Table 1.

TI sampling of the ASL signal and its impact on the accuracy of perfusion estimation.

Number of TIs	TI values (ms)	Mb0∙(1+fss) factor	R	RPFASL–RPFDCE (ml/min)
16	150, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600	13.0 ± 3.9	0.92	−9 ±30
14	150, 200, 300, 400, 500, 700, 800, 900, 1000, 1100, 1300, 1400, 1500, 1600	13.2 ± 4.1	0.91	−9 ±31
12	150, 200, 300, 500, 600, 700, 900, 1000, 1100, 1300, 1400, 1500	14.1 ± 5.8	0.85	−9 ± 44
10	150, 300, 500, 600, 800, 1000, 1100, 1300, 1400, 1600	12.9 ± 4.6	0.86	−8 ±45
8	150, 300, 500, 700, 900, 1100, 1300, 1500	13.0 ± 5.6	0.84	−8 ±42
6	150, 400, 700, 1000, 1300, 1600	13.3 ± 3.8	0.86	−12 ± 37
5	150, 500, 800, 1000, 1500	12.2 ± 5.5	0.84	−5 ±51
4	150, 600, 1100, 1600	11.9 ± 6.2	0.80	−12 ± 52
2	400, 1200	19.2 ± 20.3	0.30	16 ± 243