Table 4. Overview of the morphometric investigations for sample images in Fig 7.

Morphometric values
	Sample image Fig 7A	Sample image Fig 7B	Sample image Fig 7C
Nd	12	19	28
ε	0.75	0.61	0.75
Nc	34	78	91
$\overline{\phi }$	75.07°	47.90°	143.97°
SDφ	4°	18°	13.8°
$\overline{\alpha }$	26°	37.35°	35.11°
SDα	11°	9°	13°

Images were automatically segmented and the orientation was evaluated by the NBO method. N_d is the number of nuclei, ε is the efficiency of nucleus counting, N_c is the number of cardiomyocytes, $\overline{\phi }$ is the average in-plane fibre orientation, SD_φ is the standard deviation (homogeneity) of the in-plane fibre orientation, $\overline{\alpha }$ is the average inclination of the fibres and SDα is the standard deviation (homogeneity) of the inclination.