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Table 2: Characteristics of 69 ulcers detected by CE-MRA by reader 1 and TOF-MRA ulcer-detection percent for each characteristic
Characteristics Detected by CE-MRA^{^a} Detected by TOF-MRA^{^b} (among Those Detected by CE-MRA)
IQ score 
    1 28 (41) 18 (64)
    2 41 (59) 27 (66)
Ulcer orientation^{^c} 
    Perpendicular 47 (68) 28 (60)
    Distally pointing 16 (23) 15 (94)
    Proximally pointing 6 (9) 2 (33)
Ulcer location relative to point of maximum stenosis^{^c} 
    Proximal 36 (52) 26 (72)
    Isolevel 14 (20) 5 (36)
    Distal 19 (28) 14 (74)
Ulcer location relative to FD 
    Proximal 18 (26) 13 (72)
    Isolevel 28 (41) 19 (68)
    Distal 23 (33) 13 (57)
Ulcer circumferential location 
    Opposite FD 44 (64) 29 (66)
    Along FD 0 (0) 0 (N/A)
    On sidewalls 25 (36) 16 (64)
Ulcer neck-to-depth ratio^{^c} 1.61 (0.56) 1.71 (0.57)
Ulcer volume index (mm³)^{^c} 67.63 (66.50) 81.83 (75.09)
Degree of stenosis (%)^{^c} 27.16 (18.06) 23.4 (16.10)
↵a Data are presented as number of ulcers (% of 69) or mean (SD).
↵b Data are presented as number of ulcers (% in category) or mean (SD).
↵c P < .05 in univariable regression model.