Sensitivity, specificity, predictive values, and accuracy of dobutamine stress echocardiography with both imaging modalities for the detection of significant coronary artery disease  
| Fundamental imaging | Second harmonic imaging | Significance | |
|---|---|---|---|
| Sensitivity | 64% | 92% | p < 0.001 |
| Specificity | 75% | 75% | NS |
| Accuracy | 65% | 89% | p < 0.001 |