The pressure half-time index is the time it takes for the ... total stroke volume returns to the LV retrograde across the aortic valve during diastole. A regurgitant fraction of < 20% indicates ...

The pressure half-time index is the time it takes for the ... the regurgitant orifice (in the case of aortic regurgitation, the aortic valve). (Zoghbi WA, et al. J Am Soc Echocardiogr.

As your heart beats, it pumps blood from the left ventricle through the aortic valve and into the aorta, your body’s largest artery. The aortic valve is made up of three triangular flaps of ...

Calculation of Mitral Valve Area in Mitral Stenosis: Comparison of Continuity Equation and Pressure Half Time With Two-Dimensional Planimetry in Patients With and Without Associated Aortic or ...

A study led by bioengineers at the University of California San Diego sheds new light on how a type of heart valve disease, called aortic valve ... to elicit the other half of the story." ...