Table 1:

Frequency of stenosis ratings by location and modality

Scan Type and Location	Side and IJ Stenosis Scorea
	Left				Right
	0	1	2	3	0	1	2	3
CV
High	10	8	9	12	8	11	15	5
Mid	26	1	8	4	34	3	2	0
Low	11	12	8	8	19	10	8	2
MRV
High	9	5	14	11	8	7	14	10
Mid	27	8	2	2	34	5	0	0
Low	16	9	6	8	14	7	6	12

^aScores: 0, none; 1, mild; 2, moderate; and 3, severe stenosis.