Fig. 1From: Dual-layer spectral detector CT to study the correlation between pericoronary adipose tissue and coronary artery stenosisThe energy spectrum index of three groups of pericoronary adipose tissue. A Normal group. B Non-significant stenosis group. C Significant stenosis group. a. Measurement of Fat attenuation index (FAI40kev). b. Measurement of spectral curve slope (λHU). c. Measurement of effective atomic number (Eff-Z)Back to article page