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European Radiology Experimental
Fig. 3 | European Radiology Experimental

Fig. 3

From: Accuracy and precision of volumetric bone mineral density assessment using dual-source dual-energy versus quantitative CT: a phantom study

Fig. 3

Box and whisker plots show DECT-based mean BMD values for L1 (50 mg/cm3), L2 (100 mg/cm3), and L3 (200 mg/cm3) of 50.47 ± 2.17 mg/cm3, 99.72 ± 1.84 mg/cm3, and 200.48 ± 2.24 mg/cm3, respectively; QCT-derived mean BMD values were 45.16 ± 3.04 mg/cm3, 94.26 ± 2.00 mg/cm3, and 192.66 ± 2.02 mg/cm3, respectively. The red line illustrates the mean and the black box edges represent the 25th and 75th percentiles. Statistical comparison resulted in significant differences between DECT and QCT for L1, L2, and L3 (all p < 0.001). DECT, Dual-energy computed tomography; BMD, Bone mineral density; L, Lumbar vertebra equivalent; QCT, Quantitative computed tomography

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