SMT-08X Dual Energy X-Ray Bone Densitometer

Technical Specification

1. Measurement principle: dual-energy X-ray bone densitometer, using dual-energy X-ray absorptiometry (DXA), a single exposure generates both high-energy and low-energy X-ray energies simultaneously.

2. Measurement site: arm and forearm, including ulna and radius.

3. Test population: children (0-20 years old), adults (20-100 years old).

4. All-in-one fully enclosed lead protection design, built-in workstation, free of protection

5. Equipped with three calibration modules to provide daily quality control and calibration.

6. Ray tube voltage: low energy 45kV, high energy 70kV;

7. X-ray tube voltage deviation value measured -0.63%;

8. Ray tube current: low energy 0.45mA, high energy 0.25mA;

9. X-ray tube current deviation value measured ≤ 4%;

10. High and low energy radiation scanning time < 4s;

11. Working noise ≤ 70dB;

12. Accuracy of bone mineral density ≤ ± 2%;

13. Repeatability of bone mineral density measurement, coefficient of variation CV ≤ 1%;

14. The linear correlation coefficient R of bone mineral density measurement results is not less than 0.99;

15. Test area: 90 x 120mm.

16. Focal screen distance: the focus distance of the tube is ≥ 280mm from the supporting arm platform;

17. Target surface reference axis angle 12 °;

18. Focus position reference axis tolerance 0.5mm;

19. Image definition (pixel size) ≤ 156µm × 156µm;

20. Adult calculation parameters: bone mineral density (BMD), bone mineral content (BMC), area (Area), T-value, Z-value, bone mass index (BQI), fracture risk (RRF), age-to-age ratio, adult ratio, biological age of bones, age expected to develop osteoporosis (EOA), BMI index.

21. Calculation parameters for children: bone mineral density (BMD), Z value, age ratio, BMI index, physiological age of bones, and height prediction.