Noninvasive iPhone Measurement of Left Ventricular Ejection Fraction Using Intrinsic Frequency Methodology.
Authors:Niema M Pahlevan|||Derek G Rinderknecht|||Peyman Tavallali|||Marianne Razavi|||Thao T Tran|||Michael W Fong|||Robert A Kloner|||Marie Csete|||Morteza Gharib
Journal: Critical care medicine
Publication Type: Journal Article
Date: 2017
DOI: 10.1097/CCM.0000000000002459
ID: 28441235
Affiliations:
Affiliations
1Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA.2Advanced Imaging and Spectroscopy Center, Huntington Medical Research Institutes, Pasadena, CA.3Avicena LLC, Los Angeles, CA.4Computing and Mathematical Sciences, California Institute of Technology, Pasadena, CA.5Medical Engineering Department, California Institute of Technology, Pasadena, CA.6Division of Cardiovascular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA.7Cardiovascular Research Institute, Huntington Medical Research Institutes, Pasadena, CA.8Department of Anesthesiology, Keck School of Medicine, University of Southern California, Los Angeles, CA.9Graduate Aerospace Laboratory, California Institute of Technology, Pasadena, CA.||||||||||||||||||||||||
Abstract
The study is based on previously reported mathematical analysis of arterial waveform that extracts hidden oscillations in the waveform that we called intrinsic frequencies. The goal of this clinical study was to compare the accuracy of left ventricular ejection fraction derived from intrinsic frequencies noninvasively versus left ventricular ejection fraction obtained with cardiac MRI, the most accurate method for left ventricular ejection fraction measurement.
