Table 2

Agreement over classification of aortic stenosis severity, assessed by peak aortic velocity, between standard and hand held echocardiographic devices

Standard device
Hand held deviceNo stenosisMild stenosisModerate stenosisSevere stenosis
Weighted κ = 0.86; agreement = 96%; sensitivity (diagnostic of aortic stenosis) = 100%; specificity = 97.6%.
No stenosis80200
Mild stenosis0410
Moderate stenosis0021
Severe stenosis0001