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Radiology is the branch or speciality of medicine that deals with the study and application of imaging technology like x-ray and radiation to diagnosing and treating disease.
Originally it was the aspect of medical science dealing with the use of electromagnetic energy emitted by X-ray machines or other such radiation devices for the purpose of obtaining visual information as part of medical imaging. Radiology that involves use of x-ray is called roentgenology. The modern day radiological imaging is no longer limited to the use of x-rays, and now includes technology-intensive imaging with high frequency sound waves, magnetic fields, and radioactivity.
Wilhelm Conrad Röntgen (English spelling Roentgen) first discovered x-radiation on 8 November 1895 at the Physical Institute of Würzburg University.[1] He named the radiation he had discovered "X-radiation". This term is still in use today in the Anglo-American region. His work was first published in a meeting protocol of the Würzburg Physical-Medical Society in the 1895 volume; the article was submitted by W.C. Röntgen on 28 December 1895. Roentgen received the first Nobel Prize for Physics for the discovery of X-rays in 1901.
Today, following extensive training, radiologists direct an array of imaging technologies (such as ultrasound, computed tomography (CT) Computer Assisted Tomography, nuclear medicine, Positron Emission Tomography (PET) and magnetic resonance imaging (MRI)) to diagnose or treat disease. Interventional radiology is the performance of (usually minimally invasive) medical procedures with the guidance of imaging technologies. The acquisition of medical imaging is usually carried out by the radiographer or radiologic technologist. Outside of the medical field, radiology also encompasses the examination of the inner structure of objects using X-rays or other penetrating radiation.
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