple international invited talks were delivered by Dr. Lee. For research publication, currently one paper is under revision at MRM, and another at Sci Rep (led by Prof. Park JY). Multi-orientation B0 and B1 research has taken off to a promising start in collaboration with Prof. Shim's lab (B0) and KBSI (Dr. Oh S-H, B1). Finally, a brand-new, lab-dedicated research/office space was secured in 2017 and is now being furnished for full use starting January.
Happy new year!
Happy new year!
Saturday, December 16, 2017
KSMRM PhD meeting


PhDs in the Korean Society of Magnetic Resonance in Medicine met at Korea Basic Science Institute (KBSI) in Ochang, about 100 km south of Seoul, on December 1st~2nd. The meeting featured short presentations from many of the principal investigators in the Society, making this a good opportunity for everyone to learn current MR-related projects that are on-going in Korea. The Society is relatively small, but is growing, and one thing that was easy to see in the meeting was that there are a healthy group of young researchers in MR physics and engineering, taking over from an older generation of scientists who pioneered MRI research in Korea from the very early days of MRI. The hosting institute is home of the 2nd 7 Tesla human MRI scanner in Korea. So there was a short tour of the 7T facility in the evening of Dec 1st. The scanner, from Phillips, appeared to be in good shape and well taken care of. It was said that the team wanted to expand research more in the direction of fMRI-based human brain disorder studies.
Wednesday, November 22, 2017
PIERS 2017, Singapore

Tuesday, November 14, 2017
MRI-C.I.E.L.
Magnetic Resonance-Inspired Creative Ideas and Experiments Laboratory, or, Crazy Ideas and Experiments Lab (CIEL) is taking shape slowly in the new space, with half of the furniture delivered last week. The room is now awaiting plumbing and electrical wiring work before the rest of the (big) furniture arrives. Much of the relatively small-scale experimental preparation work which is currently done in the 1st- floor workshop will get moved to the new room, probably early next year. Crazy ideas are welcome!
Tuesday, October 24, 2017
Scientific Advisory Board Meeting
The Scientific Advisory Board meeting was held on Thursday-Friday last week. This is probably the most important official event held this year for the Center. 5 external scientists, 4 from the US, visited for a two-day event featuring faculty seminars and break-up sessions for interviews. The interview part was an interesting one in which graduate students and research fellows were all invited for small-group Q&A sessions, discussing not research, but the Center's operation. The seminar session, occupying most of Thursday, was good for everybody to learn what other groups in the Center are up to. Repeated questions raised by the Board, as well as by ourselves in a wrap-up, are (i) how to define a grand theme of the research for the whole Center, (ii) how to attract talents to work here, and (iii) how to balance global and local (Korean) ways to operate the Center in terms of culture and language. Many who participated in the Meeting came away with an impression that the Center is now more stable and generally on the right track, compared to last year.
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