Table 4.
The FWHM and SNR in 2 Regions of Interest at Baseline and at 4 Weeks in the FEP Group and the Control Group
| Variable | Mean (SD) | P Value | |
|---|---|---|---|
| FEP Group | Control Group | ||
| Right associative striatum at baseline | |||
| FWHM, ppm | 0.07 (0.01) | 0.08 (0.01) | .03 | 
| SNR | 15.46 (2.39) | 14.78 (2.88) | .41 | 
| Right associative striatum at 4 wk | |||
| FWHM, ppm | 0.08 (0.01) | 0.08 (0.01) | .38 | 
| SNR | 13.83 (4.38) | 15.78 (2.26) | .10 | 
| Right cerebellar cortex at baseline | |||
| FWHM, ppm | 0.07 (0.01) | 0.07 (0.01) | .51 | 
| SNR | 17.69 (2.60) | 17.00 (3.06) | .44 | 
| Right cerebellar cortex at 4 wk | |||
| FWHM, ppm | 0.07 (0.01) | 0.06 (0.01) | .29 | 
| SNR | 16.54 (3.20) | 18.55 (2.72) | .04 | 
Abbreviations: FEP, first-episode psychosis; FWHM, full-width at half maximum; SNR, signal-to-noise ratio.