Research Topics
| Kawin SetsompopSummaryAffiliation: Massachusetts Institute of Technology Country: USA Publications
|
Detail Information
Publications
Magnitude least squares optimization for parallel radio frequency excitation design demonstrated at 7 Tesla with eight channelsK Setsompop
Department of Electrical Engineering and Computer Science, MIT, Cambridge, Massachusetts, USA
Magn Reson Med 59:908-15. 2008..The experimental results are in good agreement with the simulations, which show significant improvement in the magnitude profile and reductions in the required RF power while still maintaining negligible intravoxel phase variation...
Parallel RF transmission with eight channels at 3 TeslaKawin Setsompop
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
Magn Reson Med 56:1163-71. 2006..Parallel RF transmission may become critical for robust and routine human studies at very high field strengths where B(1) inhomogeneity is commonly severe...- Broadband slab selection with B1+ mitigation at 7T via parallel spectral-spatial excitationKawin Setsompop
Department of Electrical Engineering and Computer Science, MIT, Cambridge, Massachustts 02139, USA
Magn Reson Med 61:493-500. 2009..The results show significant increases in the pulse's spectral bandwidth, with no additional pulse duration penalty and only a minor tradeoff in spatial B1+ mitigation compared to the standard spoke-based parallel RF design... - Slice-selective RF pulses for in vivo B1+ inhomogeneity mitigation at 7 tesla using parallel RF excitation with a 16-element coilKawin Setsompop
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Magn Reson Med 60:1422-32. 2008..6% for parallel excitation. This work demonstrates that excitations with parallel RF systems can provide slice selection with spatially uniform FAs at high field strengths with only a small pulse-duration penalty... - High-flip-angle slice-selective parallel RF transmission with 8 channels at 7 TKawin Setsompop
Department of Electrical Engineering and Computer Science, MIT, 77 Massachusetts Ave, Building 36, Room 766, Cambridge, MA 02139, USA
J Magn Reson 195:76-84. 2008.... - Sparsity-enforced slice-selective MRI RF excitation pulse designAdam C Zelinski
Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
IEEE Trans Med Imaging 27:1213-29. 2008..28 times lower root mean square error than conventionally-designed 15-spoke pulses. To achieve this same level of uniformity, the conventional methods need to use 29-spoke pulses that are 7.8 ms long... - Fast slice-selective radio-frequency excitation pulses for mitigating B+1 inhomogeneity in the human brain at 7 TeslaAdam C Zelinski
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Magn Reson Med 59:1355-64. 2008.... - Accelerated diffusion spectrum imaging with compressed sensing using adaptive dictionariesBerkin Bilgic
Massachusetts Institute of Technology, MA, USA
Med Image Comput Comput Assist Interv 15:1-9. 2012..Further, we demonstrate that a dictionary trained using pdfs from a single slice of a particular subject generalizes well to other slices from the same subject, as well as to slices from another subject... - Blipped-controlled aliasing in parallel imaging for simultaneous multislice echo planar imaging with reduced g-factor penaltyKawin Setsompop
Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
Magn Reson Med 67:1210-24. 2012..We demonstrate the potential of the method for accelerating diffusion imaging by comparing the fiber orientation uncertainty, where the 3-fold faster acquisition showed no noticeable degradation... - Accelerated diffusion spectrum imaging with compressed sensing using adaptive dictionariesBerkin Bilgic
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Magn Reson Med 68:1747-54. 2012..Further, we demonstrate that a dictionary trained using probability density functions from a single slice of a particular subject generalizes well to other slices from the same subject, as well as to slices from other subjects... - Degenerate mode band-pass birdcage coil for accelerated parallel excitationVijayanand Alagappan
AA Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
Magn Reson Med 57:1148-58. 2007..The orthogonal basis set provided by the Butler matrix was found to be advantageous when an orthogonal subset of these modes was used to mitigate B(1) transmit inhomogeneities using parallel excitation...