Data Analysis of The Aortic Valve Complex Measured by Digital Sonomicrometry

Document Type

Presentation Abstract

Presentation Date

9-28-2000

Abstract

Motivation: In order to develop advanced techniques of repair and more biologically correct instruments of replacement, further study of the aortic valve structure and function is essential. The analysis focuses on the left ventricular myocardium, the aortic valve and the ascending aorta working together as a unit.

Method: Digital sonomicrometry yields data which illustrates the cardiac cycle in two and three-dimensional manners. The key benefit of the method is a high frequency sampling rate (200 Hz) which provides measurements that are yet even closer to the continuous nature of the cycle. Fifteen crystals are placed at specific points in the structure. These crystals report values of distance between each other, which are used to form geometric shapes that are continually changing in size.

Goals: Analysis of the data will include both summary statistics and continuous models that will describe the behavior of various locations within the structure. Relationships between location behavior and pressure (LV and AA) will be analyzed. Ideally, a more advanced understanding of the structure's behavior will lead to successful surgical techniques.

Additional Details

Thursday, 28 September 2000
4:10 p.m. in Math 109
Coffee/treats at 3:30 p.m. Math 104 (Lounge)

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