Physiological Unit Signal 7-3
If the delay time is longer than a heart cycle, then the heart cycle in the delay time is omitted,
that is to say no trigger is occurred when R waveform is detected in the duration.
7.1.2.2
Triggering Mode
There are three triggering modes available: Single, Dual, and Timer.
Single Trigger:
When an R waveform is detected, an image will be triggered after delay time
T1The time of T1 can be edited in single mode.
Dual trigger: when an R waveform is detected, two images in two windows will be triggered
respectively after delay time T1 and T2.The time of T1 and T2 can be edited in dual mode.
Timer Trigger: an image will be triggered after a time interval.The time interval can be edited in
triggering status.
The image triggering operation is described as follows (Take single trigger as an example):
1. Select exam mode.
2. Tap [Trig Mode] on the touch screen to enable the trigger.
3. Select [Single].
4. Set the delay time (or use the T1 by default).
7.1.2.3
Real & Trigger
Tap [Real & Trigger] to enable or disable the real trigger function.
After the [Real & Trigger] is enabled, two images are displayed respectively in two windows. One is
triggered by ECG, and the other is non-triggered real time image.
7.1.3
ECG Review
7.1.3.1
Review Principle
When an image is frozen, the ECG waveform where the image is triggered will be frozen at the same
time.In the Dual triggering mode, the two window images are frozen at the same time.When images are
reviewed with the ECG electrodes connected, the ECG trace is the reference for time.
After the images are frozen, all real time images are in the status of linked review.
7.1.3.2
Linked Review of ECG Waveforms, M/D Images and 2D Images
If the physio unit signal, time curve and 2D image are frozen at the same time, the replays of them are
displayed at the same time.
7.2
PCG
NOTE:
Check PCG each time before use.If there are any cracks or scratch, please contact the sales
representative.
If there is no ECG signal (PCG waveform is flat) after entering ECG mode, please check
whether the sensor plug is connected well.
Do not hot unplug the PCG sensor.
To satisfy the PCG sensor's receiving performance, do not rub the acoustic window hard
because of the vulnerability of the silicone.
7.2.1
PCG Operation Basic Procedures
1. Connect PCG sensor.
1) Connect the PCG sensor to the corresponding interface on the physiological module.
