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Table 3 TTFM values of bypass graft

From: Transit time flow measurement predicts graft patency in off-pump coronary artery bypass grafting upon 5-year angiographic follow-up

  MGF (mL/min) PI DF (%)
LIMA    
Patent (n = 192) 35.6 ± 21.4 (6, 130) 2.2 ± 0.8 (0.9, 5.0) 71.0 ± 8.5 (35, 99)
Occlusion (n = 10) 14.3 ± 5.8 (10, 27) 3.2 ± 1.4 (1.5, 5.8) 68.5 ± 9.1 (56, 80)
P value < 0.001 0.049 0.357
DIAG    
Patent (n = 80) 36.6 ± 20.0 (14, 89) 2.3 ± 0.9 (0.9, 5.7) 71.8 ± 8.3 (51, 97)
Occlusion (n = 27) 12.8 ± 6.5 (5, 30) 2.7 ± 1.0 (1.2, 4.4) 70.8 ± 13.1 (41, 96)
P value < 0.001 0.044 0.702
OM    
Patent (n = 95) 37.4 ± 21.1 (15, 125) 2.3 ± 1.0 (0.5, 8.6) 71.4 ± 9.3 (49, 92)
Occlusion (n = 34) 13.6 ± 6.3 (4, 34) 3.4 ± 1.7 (0.9, 10.6) 62.1 ± 9.9 (47, 83)
P value < 0.001 0.001  < 0.001
PDA    
Patent (n = 91) 32.3 ± 19.9 (10, 86) 2.3 ± 1.3 (0.8, 9.6) 66.5 ± 9.8 (27, 85)
Occlusion (n = 38) 7.9 ± 2.8 (3, 13) 3.9 ± 2.1 (1.3, 10.0) 57.5 ± 9.0 (40, 73)
P value < 0.001  < 0.001 0.005
PLA    
Patent (n = 32) 32.5 ± 14.2 (16, 73) 2.0 ± 1.0 (0.3, 4.8) 67.0 ± 9.9 (44, 83)
Occlusion (n = 11) 14.2 ± 5.6 (7, 25) 2.9 ± 1.4 (1.3, 6.3) 67.4 ± 16.5 (42, 98)
P value  < 0.001 0.021 0.925
  1. LIMA, left internal mammary artery; SVG, saphenous vein graft; LAD, left anterior descending artery; DIAG, diagonal artery; OM, obtuse marginal branch of circumflex artery; PDA, posterior descending artery; PLA, left posterior artery; MGF, mean graft flow; PI, pulsatile index; DF, diastolic filtration