Mindray Resona 7, Руководство оператора

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5-86 Image Optimization
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 tapping [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.
7. Exit contrast imaging.
Press <B> button to return to B mode.
5.13.1.1 Parameter Area Display
When entering contrast imaging mode, the screen displays the contrast image, and if [Dual Live] item on
the touch screen is “ON”, both the contrast image (marked with “ ”) and tissue image (marked with
“ ”) are displayed (the two window position can be changed). Parameter area displays as follows:
Type Parameter Description
Contrast
FC Contrast frequency.
D Depth.
G Gain.
FR Frame rate.
DR Dynamic Range.
iTouch iTouch status
Tissue
G Gain
DR Dynamic Range.
iTouch iTouch status
Zoom Z Magnification factor
Timing (If timer
is “ON”)
/
In real time mode, the time displayed is the elapsed time.
Freezing status:
Timer 1 continues timing and two times will be displayed on the screen:
frozen time and time duration after the image is frozen.
Timer 2 stops timing and the screen displays the frozen time.
5.13.1.2 Image Optimization
Parameters in Contrast mode are similar to those in B mode; please refer to B chapter for details, special
Contrast imaging parameters are introduced in the following.
5.13.1.3 Timer
The two timers are used to record total time of contrast imaging and single time of one contrast exam.