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Mammography compression force in New Zealand
1National Radiation Laboratory, Christchurch, New Zealand.
Summary
Mammography compression forces were measured, revealing a median of 145 N. Service personnel must improve compression device settings and quality assurance for accurate mammography.
Area of Science:
- Medical Imaging
- Biomedical Engineering
- Radiology
Background:
- Mammography is a crucial screening tool for breast cancer detection.
- Adequate breast compression is essential for image quality and radiation dose optimization.
- Variability in compression force can impact diagnostic accuracy and patient comfort.
Purpose of the Study:
- To measure the maximum compression forces applied by mammography machines in New Zealand.
- To assess the accuracy of indicated forces on these devices.
- To highlight the importance of quality assurance for mammography compression devices.
Main Methods:
- A survey of 37 mammography machines in New Zealand was conducted.
- A simple hydraulic device was used to measure maximum compression forces.
- Data on indicated force accuracy were collected where available.
Main Results:
- The median measured maximum compression force was 145 N (range: 58–230 N).
- Some machines exhibited poor accuracy in indicating the applied compression force.
- Significant attention is required for setting and monitoring compression forces.
Conclusions:
- Service personnel need enhanced training on setting and calibrating mammography compression devices.
- Compression devices must be integrated into routine quality assurance programs.
- Improving the accuracy and consistency of compression forces is vital for mammography effectiveness.