Norman Lee Owsley,Roger Paul Norris,Ralph Walter Zaorski
申请号：
US12228058
公开号：
US08419651B2
申请日:
2008.08.09
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A method includes acquiring vibrational cardiac data from an array of N transducers wherein the transducers are coupled to a human. A master replica is selected from a segment of the vibrational cardiac data. The master replica is correlated with the segment to obtain a plurality of local maxima. Vibrational cardiac data that were emitted during a diastolic interval are extracted from each heart cycle with the aid of the plurality of local maxima. A two-dimensional space-time frequency power spectrum is processed for Equivalent Rectangular Bandwidth, which provides estimates of the energy produced by turbulent blood flow through a coronary stenosis.
