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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...
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...
Microwave heating system for hyperthermia by using four flat LHM lenses orthogonally-deployed around the heating region is proposed and simulated. For the process of heating a 6 mm-diameter tumor in homogeneous lossy dielectric medium, our 2-D FDTD simulations indicate that microwave energy can be concentrated tightly inside the tumor. Also the temperature distribution is derived through bio-heat...
Radiofrequency (RF) ablation is receiving increasing attention as treatment for primary and metastatic liver cancer. RF ablation can be performed during open surgery, or minimally invasive through a small incision. An electrode is introduced into the liver tumor, and RF energy is applied. Tissue surrounding the electrode heats up, and is killed above approximately 50 /spl deg/C, where tissue coagulation...
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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