Abstract
Echocardiographic strain waveforms are highly variable, so their interpretation is experience-dependent and subjective. We tested whether an artificial neural network (ANN) can distinguish between strain waveforms obtained at baseline and during experimentally induced acute ischemia. An open-chest model of coronary occlusion and acute ischemia was used in 14 adult pigs. Strain waveforms were obtained using a GE Vivid 7 ultrasound system. An ANN design was implemented in MATLAB®, and backpropagation and "leave-one-out" processes were used to train and test it. Specificity of 86% and sensitivity of 87% suggest that ANNs could aid in diagnostic prescreening of echocardiographic strain waveforms.
Original language | English (US) |
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Pages (from-to) | 416-424 |
Number of pages | 9 |
Journal | Computers in Biology and Medicine |
Volume | 38 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2008 |
Keywords
- Acute myocardial ischemia
- Artificial neural network
- Strain echocardiography
ASJC Scopus subject areas
- Computer Science Applications
- Health Informatics