Parameter | < 50% stenosis | ≥ 50% stenosis | Value | P | |
---|---|---|---|---|---|
(n = 222) | (n = 69) | ||||
RPSV (cm/s) | 112.50 (90.00,139.00) | 256.00 (190.00,372.50) | − 10.341 | < 0.001 | |
RAR | 0.92 (0.67,1.23) | 1.50 (1.21,2.90) | − 7.997 | < 0.001 | |
RIR | 3.20 (2.40,4.36) | 8.12 (6.31,15.73) | − 10.477 | < 0.001 | |
IPSV (cm/s) | 36.67 ± 12.13 | 30.51 ± 14.04 | 3.541 | < 0.001 | |
IEDV (cm/s) | 11.82 ± 4.47 | 12.29 ± 4.95 | − 0.751 | 0.454 | |
IRI | 0.66 ± 0.11 | 0.58 ± 0.14 | 5.398 | < 0.001 | |
AT | < 0.07 s | 180 (81.1%) | 28 (40.6%) | 42.354 | < 0.001 |
≥ 0.07 s | 42 (18.9%) | 41 (59.4%) |