. Author manuscript; available in PMC: 2012 Apr 1.

Published in final edited form as: J Magn Reson Imaging. 2011 Apr;33(4):792–802. doi: 10.1002/jmri.22507

Table 2.

Reproducibility of technique, measured by acquiring data from 3 healthy volunteers.

	volunteer 1		volunteer 2		volunteer 3
	1	2	1	2	1	2
V_S, cm³	224	324	324	288	324	324
V_A, cm³	404	515	403	500	505	570
V_overlap, cm³	427		327		502
Cho/Cre (S)	1.009	1.044	1.198	1.177	1.286	1.290
Cho/Cre (A)	1.067	1.09	1.211	1.162	1.287	1.291
NAA/Cre (S)	1.985	2.093	2.103	2.078	2.196	2.139
NAA/Cre (A)	2.163	2.168	2.138	2.131	2.275	2.293

Each volunteer received two exams, prescribed by two different operators. Each exam contained STANDARD (S) and AUTOSAT+OCTAGONAL (A) MRSI acquisitions. Covered volumes (V_S, V_A) were defined as the volumes within the PRESS box, not covered by sat bands. V_overlap was calculated as intersection between the volumes, covered by AUTOSAT+OCTAGONAL acquisitions. Mean metabolite ratios were calculated within volumes, covered by all four acquisitions of the same subject.