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Table 6 Sensitivity and specificity of ex vivo coronary artery MRI at spin echo (TE = 50 ms) and T2 image (panel on right). Different artery atheroma features are represented with reference to coronary artery image for distinct tissue components and corresponding T2 parametric image (A) of coronary endarterectomy specimen and right postsegmented image (B) showing different signal intensities (CV %) and their relative appearance on gray scale with varying T2 ranges for different atheroma components.

From: MRI of coronary artery atherosclerosis in rabbits: Histopathology-MRI correlation and atheroma characterization

Atheroma features Signal intensity (CV %) Sensitivity (%) Specificity (%) T2-wt (TE = 50 ms)
Calcium Dark 100 100 Dark
Collagen 14.5(18 %) 95 85 Bright
Lipids 23.0(7.5 %) 90 75 Dark
Lipid core 27.5(7.5%) 100 100 Gray
Fibrous 35.5 (7 %) 85 90 Bright
Elastin 40.7 (13.5 %) 70 80 Gray