phantom
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phantom
[fan´tom]1. an image or impression not evoked by actual stimuli.
2. a model of the body or of a specific part thereof.
3. a device for simulating the in vivo effect of radiation on tissues.
phan·tom
(fan'tŏm),2. A model, especially a transparent one, of the human body or any of its parts.
See also: manikin.
See also: manikin.
3. radiology a mechanical or computer-generated model for predicting irradiation dosage deep in the body.
[G. phantasma, an appearance]
phantom
(făn′təm)n.
Medicine A model of a human body or body part.
adj.
1. Believed to be real even though illusory: a phantom pregnancy.
2. Being a phantom limb: a phantom arm.
phantom
An object of specifically known dimensions and structural properties used to test or monitor an MRI system’s homogeneity, imaging performance and orientation.phantom
Radiology A mass or dummy that approximates tissues in its physical properties that may be used to calibrate or determine the dose of radiation applied to a tissue. Cf Ballistic jelly.phan·tom
(fan'tŏm)1. Synonym(s): phantasm.
2. A model, especially a transparent one, of the human body or any of its parts.
3. radiology A mechanical or computer-originated model for predicting irradiation dosage deep in the body.
[G. phantasma, an appearance]
phan·tom
(fan'tŏm)1. A model, especially a transparent one, of the human body or its parts.
2. radiology mechanical or computer-generated model for predicting irradiation dosage deep in the body.
[G. phantasma, an appearance]