Medical imaging continuous development have made it possible to get accurate information about your condition quickly and easily. Your examination may include traditional fluoroscopy, computed tomography (CT), medical ultrasound scanner, nuclear medicine, or magnetic resonance imaging (MRI). In addition to the Technologist who administers your examination and the Physician who interprets your images, your caregivers include the Medical Physicist. The Medical Physicist is part of the medical imaging team, ensuring patient images are of the highest quality. The Medical Physicist is also a resource for the Physician and Technologist, helping them better understand the technical aspects of the imaging methods so they can use them most effectively.
X-ray Images
To produce quality x-ray images of all parts of your body safely, the medical x-ray equipment must be well maintained and operated properly. The Medical Physicist uses sophisticated detection equipment to test and measure the radiation produced by medical x-ray machines. To minimize radiation risk, the Medical Physicist makes sure that the radiation-producing equipment is operating within safe limits defined by regulatory agencies and that the amount of radiation patients are exposed to is within an accepted range. X-ray images can be viewed on film or on television monitors. Your Physician uses the information on the images to reach a diagnosis. To help your Physician make the right diagnosis, the Medical Physicist performs tests to ensure that all images are of the highest quality.
 CT, Ultrasound, Nuclear Medicine, and MRI
The Medical Physicist is also involved with other imaging procedures that may be used to establish your diagnosis. CT uses both x-rays and a computer to produce diagnostic images of your body. Ultrasound uses reflected sound waves; nuclear medicine imaging, including positron emission tomography (PET), uses small amounts of radioactive materials; and MRI uses strong magnetic fields and radio waves to create images of the body’s tissues and their function. The equipments used to perform these diagnostic studies is very complex and must function properly to get high-quality images. The Medical Physicist evaluates the equipment’s operation and image quality and oversees the routine quality control testing of these imaging systems to ensure the images meet widely accepted standards.
If You Are Pregnant
If your Physician decides that an x-ray or nuclear medicine examination is needed during your pregnancy, a Medical Physicist may be asked to calculate the radiation dose that your unborn child will receive during the imaging procedure. This information will help your Physician explain the risks of the procedure to you and make any necessary recommendations. Please note that radiation risks are small for most diagnostic procedures, and there are no known risks associated with ultrasound or MRI examinations.

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