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Clinical validation of a pressure-standardized compression mammography system
D den Boer1, L A J Dam-Vervloet1, M F Boomsma2
1Department of Medical Physics, Isala Hospital Zwolle, The Netherlands.
European Journal of Radiology
|July 19, 2018
Summary
A new pressure-standardized compression mammography (PSCM) system significantly reduces breast compression pain and over-compression, especially for smaller breasts, compared to conventional force-standardized methods.
Area of Science:
- Radiology
- Medical Imaging
- Biomedical Engineering
Background:
- Mammography is crucial for breast cancer screening.
- Patient discomfort during mammography is a significant issue, potentially affecting screening adherence.
- Conventional force-standardized compression mammography (FSCM) can lead to variable pressure due to differing breast sizes and contact areas.
Purpose of the Study:
- To validate a pressure-standardized compression mammography (PSCM) system.
- To assess if PSCM reduces discomfort and pain by standardizing applied pressure.
- To compare PSCM with conventional FSCM in terms of applied pressure and its dependency on breast characteristics.
Main Methods:
- Retrospective analysis of 300 mammograms (150 FSCM, 150 PSCM) from 39 patients.
- Intra-individual comparison of FSCM and PSCM techniques.
- Calculation of applied pressure by dividing compression force by the contact area between the breast and the compression paddle.
Main Results:
- Mean pressure significantly decreased from 17.1 to 12.8 kPa with PSCM (p < 0.001).
- PSCM showed minimal dependency of applied pressure on breast contact area, unlike FSCM.
- The rate of over-compressions reduced from 26% to 2% with PSCM, benefiting patients with smaller breasts.
Conclusions:
- PSCM reduces average breast compression pressure compared to FSCM.
- Standardized pressure with PSCM may decrease patient discomfort and pain.
- Consistent image quality from PSCM could potentially enhance diagnostic performance.
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