METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR ANALYZING CARDIOVASCULAR SOUNDS USING EIGEN FUNCTIONS
摘要
Non-invasive methods for detecting arterial disease in vivo include obtaining acoustic signals from a sensor held on an external body region proximate an artery. A complex frequency grid of frequencies and associated lifetimes of the obtained acoustic signals is generated. A predictive model of complex frequencies associated with peak-perturbation acoustic signals attributed to boundary perturbations in vivo that occur with early stage arterial disease is provided. A predictive model of complex frequencies associated with line-perturbation acoustic signals attributed to boundary perturbations in vivo that occur with later stage arterial disease and thickening of arterial junctions is also provided. It is determined whether peak and/or line-perturbation acoustic signals of the predictive models are present to detect whether the subject has arterial disease.
申请公布号
WO2005077004(A2)
申请公布日期
2005.08.25
申请号
WO2005US03873
申请日期
2005.02.08
申请人
CARDIOVASCULAR RESONANCES, LLC;PRAVICA, DAVID, WILLIAM;DAY, ORVILLE, WAYNE, JR.;BROCK, ROBERT, SCOTT
发明人
PRAVICA, DAVID, WILLIAM;DAY, ORVILLE, WAYNE, JR.;BROCK, ROBERT, SCOTT