Lisa L Blodgett

US Patent:

20030055352, Mar 20, 2003

Filed:

Jan 25, 2002

Appl. No.:

10/048110

Inventors:

Carleton Hayek - Ellicott City MD, US
W. Thompson - Baltimore MD, US
Joseph Lombardo - Annapolis MD, US
Lisa Blodgett - Ellicott City MD, US
Charles Cooperman - Highland MD, US

International Classification:

A61B005/04

US Classification:

600/516000

Abstract:

A method of diagnosing pathologic heart conditions in which a time series of heart sounds is filtered and parsed into a sequence of individual heart cycles. A systolic interval as well as systolic sub-intervals are identified for each heart cycle. An energy value is computed for the systolic sub-interval of one or more heart cycles. The energy value computed is proportional to the energy level associated with the filtered series of heart sounds. A composite energy value is then computed for the systolic sub-intervals of one or more heart cycles and compared to a threshold level in order to distinguish between a normal heart and a pathologic heart. The system corresponding to the method is comprised of a portable computing device that manages data collection and stores data collected from new patients, and analyzes data.