The field of radiology was originally oriented on using X-ray radiation for imaging of the body. Current radiology is not limited to X-rays; it also uses magnetic fields, radiation and sound waves. Radiology can be used both for diagnostic purposes, as well as a form of treatment for some diseases.
Identification
Radiology is a medical specialty that uses imaging equipment to examine the human body for the purposes of diagnostics and to treat certain diseases. Radiology deals with such techniques as magnetic resonance imaging, computed tomography and ultrasound. Although historically limited to using X-rays for diagnostic purposes, radiology has expanded to using a variety technologies for diagnosis, treatment and guidance of other medical techniques.
History
The field of radiology began with the discovery of X-radiation by Wilhelm Roentgen in 1895. As a result, the field of X-ray imaging is known as roentgenology. For 50 years X-ray imaging was the only form of radiology available, and it is still commonly used for examination of bones, the heart and lungs because it is relatively inexpensive and fast.
Types
The use of radiology for diagnosis is still very common, though the tools involved have changed. Magnetic resonance imaging (MRI), ultrasound and radiological dyes are all used. Diagnostic radiology can be used to look for broken bones, detect growths and unusual tissue and to monitor the effects of treatment.
Considerations
Radiology can also be used to guide other, more invasive medical techniques. Many procedures, especially those that are classified as "minimally invasive," involve careful guidance of instruments through areas of the body that are not visible. Interventional radiology involves helping guide these techniques. Special fluorescent markers, ultrasound and MRI can be used to assist in such procedures as angiograms and angioplasty.
Expert Insight
Some aspects of radiology can even be used as a form of treatment. Ultrasound uses high frequency sound waves, which can in turn be used to break up and disrupt blockages, such as kidney stones. Additionally, radiation therapy is a commonly used to treat cancer and is done under the supervision of an oncology radiologist.
Tags: commonly used, diagnostic purposes, field radiology, form treatment, medical techniques, resonance imaging, sound waves
