Review
Copyright ©The Author(s) 2016.
World J Orthop. Oct 18, 2016; 7(10): 638-649
Published online Oct 18, 2016. doi: 10.5312/wjo.v7.i10.638
Figure 1
Figure 1 Various graft signal intensity. The signal intensity is usually calculated through the SNQ (signal-digital noise ratio), which is obtained through the following formula: SNQ = (ACL graft signal - PCL graft signal)/background signal. According to these measurements, we could have a hyperintense graft (A), a graft with reduced intensity signal but not yet analogous to native ACL (B) and a graft iso-intense to PCL (C). PCL: Posterior cruciate ligament; SNQ: Symbol of national quality; ACL: Anterior cruciate ligament.