During systole a small portion of the mainstream aortic flow is intercepted by the sinus ridge,
or downstream corner of the sinus of Valsalva. This fluid curls back toward the ventricle to …

The aortic sinus vortex is a classical flow structure of significant importance to aortic valve
dynamics and the initiation and progression of calcific aortic valve disease. We characterize …

To clarify the postulate that turbulence may produce ejection murmurs, point velocity and
sound were measured in the ascending aorta of 13 subjects: six with normal aortic valves …

Turbulent blood flow may contribute to a variety of pathophysiological effects. Because of its
postulated importance, this study was undertaken to determine whether turbulent flow does …

This paper describes an analytic and a numerical method for the aortic sinus problem. Both
methods are based on the dynamics of point vortices, and both exploit a particular conformal …

Recent studies indicate that eddy currents generated by the sinuses of Valsalva play an
important role in the physiologic closure of the aortic valve. This process is briefly discussed …

Recent observations1–4 have confirmed Leonardo da Vinci's postulate, made 4 centuries
ago, that the presence of the sinuses of Valsalva, by creating eddy currents and a small …

Turbulent flow simulations are run for five aortic trileaflet valve geometries, ranging from a
valve leaflet orifice area of 1.1 cm 2 (Model A1—very stenotic) to 5.0 cm 2 (Model A5 …

The purpose of this study was to compare transthoracic echocardiography (TTE)
andtransesophageal echocardiography (TEE) in the evaluation of the coronary sinus and its …

SUMMARY A conical hot film anemometer probe was used to measure instantaneous
velocities in the ascending aorta of anaesthetised, open-chest dogs. The probe was …