SPECT scan of an Alzheimer's patient
The brain of an elderly patient suffering from Alzheimer's Disease viewed as an axial SPECT (Single Photon Emission Computed Tomography) scan, which shows brain activity as indicated by blood flow. The front of the brain is seen at the top with coloured areas indicating different rates of blood flow with a large central area showing low or zero activity. The SPECT scan uses a metastable radioactive isotope of technetium injected into the blood which is detected and computed by a gamma camera which translates it into an image.
Photo ID: SPECT-scan-Alzheimer_s
Copyright © James King-Holmes 2014.Copyright © James King-Holmes |PLUS|01-AA-662| 2014
Photo size: 17.8 Mpixels (50.9 MB uncompressed) - 3787x4700 pixels (12.6x15.6 in / 32.1x39.8 cm at 300 ppi)