Table 1.

Comparison of PETRA-MRA/TOF-MRA and DSA in measurements of stenosis.

	Mean ± SD	CV (%)	p *	Bias	LOA	r #	ICC
Stenosis (100%, Pre-operative)
DSA	54.5 ± 25.8	Reference	Reference	Reference	Reference	Reference	Reference
PETRA-MRA	53.4 ± 27.2	4.6	0.10	1.1	(−8.3, 10.5)	0.96	0.98
TOF-MRA	62.0 ± 25.6	11.0	<0.001	−7.5	(−29.0, 13.9)	0.85	0.87
Stenosis (100%, Post-operative)
DSA	39.3 ± 13.6	Reference	Reference	Reference	Reference	Reference	Reference
PETRA-MRA	40.6 ± 13.7	5.4	0.18	−1.3	(−11.9, 9.3)	0.90	0.92
TOF-MRA	84.9 ± 19.7	20.9	<0.001	−45.6	(−86.7, −4.6)	0.26	0.05

^*Comparison between MRA and DSA.

^#Spearman correlation.

SD, standard deviation; CV, coefficient of variation; LOA, limit of the agreement; ICC, intra-class coefficient.