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tomografia emisná počítačová jednofotónová
Record number d015899 Date 06.06.2025 Type M - MESH Topical term tomografia emisná počítačová jednofotónová Other term English (Pseudonym) CAT Scan, Single-Photon Emission
English (Pseudonym) CT Scan, Single-Photon Emission
English (Pseudonym) Radionuclide Tomography, Single-Photon Emission-Computed
English (Pseudonym) Single-Photon Emission-Computed Tomography
English (Pseudonym) SPECT
English (Pseudonym) Tomography, Single-Photon, Emission-Computed
Slovak (Pseudonym) CAT snímanie emisné jednofotónové
Slovak (Pseudonym) CT snímanie emisné jednofotónové
Slovak (Pseudonym) SPECT
Slovak (Pseudonym) tomografia rádioizotopová emisná počítačová jednofotónová
Slovak (Pseudonym) tomografia rádionuklidová emisná počítačová jednofotónová
UDC E01.370.350.350.800.800E01.370.350.600.350.800.800E01.370.350.710.800.800E01.370.350.825.800.800E01.370.384.730.800.800 Note A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image. 
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Number of the records: 1