Norman Lee Owsley,Roger Paul Norris,Ralph Walter Zaorski
申请号:
US13815961
公开号:
US20140187971A1
申请日:
2013.03.18
申请国别(地区):
US
年份:
2014
代理人:
摘要:
Methods and apparatuses are described to obtain cardiac data, which includes acquiring vibrational field cardiac data from a transducer wherein the transducer measures vibration over a surface of a humans body. An unwanted coronary event is separated from vibrational cardiac data. A transient event is extracted from the vibrational cardiac heart cycle data. The transient event occurs during a diastolic interval within a heart cycle. The transient event is evaluated for a condition of coronary artery blood flow turbulence and a condition of health of a coronary artery is assessed from a feature in the vibrational frequency power spectrum estimate.