Please click here to obtain permission to reproduce this image.
Click on image to view larger version.

Figure 1 Protocols of Interpretation of Rest, Intermediate Stages, and Peak Exercise and the Process of Blinding the Intermediate Stages
Still images (and Online Videos) in the 2-chamber view at end-systole from a patient who was interpreted as having right coronary artery ischemia with bicycle exercise echocardiography without intermediate-stage images and as having, in addition, left anterior descending coronary artery ischemia with bicycle exercise echocardiography with intermediate stage. Note the smallest left ventricular end-systolic volume at 50 W (stage II) and the left ventricular dilatation at peak. This and the anterior ischemia are not as obvious if rest (R) and peak (P) images were only displayed.
Please see the Appendix for accompanying videos.
|