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  • Title: Analysis of medication-related osteonecrosis of the jaw with bone SPECT/CT: relationship between patient characteristics and maximum standardized uptake value.
    Author: Ogawa R, Ogura I.
    Journal: Dentomaxillofac Radiol; 2021 Dec 01; 50(8):20200516. PubMed ID: 34019434.
    Abstract:
    OBJECTIVE: To analyze medication-related osteonecrosis of the jaw (MRONJ) with bone single photon emission computed tomography (SPECT)/CT, especially relationship between patient characteristics and maximum standardized uptake value (SUV). METHODS: 48 patients with MRONJ who underwent bone SPECT/CT were prospectively included. MRONJ patients were included 34 osteoporosis and 14 bone metastases from 6 lung cancer, 6 breast cancer and 2 rectal cancer. The maximum SUV of the MRONJ patient characteristics were analyzed such as gender, location, underlying disease, medication and staging of MRONJ by Mann-Whitney U test. P-values lower than 0.05 indicate significant differences. RESULTS: Regarding underlying disease, maximum SUV of patients with osteoporosis (18.69 ± 8.57) were significantly higher than those with bone metastases (12.28 ± 4.32, p = 0.005). Furthermore, maximum SUV of MRONJ was a significant difference for medication (denosumab: 13.62 ± 5.70 and minodronate: 22.98 ± 11.73, p = 0.009) and staging of MRONJ (Stage 2: 15.59 ± 8.06 and Stage 3: 21.51 ± 7.15, p = 0.014). CONCLUSION: Maximum SUV assessed by SPECT/CT was significantly increased in MRONJ patients with osteoporosis and Stage 3. Bone SPECT/CT could be an effective tool for the analysis of MRONJ.
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