Table 2

Comparison of exercise versus dobutamine stress echocardiography

Upright/TreadmillSemisupine bicycleDobutamine
Does not allow imaging at intermediate levelAllows for imaging at intermediate and peak levelsAllows for imaging at intermediate and peak levels
Postpeak/postexercise imaging (within 90 s after termination)Postpeak/postexercise imaging (recovery period)Postpeak/postdobutamine imaging (recovery period)
Dynamic LV function assessment, E/e’ assessment (at low levels)Dynamic LV function assessment, E/e’ assessment (at low levels)
Changes in valve disease severity (gradients across stenotic valve, regurgitant volume or effective regurgitant orifice area for mitral regurgitation)Changes in valve disease severity (gradients across stenotic valve)
Slope of change in sPAP
Biphasic wall motion changesBiphasic wall motion changes
Ischaemic thresholdIschaemic threshold
Change in loading condition due to change in posture
Potential drop in heart rate
  • E, early diastolic wave velocity; LV, left ventricle; sPAP, systolic pulmonary artery pressure.