Table 2

Accuracy of Diagnosis of Patients With Hypertrophic Cardiomyopathy Based on Measurement of Myocardial Velocity Gradient

PhaseMVG (s−1)SensitivitySpecificityPPVNPV
HCM vs. athlete hearts
 VE≤40.800.620.710.72
 RVF≤70.960.950.960.95
 ACN/A
HCM vs. hypertensive hearts
 VE≤40.890.520.570.88
 RVF≤30.680.520.500.70
 AC≤20.840.850.800.88

AC = atrial contraction; HCM = hypertrophic cardiomyopathy; MVG = myocardial velocity gradient; NPV = negative predictive value; PPV = positive predictive value; RVF = rapid ventricular filling; VE = ventricular ejection.