Fig. 5
From: Diaphragm assessment by two dimensional speckle tracking imaging in normal subjects
Graphical representation of correlation among various diaphragm assessment methods. a Log(Longitudinal strain) vs. thickening fraction (Log Strain = 3.1 – 0.01*Thickening fraction; R2 0.44, p < 0.0001), b Log(Longitudinal strain) vs. caudal displacement (Log Strain = 3.4 + 0.6*Displacement; R2 0.14, p < 0.01), and c Thickening fraction vs. caudal displacement (Thickening fraction = 33.5 + 2.4*Displacement; R2 0.1, p = 0.04)