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Ablation therapy
Published in Riadh Habash, BioElectroMagnetics, 2020
With continuing technical advances in microwave medical technology, minimally invasive treatments have emerged to treat common medical conditions. One such advance is the transurethral microwave thermotherapy (TUMT) to treat BPH or the enlarged prostate. TUMT uses a catheter with microwave antenna built in just below the balloon. The balloon at the tip localizes the antenna at the correct position in the object area. Thermosensors on the catheter and in the surrounding area auto-regulate power output to optimally heat the object. Different types of microwave antennas are used for TUMT including helical, dipole, and whip designs [70].
Time reversal mirror for hyperthermia of multi-focal breast tumors using electromagnetic time reversal technique
Published in Electromagnetics, 2022
Baidenger Agyekum Twumasi, Jia-Lin Li, Ebenezer Tawiah Ashong, Christian Dzah, Dustin Pomary
Breast cancer is a disease affecting women of all ethnic groups in the world. This type of cancer is seen to be the most common cancer among women and the number one cause of cancer mortality and also the leading cause of morbidity for women all over the world. Breast cancer is highly curable when identified early and a mortal disease when detected too late (Yee 1966). This calls for techniques to discover it in its early development so that treatment can be commenced early to nib it in the bud. Microwave thermotherapy is known to destroy cancer cells. Raising the temperature of tumor cells culminates in cell membrane damage, which in turn results in the destruction of cancerous cells. To this end, a synergistic effect can be realized when used as an adjunct to other cancer treatment methods such as chemotherapy and radiotherapy (Becker 2015). Microwaves have evolved as a complimentary system for the imaging and hyperthermia of breast tumors due to the radiation risk associated with X-ray and the discomfort with the compression of breast.