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Figure 4 Example of the Effect of Contrast Agent Use on DSE in a Patient With Excellent Endocardial Visualization

Quad-screens of end-systolic frames of noncontrast (Online Video 3) and contrast-enhanced (Online Video 4) dobutamine stress echocardiographic (DSE) images from the short axis. Noncontrast images are of excellent quality. Contrast agent administration decreased the image quality and endocardial border definition in certain regions. Still, ischemia was observed in the inferoposterior wall (arrows) in both DSE studies.