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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


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...
Approval for Sensitive Sigma Paddle use in Belgian screening
The Agency for Heathcare ("Agentschap Zorg en Gezondheid") has released the Sensitive Sigma Paddle for use in the Belgian breast cancer screening program.

Publications in peer-reviewed journals

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. 
2017 - Mammographic compression at Asian women
This study showed that a force-standardized mammographic compression practice led to widely variable compression parameters in Asian women. Asian women, who generally have smaller breasts, are subject to force standardized protocols. These protocols have largely been optimized for Caucasian women and might not be suitable for them. The mean ± standard deviation compression pressure for all mammograms (n = 15818) was 17.77±10.51 kPa. A phantom study showed that reducing compression force in Asian women has a limited impact on image quality and mean glandular dose.