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Table 1 Histological type and apparent diffusion coefficient (ADC) values of 198 bone masses (mean ± SD × 10−3mm2/s)

From: Role of apparent diffusion coefficients with diffusion-weighted magnetic resonance imaging in differentiating between benign and malignant bone tumors

Type of bone masses No. of lesions High SI on T2WI (%) High SI on DWI (%) Range of ADC values Mean ADC value
Benign bone lesions 84 54 (64.3) 50 (59.5) 0.49–1.59 1.17 ± 0.36
Non-ossifying fibroma 17 4 (23.5) 2 (11.8) 0.49–0.99 0.78 ± 0.17
Osteofibrous dysplasia 18 3 (16.7) 1 (5.6) 0.89–1.19 0.97 ± 0.17
Chondromyxoid fibroma 6 5 (83.3) 4 (66.7) 1.18–1.59 1.33 ± 0.15
Langerhans cell histiocytosis 28 28 (100) 28 (100) 0.96–1.55 1.29 ± 0.18
Giant cell tumor of bone 15 14 (93.3) 15 (100) 0.98–1.47 1.21 ± 0.20
Malignant bone lesions 114 101 (88.6) 105 (92.1) 0.58–1.35 0.86 ± 0.20
Chordoma 27 21 (77.8) 24 (88.9) 0.59–1.11 0.80 ± 0.14
Ewing sarcoma 9 6 (66.7) 7 (77.8) 0.70–0.91 0.82 ± 0.07
Osteosarcoma 8 6 (75.0) 5 (62.5) 0.87–1.02 0.97 ± 0.08
Chondrosarcoma 12 10 (83.0) 11 (91.7) 0.69–1.21 0.94 ± 0.15
Plasmacytoma 8 8 (100) 8 (100) 0.68–1.12 0.86 ± 0.15
Primary lymphoma 11 11 (100) 11 (100) 0.68–1.09 0.87 ± 0.14
Metastatic bone tumor 39 39 (100) 39 (100) 0.58–1.12 0.81 ± 0.14
  1. SI, Signal intensity; T2WI, T2-weighted image; DWI, Diffusion-weighted image.