Fig. 2
From: Diagnostic accuracy of dual energy computed tomography for suspected pyogenic spondylodiscitis
Quantitative disc analysis in CT 135 kVp images and in DECT cMap reconstructions. NADs are compared with ADs separately for the DDD group and the SD group. The plots are based on the data reported in the results section. DDD group: NAD: 99.1 ± 7.3 SD HU (AF) vs. 97.5 ± 20.3 SD HU (NP) in 135 kVp; AD: 95.8 ± 24.6 SD HU (AF) vs. 87.8 + 36.0 SD HU (NP) SD group: NAD: 105.0 ± 25.0 SD HU (AF) vs. 95.5 ± 16.9SD HU (NP); AD: 85.8 ± 31.2 SD HU (AF) vs. 68.0 ± 28.3 SD HU (NP); ILs in ADs (44.1 ± 20.7 SD HU (IL) vs. 67.9 ± 28.2 SD HU (NP) 135kVp. NADs with n = 28; DDD with n = 10; SD with n = 18. AF: Anulus fibrosus; cMap: Collagen-/chondroitin-sensitive map; DDD: Degenerative disc disease; IL: Inflammatory lesion; NAD: Normal-appearing disc; NP: Nucleus pulposus; AD: Abnormal disc; SD: Spondylodiscitis; HU: Hounsfield units.
