Type I
Type IIa
Type IIb
Type III
Type I Dysfunction:
Enlargement of the aortic root with normal cusps
Echos findings
Dilatation of any components of the aortic root (aortic annulus, sinuses of Valsalva, sinotubular junction)
Type IIa Dysfunction:
Cusp prolapse with eccentric AR jet
Cusp flail echos findings
Complete eversion of a cusp into the LVOT in long-axis views
Partial cusp prolapse echos findings
Distal part of a cusp prolapsing into the LVOT (clear bending of the cusp body on long-axis views and presence of a small circular structure near the cusp free edge on short-axis views
Whole cusp prolapse echos findings
Free edge of a cusp overriding the plane of aortic annulus with billowing of the entire cusp body into the LVOT (presence of a large circular or oval structure immediately beneath the valve on short-axis views)
Type IIb Dysfunction:
Free edge fenestration with eccentric AR jet
Echos findings
Presence of an eccentric AR jet without definite evidence of cusp prolapse
Type III Dysfunction:
Poor cusp quality or quantity
Echos findings
Thickened and rigid valves with reduced motion
Tissue destruction (endocarditis)
Large calcification spots/extensive calcifications of all cusps interfering with cusp motion