A-dip of the aortic valve by M-mode echocardiography.
We present a case with the previously unreported finding of an a-dip in the M-mode tracing of the aortic valve. An a-dip is commonly seen in the M-mode tracing of the pulmonic valve motion, and represents near equalization of pulmonary artery and right ventricular end- -diastolic pressures during atrial contraction. M-mode echocardiography has become an ancillary study to the basic two-dimensional examination, but can often convey important features of cardiac hemodynamics quite elegantly, as the present case demonstrates.
Montefiore Medical Center, Albert Einstein School of Medicine Cardiology Bronx, NY, USA. jstathopoulos@nyp.org
Ioannis
I
Stathopoulos
Themistoklis
T
Nissirios
Robert
R
Ostfeld
Garet
G
Gordon
Daniel
D
Spevack
D000328:Adult; D001021:Aortic Valve / Q000000981:diagnostic imaging* / Q000503:physiopathology; D004541:Eisenmenger Complex / Q000000981:diagnostic imaging* / Q000503:physiopathology; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006439:Hemodynamics; D006801:Humans; D014463:Ultrasonography