About The Medical Condition Tomography, Emission-Computed, Single-Photon

Find the definition of the medical term Tomography, Emission-Computed, Single-Photon. Tomography, Emission-Computed, Single-Photon defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Tomography, Emission-Computed, Single-Photon

Tomography, Emission-Computed, Single-Photon Medical Condition |
---|
What's The Definition Of The Medical Condition Tomography, Emission-Computed, Single-Photon?
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.
|
More Medical Conditions
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Medical Conditions Definitions Of The Day
- IL18 ‐ Cytokine which resembles IL-1 structurally and IL-12 functionally.…
- Cephalgias ‐ Pain in the cranial region that may occur as an isolated and…
- GABA Receptor ‐ Cell-surface proteins that bind GAMMA-AMINOBUTYRIC ACID with…
- Acid, Periodic ‐ A strong…
- Neoplasms, Hematopoietic ‐ Neoplasms located in the blood and blood-forming tissue (the…
- Filgrastim ‐ A hematopoietic growth factor which promotes proliferation and…
- Wurster Reagent ‐ Used in the form of the hydrochloride as a reagent in analytical…
- Cortisone ‐ A naturally occurring glucocorticoid. It has been used in replacement…
- Lung, Hyperlucent ‐ Hyperlucency of one lung with decreased size and vascularity…
- Multivariate Analysis ‐ A set of techniques used when variation in several variables…