Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12880-018-0293-1/MediaObjects/12880_2018_293_Fig1_HTML.png)
Definitions of the Self-referenced and Referenced measurement methods and their calculation rules for assessing BA plaque
Definitions of the Self-referenced and Referenced measurement methods and their calculation rules for assessing BA plaque