Gadobutrol Precedes Gd-DTPA in Abdominal Contrast-Enhanced MRA and MRI: A Prospective, Multicenter, Intraindividual Study

Table 2

Qualitative and quantitative analyses results of two contrast-enhanced MRA.

	Gadobutrol			Gd-DTPA
	Reader 1	Reader 2	Average	Reader 1	Reader 2	Average	Average
Qualitative analyses
Large vessels	21.28 ± 2.22	20.68 ± 2.35	20.98 ± 2.21	20.08 ± 2.09	19.95 ± 2.43	20.01 ± 2.18	0.085
Small vessels	6.13 ± 1.16	5.93 ± 1.10	6.03 ± 1.03	5.08 ± 1.66	5.48 ± 1.83	5.28 ± 1.67	0.028
Minute blood vessels	3.45 ± 1.15	3.38 ± 1.28	3.41 ± 1.18	2.68 ± 1.47	2.55 ± 1.47	2.61 ± 1.40	0.007
Quantitative analyses for large vessels
SNR	966.47 ± 318.18	994.07 ± 297.43	991.66 ± 318.11	907.18 ± 321.41	947.19 ± 305.39	927.18 ± 300.42	0.116
CNR	738.37 ± 327.26	829.22 ± 302.37	772.26 ± 316.16	796.47 ± 318.18	791.66 ± 318.11	795.32 ± 310.68	0.132

MRA, magnetic resonance angiography; SNR, signal-to-noise ratio; CNR, contrast-to-noise ratio.