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. 2015 Sep 29;5:14634. doi: 10.1038/srep14634

Table 7. Algorithms and mathematical equations used in data analysis.

Description Formula Reference number
Diameter of islets using the perimeter Inline graphic (1)
Diameter of islets using the area Inline graphic (2)
Mean diameter Inline graphic (3)
Mean islet radius Inline graphic (4)
Mean islet volume Inline graphic (5)
Mean islet 3D surface area Inline graphic (6)
Total number of islets in the pancreas Inline graphic (7)
Total islet volume Inline graphic (8)
π Inline graphic (9)
Ratio between islet perimeter and mean islet diameter Inline graphic (10)
Index of sphericity Inline graphic (11)
Gaussian smoothing function Inline graphic (12)
Total mass calculated according to specific tissue density and islet volume Inline graphic (13)
k-means clustering Inline graphic (14)