Measurement of bone mineral density by heel ultrasound and forearm DXA in clinical practice


Authors: T. Fait;  J. Živný
Authors‘ workplace: Gynekologicko porodnická klinika 1. LF UK a VFN, Praha, přednosta prof. MUDr. A. Martan, DrSc.
Published in: Čes. Gynek.2010, 75, č. 4 s. 340-344

Overview

Objective:
The comparation of two possibilities of bone mineral density measurement – ultrasound and dual energy x-ray absorptiometry.

Design:
Open nonrandomized observation study.

Setting:
Department of Obstetrics and Gynecology, 1st Faculty of Medicine Charles University and General Faculty Hospital Prague.

Methods:
We examined 190 women with mean age 56 years by both methods - Lunar PIXI (dual energy x-ray absorptiometry) on forearm and CUBA Clinical (broadband ultrasound attenuation) on heel. We took personal history for menopause status, hormone replacement therapy, smoking, sport activity and age.

Results:
The incidence of T-scores was the same for both methods, there were differences in Z-scores. In both methods we have seen the same tendencies of interaction with risk factors. Bone mineral density (BMD) respective T-score significantly decreased with age. There were no significant connections between BMD and body mass index (lineary regression test), hormone replacement therapy (paired t-test), smoking and physical exercise (Mann-Whitney U test). T-score was significantly (p<0.003) lower in women with history of fracture (Mann-Whitney U test).

Conclusion:
In spite of totally different principles of measurement both methods are able to screen BMD.

Key words:
bone mineral density, osteoporosis, ultrasound, dual energy x-ray absorptiometry.


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Labels
Paediatric gynaecology Gynaecology and obstetrics Reproduction medicine
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