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An early detection of small breast lesions by mammography screening may facilitate the cancer treatment by minimally or noninvasive techniques. Recently, new therapies than traditional surgery have been explored to satisfy these demands. Additionally ablative treatments have started to become viable alternative methods to treat patients who cannot be treated by surgery. Microwave energy is promising...
A compact stair shaped DRA sensor is designed and fabricated for microwave breast cancer detection. A quarter wavelength choke was incorporated to minimize the finite ground plane. A 10 dB return loss of about 43% simulated bandwidth and 50% measured bandwidth are achieved with a 50 Ohms coaxial port. The design is performed numerically and confirmed experimentally. Simple model for the tissue is...
Thermal ablation has been investigated as a treatment for a variety of cancers. Heat treatments have not gained large-scale clinical acceptance due to inconsistencies in controlling heat deposition in vivo and the lack of precise temperature measurement. Interstitial ultrasound provide a good method of controlling the radial depth of a thermal lesion and the applicator designs evaluated in this study...
Magnetic resonance elastography (MRE) is a method that can visualize the propagating acoustic strain waves in elastic materials under mechanical excitation. The local quantitative values of shear modulus are derived from the acquired data. The MRE could improve early detection of pathology because it is known that malignant tumors tend to be much harder than normal tissues and most benign tumors....
Hepatic resection is the current standard treatment for hepatic malignancies. During hepatic resection part of the liver containing the tumor is surgically removed. This type of surgery is associated with high blood loss of /spl sim/1 L. Blood loss is associated with increased complication rates, prolonged hospital stay and reduced patient survival, especially when transfusion is required. We present...
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