Basic Knowledge & Controls about Ultrasound Scanner (GE)

1. Ultrasound
Basic Knobology & Controls

2. 2 /
GE Title or job number /
3/30/2018

3. 3 /
GE Title or job number /
3/30/2018

4. Different Types of Probes:-
1. Convex 2.TV/TR 3. Linear 4. Echo 5. Volume
Probe

5. Ultrasound Basic Modes:-
1. B-Mode – Brightness Mode (2D Mode)
2. M-Mode – Motion Mode
3. CF –Mode – Color Flow Mode
4. PDI –Mode – Power Doppler Imaging Mode
5. PW- Mode – Pulse Wave doppler Mode
6. CW –Mode – Continuous wave doppler Mode

6. B-Mode:-
1. Frequency – Higher the Frequency Lower the penetration (2 Mhz to 5.5 Mhz)
2. Grey map – To adjust the varoius grey shades of 2D image.( A to Z)
3. Depth - Less depth will have higher the frame rate (Upto 30 cm)
4. Scan Area (Field of View) – Less Scan area will have more frame rate.
5. Gain – To increase /decrease the brightness of image.
6. Tissue Harmonic Imaging –Gives more penetration and avoid Re Vibrating
artifacts
7. Zoom – To magnify the particular region of interest (ROI).
8. Focus Position – It should be always against R.O.I to have better focus.
9. Dynamic Range – It is used to adjust the sharpness of 2D image.
10 .Time Gain Compensation (TGC) – Its used to adjust the gain in the particular
ROI

7. 1. Frequency
High Optimal

8. 2. Gain
Low High
Optimal

9. 3. Focus Position
Near Field Far Field
Optimal

10. 4. Depth
Low High
Optimal

11. M-Mode:-
1. M- Mode Gain – To adjust the brightness of the image.
2. M/D Cursor – Line used to cut the area where we want to take the M- Mode
3. Anatomical M-Mode – Its mainly used for Cardiac imaging where instead of
changing the patient position , we can change the cursor line

12. CF -Mode:-
1. Color Flow Map – It gives various shades of Color Maps for the user comfort.
2. Color Box - Less Box Size will have more frame rate
3. Box Steer – Always towards the flow especially in Linear probe
4. PRF – Pulse Repetition Frequency - It is used to avoid the aliasing effect
5. Color Flow Gain – To increase /decrease the flow level in the vessel.
6 .Auto Color optimization (AO) – One touch of key will adjust the Color gain by the
machine Itself (ACO)

13. 1. PRF ( Velocity)
Low High
Optimal

14. 2. Color Gain
Low High
Optimal

15. Doppler -Mode:-
1. Sample Volume (SV – Gate ) – It should be one third of Vessel diameter
2. Base Line – This used to adjust the base line of the doppler wave form
3. PRF Scale – Its used to adjust the Velocity Scale to see doppler wave form fully.
4. Angle correction – Normally its should be less than 60 degree
5. Doppler Gain – To increase /decrease the brightness of wave form
6. .Auto Spectral optimization – One touch of key will adjust the Scale and base line
of
the spectral wave form by the machine itself (ASO)
7.Auto Doppler Calculation - One touch of key machine will give the calucations like
(PS /ED /PI /RI/ PS.ED/ AT)

16. 1. PRF ( Doppler Scale)
Low High
Optimal

17. 2. Base Line ( Doppler )
Low High
Optimal

18. 3. Sweep Speed
Low High
Optimal

19. 4. Doppler Gain
Low High
Optimal

20. Thank You for the
Attention….