Quantification of bone metabolic activity in the natural course of fractural lesions measured by quantitative SPECT/CT
- سال انتشار: 1402
- محل انتشار: مجله پزشکی هسته ای و زیست شناسی آسیا اقیانوسیه، دوره: 11، شماره: 1
- کد COI اختصاصی: JR_JNMB-11-1_005
- زبان مقاله: انگلیسی
- تعداد مشاهده: 200
نویسندگان
Department of Molecular Imaging Research, Kobe City Medical Center General Hospital, Japan
Department of Nuclear Medicine, Saitama Medical University International Medical Center, Japan
Department of Nuclear Medicine, Saitama Medical University International Medical Center, Japan
Department of Nuclear Medicine, Saitama Medical University International Medical Center, Japan
Division of Nuclear Medicine, Department of Radiology, Saitama Medical University Hospital, Japan
Department of Nuclear Medicine, Saitama Medical University International Medical Center, Japan
چکیده
Objective(s): While increased uptake at the bone fractural site gradually decreases over time on bone scans, the rate of change has not been quantitatively evaluated. The purpose of this study was to quantify the extent of bone metabolic changes in fractural lesions on bone SPECT/CT. Methods: We reviewed bone scans acquired by dedicated SPECT/CT and chose those scans in which quantitative SPECT/CT of the same range was acquired twice or more. We set the region of interest on lesions of bone fracture and degeneration, and measured the maximum standardized uptake value (SUVmax). From the SUVmax of lesions and the interval between scans, a value for ۳۰-day change in SUVmax was calculated as DSUVmax۳۰d. The relationship between preSUVmax, SUVmax for the first scan of the comparison, and DSUVmax۳۰d was evaluated utilizing a linear least-squares method. Furthermore, we assessed the ability to differentiate between fracture and degeneration using receiver operating characteristics (ROC) analysis and the Mann-Whitney U test. All cases were then categorized into five groups according to preSUVmax. Values of p < ۰.۰۵ were considered statistically significant. Results: We investigated ۱۷۵ scans from ۶۰ patients and analyzed scan combinations for ۱۵۷ fractural lesions and ۲۶۶ degenerative lesions. The relationship between preSUVmax of fractural lesions and DSUVmax۳۰d was approximated as DSUVmax۳۰d =-۰.۱۵×preSUVmax +۱.۳۵ (R۲=۰.۶۰, p< ۰.۰۰۰۱). Area under the curves for all cases, ۳۰≤ preSUVmax, ۲۰≤ preSUVmax < ۳۰, ۱۵≤ preSUVmax < ۲۰, ۱۰≤ preSUVmax < ۱۵, and preSUVmax < ۱۰ were ۰.۷۳, ۰.۸۹, ۰.۸۶, ۰.۸۰, ۰.۹۱, and ۰.۵۹, respectively. Median DSUVmax۳۰d was significantly lower at fractural lesions than at degenerative lesions (-۰.۶۲ vs -۰.۰۴; p < ۰.۰۰۰۱). As for analyses of groups divided by preSUVmax, all median DSUVmax۳۰d for fractural lesions were significantly lower than those of degenerative lesions except for the group with preSUVmax < ۱۰. Conclusion: The increased uptake at the fractural bone lesion observed in the quantitative bone SPECT/CT gradually decreased at the rate of SUV ۰.۱۵ per month, which showed a different trend with degenerative changeکلیدواژه ها
Bone Fractures, Single Photon Emission Computed Tomography, Radionuclide Imaging, Quantification, standardized uptake valueاطلاعات بیشتر در مورد COI
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