Medical Definition of Single photon emission computed tomography

1. Tomographic imaging of metabolic and physiological functions in tissues, the image being formed by computer synthesis of photons of a single energy emitted by radionuclides administered in suitable form to the patient. The method uses radionuclides which emit a single photon of a given energy. The camera is then rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer then reconstructs the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the target area scanned. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as the 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 available photons and hence degrades the image. Acronym: SPECT (20 Jun 2000)

Lexicographical Neighbors of Single Photon Emission Computed Tomography

single dwelling
single entendre
single entendres
single entry
single file
single gene disorder
single immunodiffusion
single lucent skull lesion
single malt
single malt whisky
single mother
single mothers
single out
single parent
single person
single photon emission computed tomography (current term)
single pneumonia
single point of failure
single prop
single quote
single responsibility principle
single room
single rooms
single scull
single shell
single star system
single star systems
single stitch
single stranded DNA
single stranded DNA dependent ATPase

Other Resources:

Search for Single photon emission computed tomography on!Search for Single photon emission computed tomography on!Search for Single photon emission computed tomography on Google!Search for Single photon emission computed tomography on Wikipedia!