3-D BREAST CANCER DETECTION USING SUPPORT VECTOR MACHINES AND FINITE ELEMENT METHODS

Breast cancer is one of the most prevalent non-skin-related malignancies among
women in the world. Thus, many countries have commenced screening test in early stages in order to
diagnose breast cancer. Buried object detection is performed in the present work to detect 3-D breast
cancer applying SVM classifier. Some transmitters and receivers are located above the breast. Each
transmitter radiates monochromatic electromagnetic wave.
Materials & Methods: When a patient is positioned in a supine position, the breast is naturally
flattened. The breast tissue is considered as 3-D lattice of classification cells. Since breast tissue can be
considered with high order of accuracy as a linear medium, the received signals are monochromatic.
Results: Some particular ranges of parameters have been covered during model selection. Almost all
samples in the training set were converted to support vectors. It is worthy to remind that single
radiation source (dipole) has been used for the present work.
Conclusion: The simulation has been carried out on synthetic electromagnetic data obtained by means
of Finite Element Method and Perfectly Matched Layers techniques. Noisy environments have been
considered as well in order to simulate realistic conditions of signal measurement. The real positions
of the tumor are marked by white contour squares. The dependence of the prediction quality on the
depth of the tumor location is not observable unless the tumor is directly under the skin layer.
Probability maps obtained demonstrate that the region around the tumor location usually clearly stands
out against the background of overall probability values