Ultrasound calcaneus and falange in the diagnosis of osteoporosis

Abstract

OBJECTIVES: To determine the sensitivity of ultrasonography in screening for osteoporosis from Ultrasonometry the calcaneus (USQC) in relation to the gold standard DXA (Dual Energy X-ray Absorptiometry). Establish the sensitivity of ultrasonography in screening for osteoporosis based on bone quality by (USQF) Ultrasonometry Phalange against the gold standard DXA. Establish the sensitivity of ultrasonography in screening for osteoporosis based on bone quantity of Ultrasonometry Phalange against the gold standard DXA. METHODS: For diagnostic tests used a descriptive study consists of sample of 125 women between 30 and 90 years who underwent screening BMD (Bone Mineral Densidade) through USQC, USQF (quantitative Phalange Ultrasonometry) and the gold standard DXA spine and femur. RESULTS: At USQC in relation to the column of DXA: S=16% E=97%, VVP=57%, VPN=82% and accuracy of 80% in relation to the femur DXA: S=42.8%, E=97%, VPP=43%, VPN= 96% and accuracy of 93%. In bone quality UBPI (Ultrasound and Bone Profile Index) versus column DXA: S=68%, E=82%, VPP=48%, VPN=91% and accuracy of 79% and the femur DXA: S=77%, E=75%, VPP=17%, VPN=99% and accuracy of 76%. Bone quantity USQF relative to Column DXA: S=77% E=83%, VPP=54%, VPN=93 and accuracy of 81% and in relation to the femur DXA: S=100%, E=75%, VPP=19%, VPN=100% and accuracy 76%. In bone quantity USQC relative to USQF: S=14%, E=95.5% VPP=50%, VPN=74% and Accuracy 72%. CONCLUSION: USQC has no relevance in screening or diagnosis of osteoporosis as compared to the gold standard DXA spine and femur in this study. The USQF considering bone quality was an important factor in the screening or diagnosis of osteoporosis, especially when compared to femoral DXA.