ArticleAmerican journal of physiology. Heart and circulatory physiology2012
Mapping cardiac surface mechanics with structured light imaging.
Article in American journal of physiology. Heart and circulatory physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 56 citations in OpenAlex.
- Optical mapping of electromechanics in intact organs.Experimental biology and medicine (Maywood, N.J.) · 2020Article
- Putting the pieces together using in vivo optical mapping.Cardiovascular research · 2019Article
- Optocardiography: A Review of its Past, Present and Future.Current opinion in biomedical engineering · 2019Article
- Optical Mapping of Cardiac Electromechanics.Biophysical journal · 2016Article
- Optical Mapping of Membrane Potential and Epicardial Deformation in Beating Hearts.Biophysical journal · 2016Article
- A century of optocardiography.IEEE reviews in biomedical engineering · 2014Review
- Toward panoramic in situ mapping of action potential propagation in transgenic hearts to investigate initiation and therapeutic control of arrhythmias.Frontiers in physiology · 2014Article
- High-resolution, high-speed, three-dimensional video imaging with digital fringe projection techniques.Journal of visualized experiments : JoVE · 2013Article
- 3D absolute shape measurement of live rabbit hearts with a superfast two-frequency phase-shifting technique.Optics express · 2013Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
Cardiovascular disease often manifests as a combination of pathological electrical and structural heart remodeling. The relationship between mechanics and electrophysiology is crucial to our understanding of mechanisms of cardiac arrhythmias and the treatment of cardiac disease. While several technologies exist for describing whole heart electrophysiology, studies of cardiac mechanics are often limited to rhythmic patterns or small sections of tissue. Here, we present a comprehensive system based on ultrafast three-dimensional (3-D) structured light imaging to map surface dynamics of whole heart cardiac motion. Additionally, we introduce a novel nonrigid motion-tracking algorithm based on an isometry-maximizing optimization framework that forms correspondences between consecutive 3-D frames without the use of any fiducial markers. By combining our 3-D imaging system with nonrigid surface registration, we are able to measure cardiac surface mechanics at unprecedented spatial and temporal resolution. In conclusion, we demonstrate accurate cardiac deformation at over 200,000 surface points of a rabbit heart recorded at 200 frames/s and validate our results on highly contrasting heart motions during normal sinus rhythm, ventricular pacing, and ventricular fibrillation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.