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Quantitative bone SPECT/CT applications for cartilaginous bone neoplasms.
Hellenic Journal of Nuclear Medicine 2020 July 28
OBJECTIVE: To evaluate the ability of quantitative values obtained with bone single photon emission computed tomography/computed tomography (SPECT/CT) to differentiate benign from malignant cartilaginous bone neoplasms.
SUBJECTS AND METHODS: Bone SPECT/CT scans of 10 patients with 8 benign cartilaginous bone neoplasms (4 enchondromas, 1 periosteal chondroma, 1 osteochondroma, 1 bizarre parosteal osteochondromatous proliferation, 1 chondroblastoma) and 2 malignant cartilaginous bone neoplasms (1 periosteal chondrosarcoma, 1 chondrosarcoma) were retrospectively analyzed with maximum standardized uptake value (SUVmax), mean SUV (SUVmean), metabolic bone volume (MBV), and total bone uptake (TBU) of primary lesions.
RESULTS: Mean SUVmax of 8 benign and 2 malignant cartilaginous bone neoplasms were 1.93±1.02 (range 0.59-3.41) and 6.07±0.86 (5.46-6.67), respectively with no overlap (P=0.028). Mean SUVmean of those were 1.24±0.71 (range 0.36-2.36) and 4.05±0.30 (3.84-4.26), respectively with no overlap (P=0.00036). Mean MBV of those were 7.17±4.19 (range 3.17-13.77) and 10.29±10.05 (3.19-17.4), respectively with no significant difference (P=0.74). Mean TBU of those were 9.22±8.31 (range 1.15-23.61) and 43.19±43.7 (12.26-74.13), respectively with no significant difference (P=0.47).
CONCLUSION: Standardized uptake value obtained with bone SPECT/CT may be useful to differentiate benign from malignant cartilaginous bone neoplasms, thus helping the orthopedic surgeon towards the most appropriate treatment procedure.
SUBJECTS AND METHODS: Bone SPECT/CT scans of 10 patients with 8 benign cartilaginous bone neoplasms (4 enchondromas, 1 periosteal chondroma, 1 osteochondroma, 1 bizarre parosteal osteochondromatous proliferation, 1 chondroblastoma) and 2 malignant cartilaginous bone neoplasms (1 periosteal chondrosarcoma, 1 chondrosarcoma) were retrospectively analyzed with maximum standardized uptake value (SUVmax), mean SUV (SUVmean), metabolic bone volume (MBV), and total bone uptake (TBU) of primary lesions.
RESULTS: Mean SUVmax of 8 benign and 2 malignant cartilaginous bone neoplasms were 1.93±1.02 (range 0.59-3.41) and 6.07±0.86 (5.46-6.67), respectively with no overlap (P=0.028). Mean SUVmean of those were 1.24±0.71 (range 0.36-2.36) and 4.05±0.30 (3.84-4.26), respectively with no overlap (P=0.00036). Mean MBV of those were 7.17±4.19 (range 3.17-13.77) and 10.29±10.05 (3.19-17.4), respectively with no significant difference (P=0.74). Mean TBU of those were 9.22±8.31 (range 1.15-23.61) and 43.19±43.7 (12.26-74.13), respectively with no significant difference (P=0.47).
CONCLUSION: Standardized uptake value obtained with bone SPECT/CT may be useful to differentiate benign from malignant cartilaginous bone neoplasms, thus helping the orthopedic surgeon towards the most appropriate treatment procedure.
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