JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (2): 94-99.doi: 10.6040/j.issn.1672-3961.0.2016.325

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Cardiac cycle estimation of echocardiography with speckle tracking

JIN Peipei1, SUN Fengrong1*, LIU Fanglei1, YAO Guihua2   

  1. 1. School of Information Science and Engineering, Shandong University, Jinan 250100, Shandong, China;
    2. Cardiology Department of Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
  • Received:2016-08-14 Online:2017-04-20 Published:2016-08-14

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Abstract: A cardiac cycle estimation method of echocardiography was proposed based on block matching speckle tracking. The position and movement of speckles or speckle pattern within the area of myocardial tissue on echocardiographic images was tracked and recorded, by selecting the regions of interest(ROI)inside the myocardial wall. By calculating the displacement of speckles in the ROI, the length and the start of cardiac cycle was estimated with the sum of absolute differences(SAD)algorithm, and the method was validated by simulated echocardiographic sequences. The experiment results showed a high consistency between theoretical values and actual ones of the cardiac cycle. This method could estimate the length and the start of cardiac cycle effectively and reliably.

Key words: diamond search, block matching, echocardiography, cardiac cycle, speckle tracking

CLC Number: 

  • TP391.41
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