Table 1. Comparisons of contrast to noise ratio (CNR) for CODEA MRA/MRV acquired at 7T vs 3T.

The blood vessels are indicated by arrows in Fig. 4, with the sizes of blood vessels corresponding to the thickness of the arrows. The CNR values are given as mean ± standard deviation. The values within the parentheses in the “CNR at 7T” column indicate those from CODEA MRV without phase-mask filtering.

Blood vessels	CNR at 7T	CNR at 3T	Ratio (7T / 3T)
Artery 1 (“large”)	218±55	108±14	2.0
Artery 2 (“medium”)	116±10	72±12	1.6
Artery 3 (“small”)	159±44	51±8	3.1
Vein 1 (“large”)	73±4 (66±5)	42±6	1.7
Vein 2 (“medium”)	77±10 (69±8)	36±3	2.1
Vein 3 (“small”)	67±5 (61±7)	31±2	2.2