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Imaging Terminology Test

Enter the letter for the matching Definition
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1.
Hyperechoic
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2.
Image Intensifier
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3.
Tesla
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4.
MRI Unsafe
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5.
Transducer
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6.
Echogenicity
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7.
Anechoic
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8.
Artifacts
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9.
MRI
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10.
SAR (Specific Absorption Rate)
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11.
Isoechoic
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12.
Attenuation
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13.
Echoic
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14.
CT Scan
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15.
Contrast Medium
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16.
Time Gain Compensation (TGC)
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17.
MRI Conditional
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18.
Scan Time (SCT)
A.
The total scan time is the time required to collect all data needed to generate the desired images.
B.
False features in the image produced by the imaging process.
C.
Advanced X-ray technology that produces a sequence of detailed cross-sectional 3-D images of the body.
D.
Amount of RF energy absorbed by the body during an MRI scan measured in Watts per kilogram or W/Kg.
E.
The capacity of a structure in the path of an ultrasound beam to reflect back soundwaves. The specific terminology is used to describe the characteristics of images in ultrasound.
F.
Under specific conditions of use, safe in the MR environment.
G.
Region in an ultrasound image in which the echoes are stronger (whiter) than normal or than surrounding structures.
H.
Ability to compensate for the attenuation of the transmittal beam as the sound wave travels through tissue in the body.
I.
Unit of measurement (T) to determine the strength of a magnet.
J.
An electronic device used to produce a fluoroscopic image with a low-radiation exposure. A beam of X-Rays passing through the patient is converted into a pattern of electrons in a vacuum tube.
K.
Presents unacceptable risks in the MR environment.
L.
Producing ultrasound echoes equal to those of neighboring or of normal tissues.
M.
The change in a beam of radiation or sound wave as it passes through matter. The intensity of the beam or sound wave decreases as its depth of penetration increases.
N.
Region which is free from echoes (black).
O.
Refers to echo.
P.
Advanced diagnostic imaging technique that produces detailed pictures of the tissues of the human body using a magnet and RF energy (radio waves) to see inside the body
Q.
Sends high frequency sound waves into the body, then receives the sound waves back.
R.
Agent that enhances differences between anatomic structures.
Type the Term that corresponds to the displayed Definition.
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19.
An interventional diagnostic test used to help identify the source of back pain and to guide the treatment of abnormal discs.
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20.
Degree of difference between the light and dark areas.
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21.
Variation of the strength of the magnetic field over a specific period of time measured in Tesla per second or T/sec.
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22.
An ultrasound artifact, notably in muscles and tendons, which causes the echogenicity of a structure changes when the transducer is angled obliquely.
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23.
Presents no known hazards resulting from exposure to any MRI environment.
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24.
Ability to distinguish two close objects as separate. In simple terms, it provides clarity to the ultrasound image.
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25.
An X-ray of the spinal cord after injection air or a radiopaque substance into the subarachnoid space.
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26.
Measure of the strength of the ultrasound signal; overall gain amplifies all signals by a constant factor regardless of the depth.
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27.
Region in an ultrasound image in which the echoes are weaker (darker) than normal or in the surrounding regions.
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28.
Instrument that detects and measures exposure to ionizing radiation.

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