Doppler echocardiographic methods to estimate severity of aortic stenosis.
The continuity equation should be regarded as the Doppler echocardiographic gold standard for estimation of valve area in patients with aortic stenosis, but a quick, easy, and inexpensive screening test may be desirable in an era of medical cost containment. Aortic valve leaflet separation could be used as such a test. In fact, it could prove especially useful in cases where calculations using the continuity equation or the fractional shortening-velocity ratio are problematic.
Raggi
P
P
Division of Cardiology, Long Island College Hospital, Brooklyn, New York, USA.
Vasavada
B C
BC
Rodney
E
E
el-Jandali
A
A
Dogan
O
O
Sacchi
T J
TJ
D000368:Aged; D001021:Aortic Valve / Q000000981:diagnostic imaging / Q000503:physiopathology; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006328:Cardiac Catheterization; D015150:Echocardiography, Doppler / Q000295:instrumentation / Q000379:methods*; D005069:Evaluation Studies as Topic; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012680:Sensitivity and Specificity