Synchronizing Image Sets Before Segmentation
Important: Image syncing must be completed before performing segmentation.
1. Open the Image Tabs
Open the Controller Menu.
Select the Images tab.
Under both the Primary and Secondary image tabs, you’ll see a clock icon.
Clicking this icon opens the Phase Timing Settings menu, where you can set parameters to synchronize both image sets.
2. Set the Cardiac Cycle Start Point (Primary Image)
In the Phase Timing Settings, look for the green arrow above the phase box.
This arrow marks the reference point that defines the start of the cardiac cycle.
Use the left and right toggles next to Cycle Start Index to adjust the start of the cardiac phase.
For this example, set the beginning of the cardiac cycle to atrial systole.
3. Adjust the Secondary Image Timing
Open the Phase Time Settings for the Secondary Image.
In an echocardiography (echo) series, we want to display one full cardiac cycle—the opening and closing of the valve.
Cycle through the image phases to identify the start and end of one cardiac cycle.
Use Trim from Start or Trim from End to remove any extra phases outside of the single cycle.
In this example, trimming is not necessary.
4. Synchronize with the CT Scan
Compare the cardiac phase of the CT scan with that of the echo.
In the CT scan, the heart is in atrial systole, where the mitral valve is open.
Open the Phase Timing Settings for the Secondary Image.
Using the Cycle Start Index, locate the image phase showing the open mitral valve.
You’ll see the green arrow move over this phase — indicating synchronization with the CT scan.
5. Verify Synchronization
Visually inspect both image sets to confirm the phases align.
Adjust the Cycle Start Index for the secondary image if needed.
6. Proceed to Segmentation
Once both image sets are synchronized, you can begin segmenting your model.