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Table 3: SPACE versus DANTE-CAIPI-SPACE (average score of 2 reviewers)^{^a}
SPACE DANTE-CAIPI-SPACE P Value
Qualitative measurements 
    Image quality 2.5 (2–3) 2 (1.5–2.5) <.001
    SNR 1.5 (1–2) 2 (2–2.5) <.001
    Artifacts 3.5 (3–4) 3 (2–3) <.001
    Art. blood suppression 3 (2.5–3.5) 1.25 (1–1.5) <.001
    Lesion 2 (1.5–2.5) 1.5 (1–2) <.001
    Ven. blood suppression 3 (2–3.375) 1.5 (1.125–2) <.001
    Motion 1 (0–2) 0 (0–0.5) <.001
Quantitative measurement 
    Lumen area (mm²) 7.9 (5.5–10.3) 7.6 (4.8–11.0) .45
    Wall area (mm²) 12.6 (9.9–16.3) 12.4 (10.1–14.6) .04
    Lumen CR 0.33 (0.26–0.43) 0.37 (0.27–0.48) .003
    Wall lumen CR 2.3 (1.9–2.6) 1.9 (1.7–2.5) <.001
Note:—Art. indicates arterial; Ven., venous; CR, contrast ratio.
↵a Values are expressed as median (interquartile range).

	SPACE	DANTE-CAIPI-SPACE	P Value
Qualitative measurements
Image quality	2.5 (2–3)	2 (1.5–2.5)	<.001
SNR	1.5 (1–2)	2 (2–2.5)	<.001
Artifacts	3.5 (3–4)	3 (2–3)	<.001
Art. blood suppression	3 (2.5–3.5)	1.25 (1–1.5)	<.001
Lesion	2 (1.5–2.5)	1.5 (1–2)	<.001
Ven. blood suppression	3 (2–3.375)	1.5 (1.125–2)	<.001
Motion	1 (0–2)	0 (0–0.5)	<.001
Quantitative measurement
Lumen area (mm²)	7.9 (5.5–10.3)	7.6 (4.8–11.0)	.45
Wall area (mm²)	12.6 (9.9–16.3)	12.4 (10.1–14.6)	.04
Lumen CR	0.33 (0.26–0.43)	0.37 (0.27–0.48)	.003
Wall lumen CR	2.3 (1.9–2.6)	1.9 (1.7–2.5)	<.001