Fig. 3
From: Anterior cruciate ligament microfatigue damage detected by collagen autofluorescence in situ
Representative fiber orientation distribution analysis results of SHG images of control (A-C) and fatigue loaded ACLs (E-G) from specimen P1. A SHG image of a control ACL, with the cropped ROI shown in B; C Color-coded SHG image showing orientation map of fibers; D Normalized distribution of orientation with a narrow peak with FWHM of 15°; E SHG image of a fatigue loaded ACL with the cropped ROI shown in F; G Color-coded SHG images showing orientation map of fibers; H Normalized distribution of orientation displays a dispersed bimodal distribution with a FWHM of 120°