Spatiotemporal Characterizations of Spontaneously Beating Cardiomyocytes with Adaptive Reference Digital Image Correlation.
Sci Rep
; 9(1): 18382, 2019 12 05.
Article
in En
| MEDLINE
| ID: mdl-31804542
We developed an Adaptive Reference-Digital Image Correlation (AR-DIC) method that enables unbiased and accurate mechanics measurements of moving biological tissue samples. We applied the AR-DIC analysis to a spontaneously beating cardiomyocyte (CM) tissue, and could provide correct quantifications of tissue displacement and strain for the beating CMs utilizing physiologically-relevant, sarcomere displacement length-based contraction criteria. The data were further synthesized into novel spatiotemporal parameters of CM contraction to account for the CM beating homogeneity, synchronicity, and propagation as holistic measures of functional myocardial tissue development. Our AR-DIC analyses may thus provide advanced non-invasive characterization tools for assessing the development of spontaneously contracting CMs, suggesting an applicability in myocardial regenerative medicine.
Full text:
1
Database:
MEDLINE
Main subject:
Neoplastic Stem Cells
/
Myocytes, Cardiac
/
Embryonic Stem Cells
/
Time-Lapse Imaging
Type of study:
Prognostic_studies
Language:
En
Journal:
Sci Rep
Year:
2019
Type:
Article
Affiliation country:
United States