Metabolite Mapping with Extended Brain Coverage Using a Fast Multisection MRSI Pulse Sequence and a Multichannel Coil

Table 1

Comparisons of signal amplitudes acquired on a phantom with or without spacing between slices. Means and SD were calculated using (2). n is the number of selected voxels in the 4th slice. The TR was 2.3 s for tests 1 and 2, and 3.0 s for test 3. The labeled concentrations for NAA, Cr, and Cho were 12.5, 10.0, and 3.0 mM, respectively.

Test	NAA; (mean ± SD)	Cr; (mean ± SD)	Cho; (mean ± SD)
1 (𝑛=47)	1.26%±4.16%	1.71%±3.23%	1.05%±5.82%
2 (𝑛=39)	0.51%±4.22%	0.07%±6.15%	−0.47%±4.17%
3 (𝑛=49)	0.47%±3.29%	−1.73%±4.43%	−0.84%±4.82%