Halima  Mahjoubi,Romaissa  Tamali,Taher Slimi,
Optimization of Mammary Tissue Displacement in Ultrasound Elastography
Radiology and Medical Diagnostic Imaging
2019
2613-7836
http://dx.doi.org/10.31487/j.RDI.2019.03.07
https://www.sciencerepository.org/optimization-of-mammary-tissue-displacement-in-ultrasound-elastography_RDI-2019-3-107 
Abstract: The displacement of mammary tissues in static ultrasound elastography is often contaminated by the speckle
noise deteriorating its quality. Several techniques have been developed in this context, in order to treat the
noise present in images of breast tissue displacement, the progress of research work in noise processing is
always questioned, especially that must be taken into account the trade-off between noise reduction and
preservation of breast tissue texture. In this paper, a new strategy has been proposed to reduce speckle noise.
The proposed method not only filters the image against noise, but also preserves the details and contours of
the tissue texture. The approach developed is based on the coupling between the image reconstructions by
filtered back projection (RPF) with an adaptive filter. The proposed model proposed has been validated on
an in-vivo database comprising 20 images of the breast tissues displacement. Qualitative and quantitative
improvements were noted. By comparing the proposed method with the wavelet technique, we show that it
is more efficient in terms of calculating the standard deviation between the pixels (SD), it is better in terms
of calculation of the Contrast / Noise ratio (CNR). And is much faster than the wavelet technique. The
results of the proposed model are encouraging, and the chosen method is ready to be used in the
improvement of images of mammary tissue displacements in ultrasound elastography.
Keywords: Noise of the speckle, analytical reconstruction, ultrasound elastography