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Table 3 Performance of single photon emission computed tomography myocardial perfusion imaging (SPECT-MPI) stress testing for detecting coronary artery bypass graft patency

From: Utility of nuclear stress imaging for detecting coronary artery bypass graft disease

Stress test

Stress test adequacy

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

Exercise SPECT-MPI (n = 68)

Adequate: MPHR > 80% (n = 26)

77

69

71

75

Inadequate: MPHR ≤ 80% (n = 42)

43

52

47

48

Pharmacologic SPECT-MPI (n = 11)

75

57

50

80

  1. MPHR: Maximum predicted heart rate. PPV: Positive predictive value. NPV: Negative predictive value.