03 Feb Trans-Catheter Double-Frequency Ultrasound Ablator for The Treatment of Aortic Valve Leaflets Calcification

Degenerative aortic stenosis (AS) is the most common heart valve disease in developed countries. The prevalence of AS increases with age and varies from 0.2% at ages 50 to 59 years to 1.3% at 60 to 69 years, 3.9% at 70 to 79 years, and...