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. 2017 Aug 21;12(8):e0183222. doi: 10.1371/journal.pone.0183222

Fig 4. Collagen and elastin orientation as quantified by FFT.

Fig 4

The mean collagen fibre orientation from the 6 specimens is given in blue, and the mean elastin orientation is given in red. Error bars indicate standard deviation. Orientation angles from -90° to 90°, with the axial length of the vessel orientated at 0°. Asterisks indicate a significant statistical difference between collagen and elastin orientation as detected via T-test.