Research on femoral neck BMD with CAD based on QCT data
ZHAO Heng1, PAN Shi-nong1, ZHAO Kai2, PAN Xiao-guang2, LI Hong2, ZHAO Yue2, YUE Yong1, GUO Wen-li1, LIAO Wei1, KANG Yan2, GUO Qi-yong1
1. Department of Radiology, the Affiliated Shengjing Hospital of China Medical University, Shenyang 110004, China;2. Neusoft Medical Systems Co., Ltd. Shenyang 110004, China
Abstract：Objective: To evaluate the clinical value of computer-aided diagnosis(CAD) based on QCT data in bone density measurement, through analyzing the correlation of trabecular bone mineral density(BMD), integral BMD, cortical BMD measured by CAD based on QCT data and BMD measured by DXA. Materials and Methods: BMD of femoral neck in 50 patients was measured. Trabecular, integral, cortical BMD were measured by CAD based on QCT data and by DXA. SPSS was used to analyze their relationship. Results: The correlation of trabecular BMD, integral BMD, cortical BMD measured by CAD based on QCT data and BMD measured by DXA were at a high level of significance(P<0.001). The correlation of trabecular BMD measured by CAD based on QCT data and BMD measured by DXA was the highest(r=0.873). Conclusion: CAD based on QCT data could automatically and accurately calculate the femoral neck BMD. It is a useful method to measure BMD.
2008, Vol. 19 
