User controls

Question 1

turning gain knob to the left

Answer 1

makes overall image darker

Question 2

turning gain knob to the right

Answer 2

makes overall image brighter

Question 3

over gained

Answer 3

too bright

Question 4

under gained

Answer 4

too dark

Question 5

what is gain

Answer 5

image amplification (image brightness/darkness)

Question 6

B-mode

Answer 6

regular 2D imaging ultrasound scanning

Question 7

PW

Answer 7

pulse wave - colour used for vascular scanning

Question 8

colour doppler

Answer 8

colour doppler used for vascular scanning

Question 9

frequency selector

Answer 9

allows sonographer to switch bw different frequencies that the probe has to adjust for optimal imaging frequency parameters for that patient and ROI

Question 10

TGC

Answer 10

time gain compensation
- set of sliders that corresponds and adjusts the depths of the sound beam, if not set correctly can cause image artefacts (creating dark and bright bits in the image)
this is operator dependent and to fix, just adjust the parameters until its what you want

Question 11

how should the TGC normally be set at

Answer 11

aligned appropriately - generally in an even diagonal line (top on the very left of the slider and bottom at the very right) to create a nice even depth all the way through the image

Question 12

sliding the TGC to the left

Answer 12

makes image darker at the depth of the sliders you have moved to the left

Question 13

sliding the TGC to the right

Answer 13

makes the image brighter at the depth of the sliders you have moved to the right

Question 14

freeze button

Answer 14

captures the last 100-300 frames for the sonographer to go through to pick the best images to store or print

Question 15

image capture

Answer 15

allows sonographer to take images of the live scanning examination to assist the radiologist for their report. important to note that its operator dependent so if sonographer has missed something, the radiologist cant see if it isnt imaged and cannot report it

Question 16

PW

Answer 16

pulse wave

Question 17

read zoom/ read magnification

Answer 17

can be done in post-processing, enlarges a small no. of pixels in a magnified form

Question 18

zoom depth

Answer 18

has to be done before post-processing. this enlarges the image (not the pixel size)
- theres a scale that shows us how deep structures are, we can zoom in to better look at something and zoom out to include more

Question 19

text

Answer 19

allows us to label structures and pathologies. helps radiologist with orientation and understanding exactly what is imaged

Question 20

focus

Answer 20

you can adjust the focal zone or multiple focal zones to the area of interest. this focuses the beam to ensure maximum resolution is at the area of interest