single-photon emission computed tomography

(SPECT) a type of tomography in which gamma photon–emitting radionuclides are administered to patients and then detected by one or more gamma cameras rotated around the patient. From the series of two-dimensional images produced, a three-dimensional image can be created by computer reconstruction. The technique improves resolution of, and decreases interference by, overlapping organs.

Medical dictionary. 2011.

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  • single photon emission computed tomography — n a medical imaging technique that is used esp. for mapping brain function and that is similar to positron emission tomography in using the photons emitted by the agency of a radioactive tracer to create an image but that differs in being able to …   Medical dictionary

  • Single photon emission computed tomography — (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information.… …   Wikipedia

  • single-photon emission computed tomography — vienfotonė emisinė kompiuterinė tomografija statusas T sritis Standartizacija ir metrologija apibrėžtis Tomografija, kai įvairiomis kryptimis registruojama radionuklidų sukelta gama spinduliuotė, kuri vizualizuojama kompiuterinės tomografijos… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Single Photon Emission Computed Tomography — Die Single Photon Emission Computed Tomography (SPECT) (dt. Einzelphotonen Emissions Tomografie[1][2]) ist ein diagnostisches Verfahren zur Herstellung von Schnittbildern lebender Organismen. SPECT Bilder zeigen die Verteilung eines… …   Deutsch Wikipedia

  • single photon emission computed tomography — noun : a medical imaging technique that is used especially for mapping brain function and that is similar to positron emission tomography in using the photons emitted by the agency of a radioactive tracer to create an image but that differs in… …   Useful english dictionary

  • single-photon emission computed tomography — SPECT. A special type of computed tomography (CT) scan in which a small amount of a radioactive drug is injected into a vein and a scanner is used to make detailed images of areas inside the body where the radioactive material is taken up by the… …   English dictionary of cancer terms

  • single photon emission computed tomography — ▪ imaging technique  imaging technique used in biomedical research and in diagnosis. SPECT is similar to positron emission tomography (PET), in which a compound labeled with a positron emitting radionuclide is injected into the body; however, its …   Universalium

  • single photon emission computed tomography — see SPECT scanning …   Medical dictionary

  • single photon emission computed tomography — see SPECT scanning …   The new mediacal dictionary

  • Томография Одиночных Фотонов Эмиссион Ная Компьютерная (Single Photon Emission Computed Tomography (Spect)) — рентгенологическое исследование, позволяющее на ранней стадии выявить имеющееся у человека поражение головного мозга. Поврежденные в результате нарушения кровоснабжения вследствие травмы или инсульта клетки головного мозга выделяют глютамат,… …   Медицинские термины

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