Figure 2

Ultrasonographic techniques and proportion of correct and incorrect diagnoses. In the panel (a) four ultrasonographic techniques are shown in the same speciment to identify surgical induced longitudinal lesion at the lateral margin of the deep digital flexor tendon. In the upper line of the panel, the intrasynovial portion of the tendon is visualized at standard US and at ACUS, before the injection of microbubbles contrast medium. In the line below the corresponding CEUS and the ACEUS are shown. (b) The proportion of correct and incorrect diagnoses of artificial tears are reported in the group of sham and operated specimens (b), and in the group of the operated limbs alone (c). In the group in (b) the proportion of correct diagnoses using ACUS and US is around 50%. This resulted from the poor ability to identify surgical induced longitudinal lesions in the operated limbs (c), where the proportion of incorrect diagnoses with standard US is 100%. Abb: CEUS = constrast enhanced ultrasound; ACEUS = angle contrast enhanced ultrasound; ACUS= angle contrast ultrasound; US = ultrasound.