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

A

Distance

24
Q

Sagittal/Longitudinal

A

Long stance on transducer (indicator at patients head)

25
Q

Transverse/Axial

A

Wide stance on transducer (indicator at patients right side)

26
Q

Transducer/Probe

A

The device that sends out sound waves to create images of the body

27
Q

ECHO

A

A ultrasound that produces a picture of the heart and blood vessels

28
Q

TGC

A

Time gain compensation. A setting to account for tissue attenuation

29
Q

Pulsed Doppler

A

Using sound waves to measure blood flow

30
Q

Color Gain/Doppler

A

Amplification adjustment of the doppler signals received

31
Q

Focus

A

Clarity adjustment at a specific depth in an image

32
Q

Zoom

A

Setting that allows the image to be magnified

33
Q

Dual (Split Screen)

A

Allows the user to view multiple images of the ultrasound simultaneously

34
Q

Resolution

A

The ability of an ultrasound to distinguish different structures

35
Q

Cine Loop

A

A series of ultrasound images captured in sequence

36
Q

Acoustic Window

A

The area of the body that allows an ultrasound to pass easily