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Improving detection of Breast Cancer with compression at optimal pressure
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Personalized breast compression without unnecessary discomfort.
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Reproducible mammogram while avoiding
extreme pressures.
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Clear visual guideline for
every breast compression.
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Highly reproducible breast compression, year after year.
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Patented technology that optimizes breast compression
to what is strictly necessary.

We are inspired to improve mammography


Worldwide, circa 150 million mammographic examinations are performed every year. To get the best image quality with the least amount of radiation, the breast needs to be compressed.

We developed a patented technology for a highly reproducible procedure without unnecessary discomfort. An optimized breast examination contributes to the early detection of cancer which ultimately can saves lives.

Latest news, publications and more related articles


2018-03-02 - Diagnostic Imaging Europe
This article reviews the mechanical properties of the breast in compression. The optimal mean pressure value of 10 kPa is determined and related to research on physiologic pressure effects. Stiffening of the breast tissue correlates with...
The patient becomes central to the quality of her own mammogram
It was at the Institut Curie in 2017 that the Sensitive Sigma™ compression paddle was installed and used for the 1st time in France. This technological innovation, developed by the company Sigmascreening, optimizes breast compression during...

Publications in peer-reviewed journals

2018 - Clinical validation of a pressure-standardized compression mammography system
In a retrospective study, mammograms acquired using a pressure-standardized compression protocol were intra-individually compared with the prior mammograms using a force-standardized compression. Pressure-standardized compression provided a mean breast pressure that was almost independent on breast size. Additionally, the mean pressure was significantly lower and the number of over-compressions (>20 kPa) reduced significantly for the pressure-standardized compared to the force-standardized protocol, suggesting a reduction of patient discomfort and pain. 
2017 - Influence of breast compression pressure on the performance of population-based mammography screening
In a retrospective study of 57,179 women participating in the Dutch population based screening program with a total of 132,776 digital mammographic examinations, digital image analysis was used to determine the pressure exercised during image acquisition. Volpara software was used for the analysis. The data were subdivided into quintiles of pressure and the number of screen-detected cancers, interval cancers, false positives, and true negatives were determined for each of the 5 groups. Generalized estimating equations (GEE) were used to account for confounders; pair-wise testing for significant differences was performed. In conclusion; results suggest that if too much pressure is applied during mammography this may reduce sensitivity. In contrast, if pressure is low this may decrease specificity.  A similar study on data of the Norwegian population based screening was recently published by N. Moshina et al in Breast Cancer Res Tr  (2017 Jun;163(3):605-613),  with comparable results.