Chapter 1/ First Class Flashcards

1
Q

Medical Sonography

A

> 20,000 Hz

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2
Q

Echogenic

A

Tissue capable of producing an ECHO (light area)

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3
Q

Anechoic

A

ECHO-Free area (Black area)

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4
Q

Hyperechoic

A

Brighter than surrounding tissue

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5
Q

Hypoechoic

A

Darker than surrounding tissue

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6
Q

Isoechoic

A

Structures that are equal echodensity

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7
Q

Homogenous

A

Smooth ECHO texture

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8
Q

Heterogenous

A

Complex ECHO texture (speckles)

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9
Q

Cystic

A

Anechoic center. Well defined liquid wall. Black

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10
Q

Complex

A

Both Anechoic and Echogenic areas (Not defined and black)

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11
Q

Artifact

A

Anything that shows and image that is not accurate.

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12
Q

Doppler Ultrasound

A

Used to evaluate blood flow

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13
Q

Color Doppler

A

Color Coded presentation of information on gray scale images

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14
Q

Spectral Doppler

A

Doppler information is applied to loud speakers to display quantitative analysis

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15
Q

Vascular Structures

A

Veins, Arteries

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16
Q

Fat

A

Hypoechoic with irregular hyperechoic lines

17
Q

Muscles

A

Heterogenous (mixture of hyperechoic lines and hypoechoic tissue)

18
Q

Tendons

A

Predominantly hyperechoic technical artifact (Hypoechoic

19
Q

Bone

A

Hyperechoic lines with hypoechoic shadows

20
Q

Nerves

A

Both hyper and hypoechoic technical artifact

21
Q

Parenchyma (Tissue)

A

Homogenoeous

22
Q

Gain

A

Brightness

23
Q

Depth

24
Q

Sagittal/Longitudinal

A

Long stance on transducer (indicator at patients head)

25
Transverse/Axial
Wide stance on transducer (indicator at patients right side)
26
Transducer/Probe
The device that sends out sound waves to create images of the body
27
ECHO
A ultrasound that produces a picture of the heart and blood vessels
28
TGC
Time gain compensation. A setting to account for tissue attenuation
29
Pulsed Doppler
Using sound waves to measure blood flow
30
Color Gain/Doppler
Amplification adjustment of the doppler signals received
31
Focus
Clarity adjustment at a specific depth in an image
32
Zoom
Setting that allows the image to be magnified
33
Dual (Split Screen)
Allows the user to view multiple images of the ultrasound simultaneously
34
Resolution
The ability of an ultrasound to distinguish different structures
35
Cine Loop
A series of ultrasound images captured in sequence
36
Acoustic Window
The area of the body that allows an ultrasound to pass easily