. Author manuscript; available in PMC: 2008 Jul 7.

Published in final edited form as: Med Phys. 2007 Nov;34(11):4519–4525. doi: 10.1118/1.2795675

TABLE I.

Coefficient of variation (CoV, standard deviation divided by mean) of signal intensities (SI) of raw control and labeled images for each TI₂ in the three regions-of-interest (ROI) acquired with the proposed method with a gradient-echo echo planner imaging (EPI) readout and a Turbo-FLASH (TFL) readout at the 4 T MRI. AC: anterior cingulate; PC: posterior cingulate; WM: central semiovale

	CoV(%) of each TI₂ (ms) for EPI Readouts
ROI	TI₂=1200 ms	TI₂=1500 ms	TI₂=1800 ms	TI₂=2100 ms	TI₂=2400 ms
SI_AC	5.47	5.32	5.18	5.07	5.11
SI_PC	7.04	7.09	7.33	7.31	7.08
SI_WM	5.48	5.38	5.48	5.36	5.36

	CoV(%) of each TI₂ (ms) for TFL Readouts
ROI	TI₂=1200 ms	TI₂=1500 ms	TI₂=1800 ms	TI₂=2100 ms	TI₂=2400 ms
SI_AC	4.04	3.76	3.56	3.51	3.51
SI_PC	5.17	4.63	4.22	3.85	3.48
SI_WM	3.52	3.68	3.84	3.93	4.03