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Metabolite Mapping with Extended Brain Coverage Using a Fast Multisection MRSI Pulse Sequence and a Multichannel
Zhengchao Dong1, Feng Liu, Alayar Kangarlu
1Department of Psychiatry, Columbia University College of Physicians & Surgeons, New York State Psychiatric Institute, New York, NY 10032, USA.
International Journal of Biomedical Imaging
|April 17, 2012
Summary
Multisection magnetic resonance spectroscopic imaging (MRS) can now map whole-brain metabolites faster and more comprehensively. Combining MRS with multichannel coils eliminates gaps between slices for improved data acquisition.
Area of Science:
- Magnetic Resonance Imaging
- Spectroscopy
- Neuroscience
Background:
- Multisection magnetic resonance spectroscopic imaging (MRS) is valuable for metabolite mapping.
- Current MRS techniques face limitations in slice acquisition numbers and inter-slice gaps.
- These limitations hinder comprehensive whole-brain analysis within practical scan times.
Purpose of the Study:
- To overcome the limitations of conventional multisection MRS.
- To enhance the efficiency and coverage of whole-brain metabolite mapping.
- To synergize multisection MRS with multichannel coil technology.
Main Methods:
- Integration of multisection spectroscopic imaging with multichannel coil technology.
- Implementation of techniques to eliminate inter-slice gaps.
- Optimization for whole-brain metabolite mapping.
Main Results:
- Elimination of gaps between spectroscopic imaging slices.
- Increased number of slices acquired within realistic scan times.
- Achieved whole-brain metabolite mapping without compromising acquisition speed or signal-to-noise ratio.
Conclusions:
- The synergistic approach effectively overcomes limitations of standard multisection MRS.
- This advancement enables more complete and efficient whole-brain metabolite mapping.
- The combined techniques offer significant improvements for neuroimaging research.
