Abstract
Systolic time intervals (STI) obtained from indirect carotid pulse tracings, phonocardiograms, and electrocardiograms (ECG) have been found to correlate well with those obtained by direct catheterization techniques (1, 2). These measurements have been useful in the evaluation of left ventricular function for clinical as well as investigational purposes (3–6).
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Khan, A.H. (1980). Systolic Time Intervals: Comparison of Echocardiographic and Conventional Methods. In: List, W., Gravenstein, J.S., Spodick, D.H. (eds) Systolic Time Intervals. International Boehringer Mannheim Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-46418-8_26
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DOI: https://doi.org/10.1007/978-3-642-46418-8_26
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