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What is Radiotherapy

Examining the Causal Relationship Between Genes, Epigenetics, and Human Health
A treatment used to cure or relieve the symptoms of cancer by using high-energy rays to destroy cancer cells.
Published in Chapter:
DOI: 10.4018/978-1-5225-8066-9.ch014
With more than half of all cancer cases occurring in less developed nations of the world, cancer is a source of significant and growing mortality worldwide, with an increase to 19.3 million new cancer cases per year projected for 2025. Standard current treatments for cancer include surgery, radiotherapy, and a host of other systemic treatments comprising cytotoxic chemotherapy, hormonal therapy, immunotherapy, and targeted therapies. Referred to as the “guardian of the genome,” the alteration or inactivation of p53 tumour-suppressor gene by mutation or by its interactions with oncogene products or DNA tumour viruses can lead to cancer. The p53 is mutated in about half of almost all types of cancer arising from a wide spectrum of tissues. This chapter focuses on several types of cancer including breast and ovarian, colorectal, small cell lung carcinoma, malignant melanoma, pancreatic, prostate, neurofibromatosis, multiple endocrine neoplasia, and retinoblastoma.
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Emerging Technologies in Radiotherapy: Advances in Health Literacy and Healthcare Practice
A treatment method using high-energy rays or radioactive substances to damage cancer cells and impede their growth and division.
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Reflections of Challenges and Resolutions in Fieldwork Research on Quality of Life of Cancer Patients: Counseling and Psychology
Radiation therapy uses high doses of radiation to kill cancer cells and shrink tumors. It might cause side-effects such as, skin pigmentation, destruction of salivary glands, severe problems related to eating, swallowing and speech, causing xerostomia, oral infections, dental caries, pain, and discomfort.
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Isocenter Verification in Radiotherapy Clinical Practice Using Virtual Simulation: An Image Registration Approach
The use of ionizing radiation in order to remove of cancerous tumor or to prevent tumor recurrence after surgery.
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