Inobitec DICOM Viewer

6.8. Import and Export

6.8.1 Export structure and surface

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Functionality is available in the Pro edition
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To export a structure to a series of DICOM images, click the Export segmented structure PIC button. The series will be stored in the local storage and will be available on the Series Panels for this study.

To export a surface, click the Export mesh PIC button, in the dialog box that appears, select the file type (ply, obj or stl) and save the mesh.

To move the reference point (the point relative to which the model can be deformed in the Vector graphics editors) to the geometrical center of the mesh, click the arrow to the right side of the PIC button, click Export surface parameters... and in the dialog box that appears, check the Center mesh box.

To use the patient’s coordinates when exporting, click the arrow on the right side of the PIC button, click Export surface parameters... and in the dialog box that appears, check the Use patient coordinates box.

PIC You need to be aware that when the surface is printed by a 3D printer, errors may occur for the following reasons:
  1. The surface accuracy depends on the voxel size; the margin of error cannot be smaller than the voxel size.
  2. The boundaries of the structure for which the surface is created depend on the color palette for the initial volume. If a wrong palette is chosen, some tissues that are needed may become invisible, while some negligible tissues may become visible.
  3. The boundaries between tissues characterized by different density values may be blurred because of the physical principles behind the tissue scanning technology. The margin of error may be up to several voxels.
  4. The surface accuracy is subject to antialiasing and depends on the polygon count.

6.8.2 Import surface

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Functionality is available in the Pro edition
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To import a surface, click the Export segmented structure button PIC , in the dialog box that appears, select the file and press Open.

To use the patient’s coordinates, click the arrow on the right side of the PIC button, click Import surface parameters... and in the dialog box that appears, check the Use patient coordinates box.

To align the centers of the imported surface and the model when importing, click the arrow on the right side of the PIC button, click Surface Import Parameters... and in the dialog that appears, check the Add to the center box.

To move the imported surface manually, activate the tool Surface positioning PIC and move the surface on the plane of the screen, holding the left mouse button.

6.8.3 Saving project

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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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DICOM Viewer allows you to save segmentation projects and DTI projects to a file. One project can contain DTI structures and data for different series.

To save project, click the Save project PIC button. In the dialog that opens set the file path and file name and click OK to save or Cancel to cancel. The extension of the project file is .spj.

To open project, click the Open project PIC button. In the dialog that opens select the file containing the project for the current series, click Open to open or Cancel to cancel. The segmented structures contained in the file for the current series are added to the segmented structures panel. When you reopen the project, the data is added again without replacing the previously added. When editing structures in the segmentation panel, the content of the file does not change. Even if the file contains several projects, the structures (DTI data) are displayed only for those series that are currently open in the window.

To add current project to the existing project, click the Append to existing project PIC button. In the dialog that opens select the existing file and click Open to add project or Cancel to cancel. If the file already contains a project for this series, then a warning The project for this series has been already saved. Whould you like overwrite this project? appears. To overwrite the project click Yes, to cancel click No. When overwriting, projects for other series contained in the file are saved. To save the project and not lose the data already written to the file, open the project contained in the file and add it to this file along with the current data, overwriting the existing project.

When working with a merged series, the structures for all layers are saved regardless of which layer is currently selected.