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Table 2 Comparison of coronary sinus blood flow and coronary flow reserve

From: Incremental prognostic value of coronary flow reserve determined by phase-contrast cine cardiovascular magnetic resonance of the coronary sinus in patients with diabetes mellitus

 

All patients N = 309

Patients without MACE N = 267

Patients with MACE N = 42

*P-value

CSBF at rest (mL/min)

91.8 ± 37.6

87.2 ± 33.5

121.2 ± 47.9

< 0.001

CSBF during ATP infusion (mL/min)

234.4 ± 81.1**

230.3 ± 80.8**

237.8 ± 83.9**

0.58

ΔCSBF (mL/min)

139.5 ± 66.5

143.1 ± 67.7

116.5 ± 52.6

0.016

Coronary flow reserve

2.7 ± 0.9

2.8 ± 0.9

2.0 ± 0.4

< 0.001

Coronary flow reserve < 2.0

55 (17%)

30 (11%)

25 (60%)

< 0.001

  1. Data are expressed as mean ± standard deviation or number (%)
  2. * P-values represent the difference between patients with and without MACE. ** P < 0.05 vs. CSBF at rest
  3. ΔCSBF = CSBF during ATP infusion – CSBF at rest
  4. Coronary flow reserve = CSBF during ATP infusion / CSBF at rest × 100
  5. ATP adenosine triphosphate, CSBF coronary sinus blood flow, MACE major adverse cardiac events