Aortic sclerosis |
Focal leaflet thickening with normal leaflet motion |
< 2.5 |
< 10 |
3 -4 cm2
|
|
Mild AS |
Mild leaflet thickening with mildly reduced motion |
2.5 – 3 |
10-20 |
1.5-3.0 |
|
Moderate AS |
Mild-moderate Ca++ with moderately reduced leaflet motion |
3-4 |
20-40 |
1.0-1.5 |
|
Severe AS |
Moderate-severe Ca++ with little leaflet motion |
> 4 |
> 40 |
< 1.0 |
Indexed AVA < 0.6 cm2/m2 Velocity ratio < 0.25 |
Low-output low-gradient severe AS with reduced EF |
Severe valve Ca++, reduced leaflet motion |
|
|
|
|
|
Rest |
3-4 |
20-40 |
< 1.0 |
|
|
Dobutamine stress |
> 4 |
> 40 |
< 1.0 |
|
Low-output low-gradient severe AS with normal EF |
Severe valve Ca++, reduced leaflet motion |
3-4 |
20-40 |
<1.0 |
SVi <35 ml/m2, LVH, small LV chamber, reduced longitudinal systolic strain, increased Zva
|
Critical AS |
Severe Ca++ with immobile leaflets |
> 5 |
> 60 |
< 0.6 |
|