Fig. 5.

Example of coronary CT angiography cross sections with radiomics analysis in two sample patients. Fig. 5a showed a 61-year-old man presented at our department with typical chest pain with a vulnerable plaque in the mid left anterior descending artery. From left to right, first we have segmented the coronary arteries to locate the coronary plaque, then we have shown three representative first order texture parameters (total energy, entropy and kurtosis, which represent heterogeneity, randomness and flatness of an image respectively), describing the distribution of HU values within a target lesion. Conversely, Fig. 2b demonstrated an 82-years-old woman free of symptoms with an eccentric calcified plaque in the mid right coronary artery. Postprocessing imaging data was performed with dedicated software (Olea Sphere 3.0; Olea Medical, La Ciotat, France).