Ultrasound Basic Knobology & Controls

Basic Knowledge & Controls about Ultrasound Scanner (GE)

1. Ultrasound Basic Knobology & Controls

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

3. 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

4. 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

5. 1. Frequency High Optimal

6. 2 . Gain Low High Optimal

7. 3. Focus Position Near Field Far Field Optimal

8. 4. Depth Low High Optimal

9. 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

10. 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)

11. 1. PRF ( Velocity) Low High Optimal

12. 2. Color Gain Low High Optimal

13. 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)

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

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

16. 3. Sweep Speed Low High Optimal

17. 4. Doppler Gain Low High Optimal

18. Thank You for the Attention….