Year: 2024
Type: article
Abstract: the greatest component of man-made radiation exposure to humans and includes various diagnostic and therapeutic modalities [2].In an occupational setting, exposure to ionizing radiation should be limited to the greatest extent possible to limit the potential health impacts of radiation exposure.Unfortunately, there is no threshold effect for ionizing radiation exposure, meaning that there is no exposure level, below which, there is zero health risk.The sievert (Sv) is the primary unit utilized to discuss the effects of medical radiation exposure and is de ined as 1 joule of energy per kilogram of body tissue, averaged over the whole body.In occupational settings, radiation is generally measured in millisieverts (mSv), or 1/1000 Sv.The effects of ionizing radiation are reduced by the distance from the source according to the inverse square law: intensity = 1/distance [1].Ionizing radiation has become an indispensable tool in modern medicine.Radiation is used in medicine in two primary ways: to diagnose disease or injury and to kill unwanted (generally cancerous) cells.The oldest and still most commonly used radiation modality is the plain radiograph.In this study, x-rays are passed through body tissues and collected on a photosensitive detector ( ilm), producing an image of the tissues traversed by the x-ray beam.Less commonly performed diagnostic studies, in the ield of nuclear medicine, involve the injection, swallowing or inhalation of a radioisotope which emits particles which can be detected (by a gamma camera) for diagnostic purposes [2].In general, the radioisotope chosen preferentially localizes to the speci ic tissues or organ where diagnostic information is required.
Authors: Bradley Anderson, Greg Anderson
Institution: Thomas Jefferson University
Language: English
Topic: Radiation Dose and Imaging
Subfield: Radiology, Nuclear Medicine and Imaging
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4406069153