Table 2 Comparison of myocardial perfusion parameters between INOCA and control groups.

From: Adenosine stress myocardial perfusion imaging and myocardial work in evaluating INOCA

Groups

Number of examples

Rest

Stress

CFR

A-value

β-value

A x β-value

A-value

β-value

A x β-value

INOCA Group

62

0.57 (0.27, 1.06)

10.77 ± 1.38

6.16 (3.04, 11.47)

0.23 (0.13, 0.45)

10.71 (9.47, 11.62)

2.15 (1.24, 4.81)

0.46 (0.28, 0.66)

control subjects

48

0.77 (0.25, 2.95)

9.72 ± 1.82

7.18 (2.34, 27.02)

0.35 (0.13, 1.73)

9.61 (8.56, 10.48)

3.22 (1.36, 14.92)

0.63 (0.40, 1.00)

P-value

 

0.706

0.001*

0.947

0.085

0.031*

0.096

0.003*

  1. INOCA refers to ischemia with non-obstructive coronary artery disease; A value is peak signal intensity; β -value is Perfusion intensity; and A × β -value is myocardial blood volume.
  2. *P < 0.05.
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