3DSlicer

1. Installation

1. Download 3D Slicer: Visit the official3D Slicer website and download the latest version compatible with your operating system (Windows, macOS, or Linux).
3. Install the Software: Follow the installation instructions for your specific operating system.

2. Familiarization with the Segment Editor

Steps:

1. Open 3D Slicer: Launch the 3D Slicer application.
2. Load Data: Click on the ‘Add Data’ button to load your MRI dataset into the software.

Access free sample data

Or you can access our own file using import dicom file

1. Access Segment Editor: Navigate to the ‘Segment Editor’ module located under the ‘Modules’ dropdown menu.

1. Create a New Segmentation: Click on the ‘Add’ button to create a new segmentation. Assign a name and select the MRI volume to segment.

3.Apply Thresholding

1. Select the Threshold Tool: In the Segment Editor, choose the ‘Threshold’ tool from the effect list.

2. Adjust Threshold Range: Use the sliders or input boxes to set the minimum and maximum intensity values for your threshold. Voxels within this range will be included in the segment.

   • Manual Adjustment: Drag the sliders to adjust the threshold range manually.
   • Automatic Adjustment: Use the ‘Auto’ button to automatically determine a suitable threshold range based on the image histogram.

3. press show 3d to render a 3D model

4. Refinement using the Scissoring Tool

The Scissoring Tool helps in refining the segmented images by removing unwanted parts.

Steps:

1. Select the Scissoring Tool: Choose the ‘Scissors’ tool from the effect list in the Segment Editor.

1. Configure Scissoring Options: Adjust the settings, such as the shape of the cutting region (freeform, rectangular, circular) and the operation mode (erase inside, erase outside).

1. Apply the Tool: Use the mouse to draw the scissor path over the segmented area. The unwanted parts will be removed based on your configuration.
2. Review Changes: Inspect the changes made by the scissoring tool and ensure the segmentation is as desired.

5. Saving and Exporting

Save Segmentation: Once satisfied with the segmentation, click on the ‘Save’ button. Ensure to save both the scene and the segmented images.