Image Optimization 5-83
5.12 Contrast Imaging
2D contrast imaging is used in conjunction with ultrasound contrast agents to enhance imaging of
blood flow and microcirculation. Injected contrast agents re-emit incident acoustic energy at a
harmonic frequency much more efficient than the surrounding tissue. Blood containing the contrast
agent stands out brightly against a dark background of normal tissue.
Contrast imaging is an option. Only the following probes support contrast imaging:
The probes C5-1E/ SC5-1E/C7-3E support abdominal contrast imaging and vessel contrast
imaging.
The probe C6-2GE supports abdominal contrast imaging.
The probe L9-3E supports small organs contrast imaging and abdominal contrast imaging.
The probe L12-3E supports small organs contrast imaging.
The probes V11-3E/ V11-3BE/ V11-3HE support oviduct contrast imaging.
Set MI index by instructions in the contrast agent accompanied
manual.
Read contrast agent accompanied manual carefully before using
contrast function.
Make sure to finish parameter setting before injecting the agent into the patient to avoid
affecting image consistency. This is because the acting time of the agent is limited.
The applied contrast agency should be compliant with the relevant local regulations.
5.12.1 Basic Procedures for Contrast Imaging
To perform a successful contrast imaging, you should start with an optimized 2D image and have
the target region in mind. To perform a contrast imaging:
1. Select an appropriate probe, and perform 2D imaging to obtain the target image, and then fix
the probe.
2. Press to enter the contrast imaging mode.
3. Adjust the acoustic power experientially to obtain a good image.
Tap [Dual Live] to be ―On‖ to activate the dual live function. Observe the tissue image to find
the target view.
4. Inject the contrast agent, and set [Timer 1] at ―ON‖ to start the contrast timing. When the timer
begins to work, the time will be displayed on the screen.
5. Observe the image, use the touch screen button of [Pro Capture] and [Retro Capture] or the
user-defined key (usually ―Save1‖ and ―Save2‖) to save the images. Press <Freeze> to end
the live capture.
Perform several live captures if there are more than one interested sections.
6. At the end of a contrast imaging, set [Timer 1] as ―OFF‖ to exit the timing function. Perform
procedures 3-5 if necessary.
For every single contrast imaging procedure, use [Timer 2] for timing.
If necessary, activate destruction function by touching [Destruct] as ―ON‖ to destruct the micro-
bubbles left by the last contrast imaging; or to observe the reinfusion effect in a continuous
agent injecting process.