期刊
ULTRASOUND IN MEDICINE AND BIOLOGY
卷 46, 期 9, 页码 2181-2192出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ultrasmedbio.2020.04.028
关键词
High Frequency Imaging; Echocardiography; Medical Imaging; Medical Signal and Imaging Processing
资金
- Novo PreSeed grant
The real time high frame rate (HFR) 2-dimensional ultrasound system, T5, at Duke University is capable of imaging at up to 1000 images per second for adult cardiac imaging. A method for detecting and visual-izing the mechanical contraction fronts using HFR echocardioagraphy-derived Strain Rate Image (SRI) was described in 26 patients. The Tissue Shortening Onset front durations for echocardiographic normal patients were significantly shorter than conduction disorder patients with left bundle branch block (LBBB) with intrinsic conduction and conduction disorder patients without LBBB (non-LBBB) with simulated LBBB (sLBBB). Echo -cardiographic normal patients had significantly higher correlation coefficients between their SRIs and spatially inverted versions of themselves compared to non-LBBB patients with intrinsic conduction and sLBBB. In conclu-sion, SRIs could spatially resolve contractile event fronts in patients. (C) 2020 World Federation for Ultrasound in Medicine & Biology. All rights reserved.
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