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Diagnostic agreement of two calcaneal ultrasound devices: the Sahara bone sonometer and the Achilles+

¹ Klinikum Benjamin Franklin, Freie Universität Berlin, Department of Radiology and Nuclear Medicine, Hindenburgdamm 30, 12200 Berlin and ² Institute of Medical Physics (IMP), University of Erlangen, Krankenhausstr. 12, 91054 Erlangen, Germany

View larger version (31K): [in a new window]   Figure 1. Age dependency of quantitative ultrasound parameters of the Achilles+ and Sahara bone sonometer system. (a) Age dependency of Sahara speed of sound (SOS). (b) Age dependency of Achilles+ SOS. (c) Age dependency of Sahara broadband ultrasound attenuation (BUA). (d) Age dependency of Achilles+ BUA. (e) Age dependency of Sahara quantitative ultrasound index (QUI). (f) Age dependency of Achilles+ stiffness.

View larger version (18K): [in a new window]   Figure 2. Correlation of qualititative ultrasound parameters of Achilles+ and Sahara bone sonometer systems. (a) Correlation of broadband ultrasound attenuation (BUA) values. (b) Correlation of speed of sound (SOS) values. (c) Correlation of quantitative ultrasound index (QUI) and stiffness values.