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Simulation experiment of breast cancer detection has been performed using an ultrashort-pulse radar (USPR) system. Breast models for the experiment are made by cooking-oil. We measure reflection data to reconstruct images of the breast models with dielectrics alien objects and discuss the image reconstruction in different frequency bands.
The key to surgical planning for breast conservation is tumor localization. An accurate localization of the breast tumor is essential to guide the surgeon to the lesion, and ensure its correct and adequate removal with satisfactory excision margins. Current breast tumor localization techniques are invasive and often result in a cosmetic disfigurement. In this paper, we use the ultrawide band radar-based...
This paper details progress towards a real time palpation simulator. We explore the potential of employing a mass spring system coupled with a haptic interface to realise this. Our motivation lies with enhancing the skills required to detect breast cancer as early as possible. However there are issues in emulating the behaviour of soft tissues using this approach, particularly if the composition of...
Strong evidence shows that characteristic patterns of breast tissues as seen on mammography, referred to as mammographic parenchymal patterns, provide crucial information about breast cancer risk. Quantitative evaluation of the characteristic mixture of breast tissues can be used as for mammographic risk assessment as well as for quantification of change of the relative proportion of different breast...
Breast Thermography is one of the scanning techniques used for breast cancer detection. Looking at breast thermal image it is difficult to interpret parameters of tumor such as depth, size and location which are useful for diagnosis and treatment of breast cancer. In our previous work (ITBIC) we proposed a framework for estimation of tumor size using clever algorithms and the radiative heat transfer...
Based on the geometrical characteristics of the female breast tissue, a bioheat transfer model is setup to study the surface temperature expression of the breast with a malignant tumor. Resort to the finite element analysis, effects of geometrical parameters of the tumor (the location and the size) and thermal diagnosis conditions (the environmental temperature and the convective heat transfer coefficient)...
We have implemented a new algorithm for the electromagnetic inverse scattering problem in inhomogeneous media using a MATLAB-based finite difference frequency domain (FDFD) forward model. This algorithm, referred to as FDFD-based inverse method, constructs a near-linear expression for inversion from the matrix form of the forward model and uses a vector-based Born approximation without employing an...
The realistic modeling of soft tissue will not only improve current medical simulation systems; it will considerably enlarge the set of applications and the credibility of medical simulations. In order to achieve realistic breast tissue deformation modeling, considering the nonlinear stress-strain relationship or in a more precise statement the strain-hardening characteristic of different breast tissue...
Breast cancer is one of the biggest killers in the western world, and early diagnosis is essential for improved prognosis. The shape of the breast varies hugely between the scenarios of magnetic resonance (MR) imaging (patient lies prone, breast hanging down under gravity), X-ray mammography (breast strongly compressed) and ultrasound or biopsy/surgery (patient lies supine), rendering image fusion...
A typical breast cancer examination involves the comparison of image patterns in mammograms of craniocaudal (CC) and mediolateral oblique (MLO) views. Obtaining these mammograms requires the compression of the breast in two different directions. During compression, breast tissues undergo large deformations and hence the CC and MLO views do not show exactly the same region of the breast. Nonrigid body...
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