Systolic Time Intervals and New Measurement Methods


Systolic time intervals have been used to detect and quantify the directional changes of left ventricular function. New methods of recording these cardiac timings, which are less cumbersome, have been recently developed and this has created a renewed interest and novel applications for these cardiac timings. This manuscript reviews these new methods and addresses the potential for the application of these cardiac timings for the diagnosis and prognosis of different cardiac diseases.

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Conflict of Interests

The author has been partially supported by Heart Force Medical Inc. as an independent consultant in the past, and before submitting this paper.

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Correspondence to Kouhyar Tavakolian.

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Associate Editor Ajit P. Yoganathan oversaw the review of this article.

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Tavakolian, K. Systolic Time Intervals and New Measurement Methods. Cardiovasc Eng Tech 7, 118–125 (2016).

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  • Pre-ejection period (PEP)
  • Left ventricular ejection time (LVET)
  • Electromechanical delay (EMD)
  • Left ventricular ejection fraction (LVEF)