Bernard Cortet1, Elaine Dennison2, Adolfo Diez-Perez3, Médéa Locquet4, Maurizio Muratore5, Xavier Nogués3, Diana Ovejero Crespo3, Eugenio Quarta5, Maria Luisa Brandi6. 1. Department of Rheumatology and EA 4490, University-Hospital of Lille, Lille, France. 2. MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, UK. 3. Musculoskeletal Research Group, IMIM (Hospital del Mar Medical Research Institute), Centro de Investigación Biomédica en Red en Fragilidad y Envejecimiento Saludable (CIBERFES), ISCIII, Barcelona, Catalonia, Spain. 4. Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium. 5. Vito Fazzi Hospital, Lecce, Italy. 6. FirmoLab Fondazione F.I.R.M.O., Florence, Italy; Department of Biological, Experimental and Clinical Science, University of Florence, Florence, Italy. Electronic address: m.brandi@dmi.unifi.it.
Abstract
BACKGROUND: Radiofrequency Echographic Multi Spectrometry (REMS) is a non-ionizing technology for the densitometric assessment of osteoporosis. It has already been validated in Italian women with respect to the current clinical reference technology, Dual-energy X-ray Absorptiometry (DXA). PURPOSE: Aim of the current study was to assess the diagnostic accuracy of REMS technology with respect to DXA in a wider European clinical context. METHODS: A total of 4307 female Caucasian patients aged between 30 and 90 years underwent DXA and REMS scans at femoral neck and/or lumbar spine (the site depending on the medical prescription). The acquired data underwent a rigorous quality check in order to exclude the erroneous DXA and REMS reports. The diagnostic agreement between the two technologies was assessed, also stratifying for patients' age groups. The ability to recognise previously fractured patients was also investigated. RESULTS: Overall, 4245 lumbar spine scans and 4271 femoral neck scans were performed. The ability to discriminate patients with and without osteoporosis by femoral neck investigation resulted in sensitivity and specificity of 90.4% and 95.5%, respectively. For lumbar spine scans, a sensitivity of 90.9% and a specificity of 95.1% were obtained. The areas under the curve (AUCs) of the Receiver Operating Characteristic (ROC) curve evaluating the ability to discriminate groups of patients with previous osteoporotic fracture using DXA and REMS T-score values were 0.631 and 0.683 (p < 0.0001), respectively, for femoral neck scans, whereas 0.603 and 0.640 (p = 0.0002), respectively, for lumbar spine scans. CONCLUSION: The diagnostic effectiveness of REMS technology at reference anatomical sites for the assessment of osteoporosis has been confirmed in a large series of female patients, spanning from younger and pre-menopausal to elderly women up to 90 years, in a multicenter European clinical context.
BACKGROUND: Radiofrequency Echographic Multi Spectrometry (REMS) is a non-ionizing technology for the densitometric assessment of osteoporosis. It has already been validated in Italian women with respect to the current clinical reference technology, Dual-energy X-ray Absorptiometry (DXA). PURPOSE: Aim of the current study was to assess the diagnostic accuracy of REMS technology with respect to DXA in a wider European clinical context. METHODS: A total of 4307 female Caucasian patients aged between 30 and 90 years underwent DXA and REMS scans at femoral neck and/or lumbar spine (the site depending on the medical prescription). The acquired data underwent a rigorous quality check in order to exclude the erroneous DXA and REMS reports. The diagnostic agreement between the two technologies was assessed, also stratifying for patients' age groups. The ability to recognise previously fracturedpatients was also investigated. RESULTS: Overall, 4245 lumbar spine scans and 4271 femoral neck scans were performed. The ability to discriminate patients with and without osteoporosis by femoral neck investigation resulted in sensitivity and specificity of 90.4% and 95.5%, respectively. For lumbar spine scans, a sensitivity of 90.9% and a specificity of 95.1% were obtained. The areas under the curve (AUCs) of the Receiver Operating Characteristic (ROC) curve evaluating the ability to discriminate groups of patients with previous osteoporotic fracture using DXA and REMS T-score values were 0.631 and 0.683 (p < 0.0001), respectively, for femoral neck scans, whereas 0.603 and 0.640 (p = 0.0002), respectively, for lumbar spine scans. CONCLUSION: The diagnostic effectiveness of REMS technology at reference anatomical sites for the assessment of osteoporosis has been confirmed in a large series of female patients, spanning from younger and pre-menopausal to elderly women up to 90 years, in a multicenter European clinical context.
Authors: Piera Lalli; Claudia Mautino; Chiara Busso; Francesca Bardesono; Marco Di Monaco; Lorenzo Lippi; Marco Invernizzi; Marco Alessandro Minetto Journal: J Clin Med Date: 2022-06-29 Impact factor: 4.964