SonoSite M-Turbo, Руководство по обслуживанию

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Chapter 5: Performance Testing 37
M Mode Imaging
Tissue Harmonic Imaging
Pulsed Wave (PW) Doppler Imaging
Test M Mode
Imaging 1 Attach a C60x transducer and acquire an image.
2 Press the M Mode key for the M Mode sample line.
3 Position the M Mode sample line over the image using the touchpad.
4 Press the M Mode key again to turn on M Mode.
5 Select the desired sweep speed from the on-screen menu (slow, med, or fast). The on-screen
menu will show the selected sweep speed.
6 Press the Freeze key to freeze the image. Save the image. Press the Freeze key again to
return to live imaging.
7 Press the 2D key to return to 2D imaging.
Test THI
Imaging 1 Attach the C60x transducer and acquire an image.
2 Set the depth to maximum and note the depth at which echo information is lost.
3 Press the THI key on the control panel so it displays THI on the display. Tissue Harmonic
Imaging in now active.
4 Observe a decrease in dot size and a significant loss in penetration due to the higher
frequency. Image resolution increases.
5 Press the Freeze key and then save the image. Press the Freeze key again to return to live
imaging.
6 Press the THI key again to turn off Tissue Harmonic Imaging.
Test PW
Doppler
Imaging 1 Attach the P21x transducer.
2 Press the Doppler key for the Doppler sample gate.
3 Press the Doppler key again for the Doppler spectral trace.
4 Place a large drop of ultrasound gel on the transducer lens.
5 Adjust the Gain control as necessary and then gently tap the top of the gel and observe a
reflection on the spectral trace and the sound from the speakers.
6 Press the Freeze key and then save the image. Press the Freeze key again to return to live
imaging.
7 Press the 2D key to return to 2D imaging.