Abnormal:presence of (1) increased thickness, or (2) hypo-echogenicity, or (3) vascularity >grade 2Presence of hypo-echoic regions (undefined) Gisslén et al. (2007)Normal Abnormal:presence of (1) increased thickness, or (2) hypo-echogenicity, or (3) vascularity >grade 2Presence of hypo...
The intensity of an ultrasound grayscale image (B-mode) is determined based on the amplitude of the backscattered signals resulting from the interactions between acoustic scatterers and the incident wave. When the degree of an acoustic impedance mismatch is increased, the signal amplitude and the ...