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),
1.
See also: manikin. Synonym(s): phantasm
2. A model, especially a transparent one, of the human body or any of its parts.
See also: manikin.
3. radiology a mechanical or computer-generated model for predicting irradiation dosage deep in the body.
[G. phantasma, an appearance]

phantom

/phan·tom/ (fant´um)
2. a model of the body or of a part thereof.
3. a device for simulating the in vivo effect of radiation on tissues.

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

[fan′təm]
Etymology: Gk, phantasma, vision
a mass of material similar to human tissue used to investigate the effect of radiation beams on human beings. Phantom materials can range from water to complex chemical mixtures that faithfully mimic the human body as it would interact with radiation.

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]

phantom (fan´tum),

n a device that absorbs and scatters x-radiation in approximately the same way as the tissues of the body.

phantom

1. a model of the body or of a specific part thereof.
2. a device for simulating the in vivo effect of radiation on tissues.

phantom mare
a dummy of a mare used to collect semen for artificial insemination. A padded, hollow device about the height and width that would suit the stallion to be used. Excellent for collecting from an insecure or lame stallion.
phantom parturition
see false pregnancy.
phantom pregnancy
see false pregnancy.