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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...
This paper reports a novel three-dimensional finite element analysis of coaxial antenna for hepatic microwave ablation. We analyses the temperature distribution pattern and lesion size on hepatic cancer of cap-choke antenna at frequency of 2.45GHz. We set duration time for microwave ablation in the range 60s, 100s, 200s and 300s. We set the potential difference between the inner and an outer conductor...
Microwave hyperthermia treatment has been widely used in medical cancer therapy. However, in most situations, because of uncertain effect prediction, the operations by doctors usually depend on their experiences, which would cause unnecessary damages to normal tissues or incomplete cancer necrosis. In this work, an approach of combining electromagnetic fields and thermal distribution computation with...
Microwave ablation (MA) is popular as a minimally invasive, painless and effective oncological treatment. The paper presents an approach of characterizing the thermal coagulation during microwave ablation using B-mode ultrasound image textures and pattern recognition technique. During the MA treatment, the series of B-mode ultrasound images were obtained. Textures of different ROIs such as gray level...
Currently, physicians test minimally invasive ablation techniques to determine if they will be acceptable substitutes for surgical removal of primary breast tumors. A study of different electromagnetic hyperthermia ablative therapies, including microwave ablation and radiofrequency ablation, are summarized in this paper. We concluded that further studies are necessary to evaluate its future role as...
A needle-holding robot for microwave ablation therapy is developed to free two hands of the surgeon, so that more effort can be concentrated on monitoring the ablation procedure, which in turn guarantees good tumor ablation effect. The overall architecture of the robot is introduced first with the explanation of the mechanism of 3D motion tracking and how to minimize damping force for the robotic...
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