Scan
Scan
Scan (pronounced: /skæn/) is a term used in the medical field to refer to the process of capturing images of the body's internal structures using various imaging technologies.
Etymology
The term "scan" originates from the Middle English word "scannen", which means to examine closely. It was first used in the medical context in the 1940s with the development of imaging technologies.
Types of Scans
There are several types of scans used in medicine, including:
- Computed Tomography (CT) Scan: This type of scan uses X-rays to create detailed images of the body's internal structures.
- Magnetic Resonance Imaging (MRI) Scan: An MRI scan uses magnetic fields and radio waves to create detailed images of the body's internal structures.
- Positron Emission Tomography (PET) Scan: A PET scan uses a small amount of radioactive material to help visualize the body's internal structures and functions.
- Ultrasound Scan: An ultrasound scan uses high-frequency sound waves to create images of the body's internal structures.
Related Terms
- Radiology: The branch of medicine that deals with the use of radiation for diagnosing and treating diseases.
- Radiologist: A medical professional who specializes in interpreting medical images.
- Imaging: The process of creating visual representations of the body's internal structures for medical purposes.
- Diagnostic Imaging: The use of imaging technologies to diagnose diseases and conditions.
External links
- Medical encyclopedia article on Scan
- Wikipedia's article - Scan
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