Skip to main content

Explore the 2D Viewer Page

This section provides an interface for annotators to interact with medical images, segment anatomical structures, and record measurements. The tools and functionalities are structured to facilitate precise and efficient annotation.

1. Header Section​

  • Back to Project Details: Allows users to navigate back to the project overview and manage other tasks or settings.
  • User Mode Selector: Users can switch between Annotator and Manager roles.
  • Time Indicator: Displays the time elapsed for the current session.

2. Role Selection​

  • User Mode: Users can select their mode (e.g., Annotator or Manager) based on their role and access rights.
  • Aided Mode Toggle: Enables or disables AI-assisted annotation tools for more precise segmentations.

3. Study and Image Navigation​

  • Study Selector: Dropdown menu listing all available studies for the user. Users can select a study to load the associated series and images.
  • Image List View: Users can switch between Image View and Series View to browse through available sequences and images within the study.

4. Label and Measurement Tools​

  • Label Selection: Allows users to select different anatomical labels (e.g., Vertebral Bodies) for annotation.
  • Measurement Selection: Provides specific measurement options like Anterior Height (AH), Middle Height (MH), Posterior Height (PH), and Vertebral Body Area (VA). These measurements can be applied to different vertebral levels (e.g., L1, L2, L3).

5. Segmentation Tools​

  • Segment Tools Panel: A toolbar containing various tools such as brush, eraser, contour, and area measurement for segmenting structures within the images.
  • Brush Configurations: Settings to adjust brush attributes like border width, threshold, and radius for precise segmentation.
  • Smart Segmentation Toggle: Activates smart segmentation features to automate some aspects of the segmentation process based on AI algorithms.

6. Study Completion and Review​

  • Study Completion Toggle: Users can mark a study as completed once all required annotations are done.
  • Completion Progress: Displays the percentage of completion based on the tasks finished.

7. Measurement and Annotation Details​

  • Measurement Input Fields: Users can manually input or adjust the measurements for specific vertebral bodies (e.g., L1, L2) based on segmented areas.
  • Save and Clear Buttons:
    • Save: Saves the annotated measurements and updates progress.
    • Clear: Clears the current segmentation and annotations for the selected structure.

8. Study List and Instance Details​

  • Study List Modal: When users click the study selector, a modal appears showing a detailed list of studies with descriptions, instance counts, and statuses. Users can select from these studies to load the appropriate sequences.
  • Instance Details: Shows the specific attributes of each instance (e.g., series number, instance count) for clarity.

This comprehensive interface is designed to streamline the annotation workflow, offering advanced tools and precise controls to ensure high-quality annotations and efficient progress tracking.

9. Brush Tool​

The Brush Tool is used for manual segmentation, allowing annotators to draw and refine regions directly on the image using a brush interface. This tool is essential for detailed, precise segmentation tasks where automated methods may not be sufficient.

10. Freehand Segmentation Tool​

The Freehand Segmentation Tool allows annotators to manually outline and segment structures with precision. This tool is ideal for complex shapes that require flexibility beyond predefined or automated boundaries, enabling the user to draw custom contours directly on the image.

11. Scissor Segmentation Tool​

The Scissor Segmentation Tool enables annotators to create precise segmentations by cutting along boundaries. This tool is particularly useful for separating structures that are close to each other or for defining clear edges within complex regions, ensuring accurate and clean segmentation results.

12. Threshold Brush Tool​

The Threshold Brush Tool allows annotators to segment regions based on intensity thresholds. Users can adjust brush settings like border width, brush threshold, eraser threshold, and brush radius to refine the segmentation. This tool is ideal for quickly segmenting areas that fall within specific intensity ranges, enhancing precision and control over the segmented regions.

13. Smart Rectangle Annotation​

The Smart Rectangle Annotation is a segmentation tool that uses an intelligent algorithm to identify and annotate structures within a rectangular region selected by the user. It simplifies the process by automatically refining the boundaries to match the target structure.

14. Smart Point Annotation (+) / (-)​

The Smart Point Annotation is a tool that allows users to click on a specific point within an image to automatically identify and segment the surrounding structure. The algorithm analyzes the region around the point and refines the boundary to accurately fit the anatomical structure, making segmentation efficient and precise.

Note: While UI elements such as icons and layout may change, the functionality of these tools will remain consistent across viewer versions.