There are several imaging technologies. In alphabetical order, firstly, the Magnetic Resonance Imaging (MRI) uses nuclear magnetic resonance. F. Bloch (1905–1983) and E. Purcell (1912–) noted that atomic nuclei processing in the radiofrequency range could emit a radiofrequency signal that could be detected. In 1977, Damian and coworkers applied this physical principle to receive radiofrequency signals from different tissues of the human body. Secondly, there is the Myelography technology, which is used for indirect imaging of the spinal cord and nerve roots by filling the fluid spaces of the spinal canal with a contrast agent. Thirdly, the Positron Emission Tomography (PET) is a highly specialized imaging technique that uses radioactive markers injected into the blood to produce 3D images of those markers functioning within the body. PET enables the location of metabolic activity to be visualized. It has high spatial resolution, in the order of centimeters, but low temporal resolution...
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Kummer von, R., Zani, A., D’Hooge, R., Balschun, D., Gross, J. (2013). Neuroimaging Technologies. In: Runehov, A.L.C., Oviedo, L. (eds) Encyclopedia of Sciences and Religions. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8265-8_201334
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