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http://dx.doi.org/10.5392/JKCA.2012.12.06.353

Diagnostic Coincidence of Radiologic Measurement Methods of the Proximal Femur Anterior-posterior Projection for Assessment of Osteoporosis  

Kang, Yeong-Han (대구가톨릭대학교병원 영상의학과)
Cho, Kwang-Ho (백석문화대학교 방사선과)
Publication Information
The Journal of the Korea Contents Association / v.12, no.6, 2012 , pp. 353-360 More about this Journal
Abstract
The purpose of this study was to determine whether there are relationships between radiologic parameters for osteoporosis by the proximal femur radiograhps and bone mineral density, as assessed by Dual Energy X-ray Absorptiometry(DEXA). Proximal femur anterior-posterior projection were taken from 112 individuals who undergoing DEXA. Radiographic parameters including canal-to-calcar ratio(CCR) and cortical thickness indices(CTI) were measured and compared with bone mineral density($g/cm^2$), T-score. The intramedullary femoral canal width(FW) and calcar width(CW) at osteoporosis group was significantly larger than that of control group. The CCR were correlated negatively with bone mineral density($g/cm^2$)(r=-0.340, p<0.01), and the CTI were correlated positively(r=0.624). The diagnostic accuracy of CCR for osteoporosis was 63.4%, and kappa value was 0.271. And the accuracy of CTI was 67.0%, and kappa value was the level of fair agreement(${\kappa}$=0.258). The proximal femur with large CCR and small CTI had lower T-scores. When evaluating proximal femur anterior-posterior radiographs, those patients with the thinnest femur diaphyseal cortices should be referred for further osteoporosis investigation.
Keywords
Proximal Femur Anterior-posterior Projection; Canal-to-calcar Ratio; Cortical Thickness Indices; Osteoporosis;
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