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Table 2: Diagnostic performance and agreement of CE-MRA and TOF-MRA for arterial stenosis and occlusion in comparison with DSA
DSA No Disease Mild Stenosis (≤50%) High Grade (>50%, <99%) Occlusion
CE-MRA TOF-MRA CE-MRA TOF-MRA CE-MRA TOF-MRA CE-MRA TOF-MRA
No disease 353 324 7 17 0 14 0 5
Mild stenosis (≤50%) 5 4 7 3 7 4 0 8
High grade (>50%, <99%) 0 0 0 0 11 4 1 8
Occlusion 0 0 0 0 0 0 19 19
Note:—n = 410 arterial segments. DSA served as reference standard.
Intermodality agreement for CE-MRA: k = 0.89; 95% CI, 0.84–0.92.
Intermodality agreement for TOF-MRA, k = 0.63; 95% CI, 0.60–0.72.

DSA	No Disease		Mild Stenosis (≤50%)		High Grade (>50%, <99%)		Occlusion
DSA	CE-MRA	TOF-MRA	CE-MRA	TOF-MRA	CE-MRA	TOF-MRA	CE-MRA	TOF-MRA
No disease	353	324	7	17	0	14	0	5
Mild stenosis (≤50%)	5	4	7	3	7	4	0	8
High grade (>50%, <99%)	0	0	0	0	11	4	1	8
Occlusion	0	0	0	0	0	0	19	19