Samsung HS40 - Page 167

Chapter 4. Product Inspection 4 – 5
■ Color Doppler Mode/Power Doppler Mode
1. Perform a Phantom test to check for errors in the image.
2. Check the operations related to the Select Image menus (Balance, Sensitivity, Color
Mode, Display, CFR).
3. Check for changes in the image in accordance with changes in depth.
4. Check the Freeze Cine actions (broken image, Auto Run, Auto Run Speed, Trackball
Cine).
5. Check for changes in the image brightness when you adjust Color Gain.
6. Check for noises and breaks in the image (B or C Mode Noise) when you move the ROI
Box.
7. Check for noises and breaks in the image (B or C Mode Noise) when you resize the ROI
Box.
8. Adjust the Scale up and down to check whether or not the frequency changes and speed
range of blood flow is adjusted. (Check by actually performing a scan.)
9. Operate Filter to check whether small signals are removed by stage.
10. Check whether or not the Color Bar is inverted when you operate the Invert key.
11. Move the Baseline up and down to check whether the speed range of blood flow moves
to the “+” or “-” position.
■ PW Spectral Doppler Mode
1. Perform a Phantom test to check for errors in the image.
2. Check whether Doppler’s PRF value changes when you set Simultaneous to on/off.
3. Check for errors in the Doppler spectrum.
4. Change the Scale to check the change in velocity range.
5. Move the Baseline up and down to check whether the spectrum range moves to the “+” or
“-” position.
6. Check whether changing the Filter removes low signals from the Spectrum.
7. Check whether the Doppler wave form is inverted when you operate Invert.
8. Perform Angle action.
9. Change the position and size of SV and check for errors.
10. Check whether the Spectrum image changes when you change the Spectrum’s Type.
11. Check for errors in Sound Volume.
12. Perform Auto Calc and check whether the line is displayed without breaks, and also
whether the calculated results are automatically carried out.
13. Check for errors in Top Down Format and Side by Side Format images when Loop
Format is selected.
14. Check the Cine/Loop (broken image, Auto run, Auto run speed, Trackball Cine)
operations.