OsiriX is a DICOM viewer that can manipulate 3-D data sets and export the resulting Axial, Coronal and Sagittal images of the affected eye as jpeg files. These images are used by Plaque Simulator in conjunction with additional image sets for the calculation of the dose distributions in the affected eye.
Launch OsiriX & extracting patient CT data from disk.
Launch OsiriX by clicking on the Eye of Horus icon on the Dock.
Steps for preparing images to be used by Plaque Simulator.
- Insert patient's DICOM image disk into computer.
- OsiriX will load the images from the disk.
- The loaded image sets will appear on the left pane of the OsiriX window.
- Double-click on the desired study: Axial slices with 2 mm resolution.
- A new window will appear.
- Click on the 2D/3D button at the top of the window near the center.
- Select the 3D Curved - MPR menu item.
- Adjust the three orthogonal views to align with the appropriate eye.
- Export the Axial, Coronal & Sagittal views as jpeg files to be used by Plaque Simulator.
Steps in detail follow.
Manipulating the loaded image set.
Initial Screen
- The thumbnail images beneath the patient list represent the available studies for the selected patients.
- Double-click the thumbnail image of the desired study.
- The selected study will appear in its own separate window and can be scrolled through the image set.
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Initial Screen
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Opened Study
- Navigate through the Opened Study via the 2D/3D menu button.
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Opened Study
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2D/3D menu button
- Observe the Header and note the 2D/3D dropdown menu which appears as a gear button slightly to the left of center.
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2D/3D menu button
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2D/3D menu
- Click on the gear button.
- Select the 3D Curved - MPR menu item, the second item on the list.
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2D/3D-menu
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Initial 4-pane Presentation
- Four panes will appear showing the three orthogonal views and a blank pane.
- Quadrant I: Coronal View in the upper-right pane.
- Quadrant II: Sagittal View in the upper-left pane.
- Quadrant III: Axial View in the lower-left pane.
- Quadrant IV: Blank lower-right pane.
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Initial 4-pane Presentation
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Image Manipulation Tools
- Observe the Header and note the Image Manipulation Tools on the left side.
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Image Manipulation Tools
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Adjusted 4-pane Presentation
- Use the Tools in the Tools group in the header by clicking on the tool button desired.
- Placing the cursor over the intersecting axes in any image will produce a hand-cursor that will allow the two axes to be moved in unison.
- Moving the yellow vertical axis in the Coronal image is the best way to align the yellow axis in the Axial image.
- In the Axial image, the yellow axis is aligned with the axis of the eye and passes through the apex of the cornea and the midpoint of the lens.
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Adjusted 4-pane Presentation
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Exporting orthogonal images for Plaque Simulator
- Click on the desired orthogonal image to select it.
- A colored border will appear to indicate the selected image.
- Click on the File menu > Export > Export to JPEG
- Name the file as either Axial, Coronal or Sagittal.
- Select the patient folder as the destination for the jpeg image.
- Accept the default settings.
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Exporting orthogonal images for Plaque Simulator: Axial image
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