Table 4.

Bland-Altman Comparison of 12-Channel k-t GRAPPA R = 3 and 5 with GRAPPA R = 2

	12-Channel k-t GRAPPA R = 3		12-Channel k-t GRAPPA R = 5		32-Channel k-t GRAPPA R = 5		32-Channel k-t GRAPPA R = 8
	Mean difference $\overline{d}$	$\overline{d}$ ± 1.96 × SD	Mean difference $\overline{d}$	$\overline{d}$ ± 1.96 × SD	Mean difference $\overline{d}$	$\overline{d}$ ± 1.96 × SD	Mean difference $\overline{d}$	$\overline{d}$ ± 1.96 × SD
Peak velocity m/s
Root	0.02	+0.22/ −0.17	0.04	+0.26/−0.18	0.05	+0.23/−0.13	0.14	+1.36/−0.18
AAo	0.03	+0.22/ −0.16	0.05	+0.37/−0.27	0.12	+0.45/−0.21	0.13	+0.44/−0.19
Arch	0.01	+0.20/ −0.17	0.02	+0.18/−0.14	0.03	+0.20/−0.15	0.07	+0.26/−0.11
DAo	0.03	+0.16/ −0.10	0.04	+0.19/−0.12	0.07	+0.28/−0.13	0.14	+0.39/−0.11
Net flow ml/cycle
Root	−1.21	+20.09/−22.51	0.25	+20.92/−20.43	−0.86	+24.02/−25.74	4.38	+23.18/−18.81
AAo	−0.15	+9.37/−9.67	−0.68	+10.61/−12.12	−1.27	+11.23/−13.77	3.62	+22.06/−14.83
Arch	−0.53	+7.83/−8.90	−0.82	+5.52/−7.16	−0.22	+4.99/−5.43	2.18	+13.74/−9.38
DAo	−0.45	+11.01/−11.92	1.17	+9.58/−7.24	−1.27	+14.35/−16.89	1.39	+13.96/−11.18
WSS /Pa
Root	0.002	+0.09/−0.002	0.03	+0.14/−0.03	0.08	+0.45/−0.08	−0.01	+0.19/+0.01
AAo	0.008	+0.09/−0.008	0.02	+0.08/−0.02	0.02	+0.13/−0.02	0.01	+0.11/−0.01
Arch	0.020	+0.07/−0.02	0.02	+0.09/−0.02	0.00	+0.13/0.00	−0.01	+0.13/+0.01
DAo	0.020	+0.09/−0.02	0.01	+0.09/−0.02	−0.03	+0.05/+0.03	−0.02	+0.11/+0.02
Flow curves ml/s
Root	−2.69	+7.10/−12.47	−2.19	+5.09/−9.48	3.75	+24.54/−17.04	10.85	+49.18/−27.47
AAo	1.08	+7.22/−5.06	−1.29	+3.47/−6.06	4.05	+16.05/−7.94	10.76	+36.36/−14.84
Arch	−0.15	+4.52/−4.82	−1.66	+3.26/−6.57	2.82	+14.06/−8.42	6.11	+28.42/−16.20
DAo	0.14	+6.86/−6.58	1.13	+6.33/−4.08	2.59	+16.15/−10.97	5.09	+25.32/−15.14