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Comparison of Imaging-Guided and Non–Imaging-Guided Quantitative Sonography of the Calcaneus with Dual X-Ray Absorptiometry of the Spine and Femur

F. M. Lomoschitz1, S. Grampp1, C. B. Henk1, K. F. Linnau1, C. R. Kresta1, H. Resch2 and H. Imhof1

1 Department of Radiology, University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria.
2 Department of Internal Medicine, Krankenhaus der Barmherzigen Schwestern, A-1060 Vienna, Austria.



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Fig. 1. 63-year-old woman with osteoporosis. White circle on digital sonogram of calcaneus shows automatically depicted region of interest at area of lowest attenuation.

 


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Fig. 2. Scattergram shows relationship between dual X-ray absorptiometry of spine (L1–L4) T-score and non–imaging-guided quantitative sonography T-score in all women (n = 73) (95% confidence intervals are indicated by dotted lines). r = 0.41, p < 0.001.

 


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Fig. 3. Scattergram shows relationship between dual X-ray absorptiometry of spine (L1–L4) T-score and imaging-guided quantitative sonography T-score in all women (n = 73) (95% confidence intervals are indicated by dotted lines). r = 0.35, p < 0.001.

 


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Fig. 4. Scattergram shows relationship between imaging-guided quantitative sonography T-score and non–imaging-guided quantitative sonography T-score in all women (n = 73) (95% confidence intervals are indicated by dotted lines). r = 0.63, p < 0.0001.

 

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