Current density imaging
Current Density Imaging
Current Density Imaging (CDI) (pronounced: /ˈkʌrənt/ /ˈdɛnsɪti/ /ˈɪmɪdʒɪŋ/) is a medical imaging technique that measures the electric current density in the human body. The technique is primarily used in neuroimaging and cardiac imaging to visualize the electrical activity in the brain and heart, respectively.
Etymology
The term "Current Density Imaging" is derived from the words "current", referring to the flow of electricity, "density", referring to the amount of current in a specific area, and "imaging", referring to the process of creating visual representations of the interior of a body.
Technique
Current Density Imaging involves the use of magnetic resonance imaging (MRI) technology. The MRI scanner generates a magnetic field, which induces an electric current in the body. The current density is then measured using a technique called magnetic field gradient imaging. The resulting images provide a detailed map of the electrical activity in the body.
Related Terms
- Electric Current: The flow of electric charge in a medium.
- Magnetic Resonance Imaging: A medical imaging technique used in radiology to visualize internal structures of the body.
- Magnetic Field Gradient: A difference in the magnetic field in different parts of a medium.
- Neuroimaging: The use of various techniques to directly or indirectly image the structure or function of the brain.
- Cardiac Imaging: A subset of medical imaging that focuses on the heart.
See Also
External links
- Medical encyclopedia article on Current density imaging
- Wikipedia's article - Current density imaging
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