Comparison of QCT and DXA : Osteoporosis Detection Rates in Postmenopausal Women
Joint Authors
Sun, Wei-jie
Cheng, Xiao-guang
Tian, Wei
Li, Xin-min
Xu, Li
Li, Na
Source
International Journal of Endocrinology
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-27
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Objective.
To compare the osteoporosis detection rates in postmenopausal women when measuring bone mineral density (BMD) with quantitative computed tomography (QCT) in the spine versus dual X-ray absorptiometry (DXA) in the spine and hip and to investigate the reasons for the discrepancy between the two techniques.
Methods.
Spinal volumetric BMD was measured with QCT, and areal spinal and hip BMDs were measured with DXA in 140 postmenopausal women.
We calculated the osteoporosis detection rate for the two methods.
Lumbar CT images of patients who had a discrepancy between QCT and DXA findings were reviewed to evaluate vertebral fractures, spinal degeneration, and abdominal aortic calcification.
Results.
For the entire 140 patients, the detection rate was 17.1% for DXA and 46.4% for QCT, a significant difference (P < 0.01).
Of the 41 patients with conflicting diagnoses, 7 whose diagnosis by QCT was osteoporosis had vertebral fractures even though their DXA findings did not indicate osteoporosis.
Varying degrees of spinal degeneration were seen in all of the 41 patients.
Conclusion.
QCT may avoid the overestimation of BMD by DXA associated with spinal degeneration, abdominal aortic calcification, and other sclerotic lesions.
It may be more sensitive than DXA for detecting osteoporosis in postmenopausal women.
American Psychological Association (APA)
Li, Na& Li, Xin-min& Xu, Li& Sun, Wei-jie& Cheng, Xiao-guang& Tian, Wei. 2013. Comparison of QCT and DXA : Osteoporosis Detection Rates in Postmenopausal Women. International Journal of Endocrinology،Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-506201
Modern Language Association (MLA)
Li, Na…[et al.]. Comparison of QCT and DXA : Osteoporosis Detection Rates in Postmenopausal Women. International Journal of Endocrinology No. 2013 (2013), pp.1-5.
https://search.emarefa.net/detail/BIM-506201
American Medical Association (AMA)
Li, Na& Li, Xin-min& Xu, Li& Sun, Wei-jie& Cheng, Xiao-guang& Tian, Wei. Comparison of QCT and DXA : Osteoporosis Detection Rates in Postmenopausal Women. International Journal of Endocrinology. 2013. Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-506201
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506201