Table 4 Evaluation of parent vessel patency

Three-graded scale

Total Occlusion^a

13 (15%)

1 (1%)

1 (2%)

1 (2%)

12 (40%)

0

Stenosis^b

38 (45%)

7 (8%)

22 (40%)

1 (2%)

16 (53%)

6 (20%)

Patent^c

34 (40%)

77 (91%)

32 (58)

53 (96%)

2 (7%)

24 (80%)

Two-graded Simplified Scale

Pathological^a+b

51 (60%)

8 (9%)

23 (42%)

2 (4%)

28 (93%)

6 (20%)

Patent^c

34 (40%)

77 (91%)

32 (58%)

53 (96%)

2 (7%)

24 (80%)