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| Title |
| Radiation Biology, Part 5: Somatic Effects of Radiation (1 credit hours) |
| Abstract |
| Welcome to Mosby's Radiography Online. Somatic Effects is the fifth of eight in the Radiobiology and Radiation Protection course. In Module 3 we explored the early somatic effects of whole body radiation exposure, and Module 4 covered genetic effects that may be passed on to future generations. This module introduces the late somatic effects of ionizing radiation. Radiation-induced carcinogenesis is of particular concern to those studying the effects of ionizing radiation on the human body. The principles involved in carcinogenesis are similar to those discussed in these earlier modules. Carcinogenesis involves cell damage and genetic mutation. The difference is in how biologic damage is expressed and when it is expressed. In this module you will learn about the mechanics of carcinogenesis, the risk of radiation-induced malignancy, and how radiation may contribute to the incidence of specific cancers. Course Approval Expiration/End Date: September 1, 2009 Category A Credit. |
| Author |
Elsevier Inc.,
 This module is adapted from Mosby's Radiography Online: Radiologic Physics, copyright © 2002 - 2004 by Elsevier (USA) reproduced by permission of Elsevier Inc. and edited for use as CE content by Denise Moore, Professor of Radiology, Sinclair Community College.
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| Objectives |
Upon completion of this module, you should be able to:
- Define the important terms in the module.
- Identify the principles and mechanics of carcinogenesis.
- Describe how genetic mutations and chromosomal aberrations in somatic cells can cause late somatic effects.
- Compare and contrast early and late somatic effects.
- Describe the risks of radiation-induced malignancy.
- Describe the importance of personal protection procedures in radiography.
- Describe why the potential benefits of diagnostic radiographs in terms of essential medical information outweigh any possible risk of radiation-induced cancer.
- List the classifications of cancers.
- Describe how radiation contributes to the incidence of different types of cancers.
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| Resources |
For additional information about somatic effects, visit the following sites.
ACS: All About Breast Cancer.
Biomarkers: Medical and Workplace Applications
Cancer Risks at Low Doses of Ionising Radiation
Effects of Ionizing Radiation: Atomic Bomb Survivors and Their Children (1945-1995)
Exposure of the American People to Iodine-131 from Nevada Nuclear-Bomb Tests
Nuclear Facilities and Cancer Mortality Risk
Radiation Effect Research Foundation (RERF)
Risk Assessment of Radon in Drinking Water |
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