Table 2. Metabolite concentrations [arbitrary units], estimated using the averaged spectra of PD patients and age-matched controls.

	Controls (n = 24)		PD patients (n = 21)
	rostral	caudal	rostral	caudal
S/N	46	41	41	38
FWHM (ppm)	0.107	0.095	0.119	0.095
NAA+NAAG	50.2 4%	40.7 4%	41.0 4%	31.9 3%
GPC+PCh	5.4 2%	6.3 2%	5.2 3%	5.6 2%
Cr+PCr	28.0 3%	27.2 3%	25.0 4%	21.8 3%
Ins+Gly	27.2 6%	21.8 8%	21.9 8%	19.1 9%
Glu+Gln	10.1 37%	5.0 72%	14.1 27%	13.9 23%
GABA+Hcs	43.6 11%	42.6 11%	49.2 8%	48.3 7%
GABA	21.1 18%	18.4 18%	31.8 15%	21.7 15%
GSH	20.7 6%	20.2 6%	14.0 14%	11.9 11%
Dopamine	12.5 17%	12.1 17%	7.8 37%	2.8 78%
HVA	7.2 23%	9.2 17%	11.8 20%	11.2 17%

Also given are the Cramer-Rao lower bounds [%].