7.6 Centerline building mode

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Functionality is available in a separate module which is activated in the Pro edition for an extra fee
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For analysis, it is necessary to build a centerline which is automatically located in the notional center of the vessel. Only one centerline can be built at a time. To save the built line and build a new one, bind it to a specific vessel from the list in the left part of the window (see Section 7.1.1).

PIC You need to control the process of building the centerline and make corrections, if needed.

7.6.1 Building the centerline

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Functionality is available in a separate module which is activated in the Pro edition for an extra fee
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You can build the centerline in two methods. To select a method click the arrow on the right side of the New Vessel PIC button and select the appropriate method (Fig 7.4). The current method is marked with a flag.


PIC

Figure 7.4: Select a method to build the centerline


  1. Building by one point. In this mode the line is built in both directions from the starting point for a maximum distance. If the vessel splits along the construction line, then the line is built in an arbitrary branch. To build the line, click the left mouse button at the starting point. To extend a vessel line, left-click in the right spot. The line will be built from the closest existing point and will pass through the new point.

  2. Building by two points. In this mode, the line is built from the starting point to the end point. To build the line, click at the starting and end points. The DICOM Viewer adds the required number of intermediate points to set the centerline. If the line is not completely built, then select the point up to which you want to extend the line and click in at it. The line will be built from the nearest existing point.

If the centerline for the selected points cannot be built, then the message Unable to trace vessel centerline from this point(s) appears.

If the line is not built correctly, then start building it again by clicking on the New vessel  PIC button or edit the line.

The initial research data or the volume reconstruction data can be used for building. To select the data source, click the arrow on the right side of the New vessel PIC button and select the appropriate source.

The centerline is shown in Fig. 7.5.


PIC

Figure 7.5: The centerline


To choose the vessel centerline visibility mode, click the arrow on the right-hand side of the New vessel PIC button and choose the Centerline visibility mode option (see Figure 7.6). The same command is available in the right-click menu. The current centerline visibility mode is ticked.


PIC

Figure 7.6: Select the vessel centerline visibility mode


The vessel centerline visibility settings will be applied next time you open the Vessel analysis window.