* - p value for the difference between Nano group and stenting control
# - p value for the Ferro group and stenting control
$ - p value for the Nano and Ferro groups
NS non-significant (p value>0.05)
Figure 4: Ultrasonic results of the NANOM FIM trial in the virtual histology mode with analysis of the atheroma composition. The figure depicts changes in virtual histology tissue types. The mean percentage of dense calcium, necrotic core, fibrous and fibro-fatty tissue is reported.