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Validation of a New Semi-Automated Technique to Evaluate Muscle Capillarization.

Ballak, SB and Yap, MH and Harding, PJ and Degens, H (2016) Validation of a New Semi-Automated Technique to Evaluate Muscle Capillarization. Advances in Experimental Medicine and Biology, 876. ISSN 0065-2598

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Abstract

The method of capillary domains has often been used to study capillarization of skeletal and heart muscle. However, the conventional data processing method using a digitizing tablet is an arduous and time-consuming task. Here we compare a new semi-automated capillary domain data collection and analysis in muscle tissue with the standard capillary domain method. The capillary density (1481 ± 59 vs. 1447 ± 54 caps mm(-2); R(2):0.99; P < 0.01) and heterogeneity of capillary spacing (0.085 ± 0.002 vs. 0.085 ± 0.002; R(2):0.95; P < 0.01) were similar in both methods. The fiber cross-sectional area correlated well between the methods (R(2):0.84; P < 0.01) and did not differ significantly (~8 % larger in the old than new method at P = 0.08). The latter was likely due to differences in outlining the contours between the two methods. In conclusion, the semi-automated method gives quantitatively and qualitatively similar data as the conventional method and saves a considerable amount of time.

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