An experimental study of dual source CT approach measuring bone mineral density
JIANG Bao-guo1, LI Song-bai1, CHEN Xiao-zhao2, XUAN Yang2, BAO Nan2, KANG Yan2, BEI Gui-guang1, LI Xiang1
1. Department of Radiology, the First Affiliated Hospital of China Medical University, Shenyang 110001, China;2. Sino-Dutch Biomedical and Information Engineering School of Northeastern University, Shenyang 110004, China
Abstract：Objective: To evaluate the accuracy of DEQCT in determining bone mineral density(BMD) by using dual source CT(DSCT). Methods: BMD of the lumbar vertebral body of pig was measured by our designing software, DEQCT, at DSCT and by SEQCT software of the Neusoft and DEXA. The lumbar body of pig was then calcined, the lime of the calcined material was measured. The measuring results of DEQCT, SEQCT140kV and DEXA were compared. Results: The BMD of the vertebral body and the calcined material measured by DEQCT was (0.5050±0.0434)g/cm3, and (0.5023±0.0353)g/cm3 respectively, there was no significant difference(P=0.779). BMD measured by SEQCT140kV[(0.4813±0.0314)g/cm3] was significantly lower than the measurement of the calcined material. BMD determined by DEXA[(0.4527±0.0360)g/cm2] was significantly lower than the measurement of calcined material and also significantly lower than the results measured by DEQCT and SEQCT(P＜0.05). Conclusion: BMD determined by DEQCT at DSCT is superior to SEQCT and DEXA approach.
2010, Vol. 21 
