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Flashcards in Instrumentation And Controls Deck (41)
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1

Displays images in black and white combinations only

Bi-stable scanning

2

A single dimension display consisting of a horizontal baseline

A-mode ( Amplitude mode)

3

A-mode is used for

ophthalmology

4

Spikes depicting the acoustic interfaces

Deflection

5

Two dimensional display of ultrasound.

B-mode /Brightness mode

6

B-mode is also called

B-Scan or Gray scale sonography

7

Used to visualize things that are physically moving.

Tho motion is one dimensional scan line is displayed.

M-Mode / Motion Mode

8

Older references for M-mode

TM mode / Time Motion mode

9

Most commonly used in the evaluation of cardiac valves and fetal heart activity

M-mode

10

Uses the frequency shift of sound waves to measure velocity

Doppler

11

Most commonly used modes of doppler

Color - Flow Doppler
Power or Angio Doppler
Spectral Doppler (PW and CW)

12

Designed to regulate the intensity pf echoes from various depths

Controls

13

Adjusting tge B-mode image

Depth
Gain
Time - gain compensation
Zoom
Keyboard
Focus
Dynamic Range
Extended field of view

14

Ultrasound Scanning Modes

Bi-stable scanning
A-Mode
B-Mode
M-Mode
Doppler

15

Controls how much distance into the body the image displays in the far field

Used to adjust the size of the image

Depth

16

Depth is decreased, superficial structures will be

Magnified

17

Knob that adjust the overall UTZ echo signal

Gain

18

Allow selective control of gain at different depths

Time Gain Compensation (TGC)

19

Allows for the magnification of one area on the screen

Zoom

20

Various capabilities as provided by the manufacturers

Keyboards

21

Concentrates the sound beam into a smaller beam area than would exist otherwise

Focus

22

Determines how many shades of gray are demonstrated on an image

Dynamic Range

23

Real time ultrasound successive frames to form a panoramic image as the transducer is moved across the patient

Extended Field of View

24

Achieved by manually sliding the transducer in a direction parallel to the scan plane

Paranomic imaging

25

Manipulating the image

Freeze
Cine Loop
Trackball
Calipers
Acquiring images
PACS
Output device

26

Used to create a still image on the monitor

Freeze

27

Allows operator to review a sequence of acquired image

Cine loop

28

Allows the sonographer to select an appropriate image for study

Slow - motion review

29

Used for moving objectson the monitor

Trackball

30

Available to measure distances

Caliper