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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:24 |
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Conference: Bucharest University Faculty of Physics 2010 Meeting
Section: Educational Physics
Title:
Study on the possibilities offered by the clinic dosimetry to minimize side effects on healthy cells and tissues
Authors:
Ramona Focea (1,2), Dorina E. Creanga (1)
Affiliation:
(1) "Al. Ioan Cuza" University of Iasi, Faculty of Physics, 700506 Iasi, Romania
(2) "Sf.Spiridon" Emergency County Hospital, Radiation Therapy Department, Iasi, Romania
E-mail
ramona_focea@yahoo.com
Keywords:
radiation therapy, delivery techniques, treatment plans optimization
Abstract:
In the field of radiation therapy, much of the research is aimed at developing new and innovative techniques for treating cancer patients with radiation. In recent years, advances in radiation therapy have led to the development of delivery techniques with a high degree of computer control. Due to the complexity of the treatments, however, an optimization approach is needed in order to develop the best plan for treating each patient. Radiotherapy refers to the use of radiation as a means for treating disease. A beam of radiation is attenuated as it passes through a patient, and energy is deposited at each location along the path of the beam. High doses of radiation can kill cells or prevent them from growing and dividing. This is true of both cancer cells and normal cells, but it is useful because the repair mechanism of cancer cells is less efficient than that of normal cells. Thus, normal cells are more likely to fully recover from the effects of radiation. The treatments are carefully planned so that the radiation damage is concentrated within the cancerous region. If all of the tumor cells are killed, the patient is cured. This paper provides an overview of radiation therapy and conventional delivery techniques and outlines the advantages, the disadvantages, and the quality of the solutions that are produced using each of these techniques. It also presents the results of several approaches to optimizing treatment plans in radiation therapy for a number of pacients with diferent tumor location. This theme is presented as a laboratory practice lesson in a radiation therapy department through which medical physics students can learn more information about existing radiotherapy techniques and participate in the actual realization and optimization of treatment plans for different localization of tumor tissues.
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