Body Contouring or Elliptical Orbits in SPECT Imaging Have an Advantage

question 24

Multiple Choice

Body contouring or elliptical orbits in SPECT imaging have an advantage over circular orbits because they

• A)improve the accuracy of gantry location.
• B)reduce the camera-to-patient distance.
• C)maximize resolution.
• D)minimize noise.

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Definitions:

Retina

The light-sensitive layer of tissue at the back of the inner eye, which converts light images into electrical signals sent to the brain.

Lens

An optical device capable of converging or diverging light, or a transparent structure in the eye which focuses light onto the retina to facilitate vision.

Chemoreceptor

Sensory receptor that is sensitive to chemical stimulation—for example, receptors for taste and smell.

Thermoreceptor

Sensory receptor that detects heat.