Annotation Features

CARPL Viewer contains several annotation features which can be used by radiologists to quickly annotate cases.

Below is a list of features:

• Region of Interest (ROI) Tools

ROI tools allow users to mark-up specific areas of images which can be referenced later. Note that all ROIs are stored in a universally applicable JSON format on CARPL.

• • Rectangular ROI - enables the user to create rectangular ROIs over images

  • Length Tool - allows users to measure length on images. The length measurements are also saved to the database along with their respective labels.

  • Ellipse Tool - allows users to create elliptical, including circular, ROIs on images.

  • Freehand / Polygon Tool - allows users to create freehand ROIs when the mouse left-button is constantly pressed, and allows the user to make polygon ROIs when the user clicks at every point.

• AI Panel

The AI panel is a collapsible panel on the right side of the viewer which contains the following:

• ROI Details - the AI panel contains details (label, description) of each ROI on the entire study

• Form Details - the AI panel contains the annotation form, details of which are created through the annotation template

• Comments Box - the AI panel contains a comments box in which the user can leave any comments that they would like

• Save, Next, Previous Buttons - use these buttons the navigate between studies

• Save & Complete - use this button to save the annotations on the study and proceed to the next scan. Also, all annotations are saved and the scan is marked as 'complete'.

• Auto-Save

  • Turn auto-save on to automatically save ROIs as they are created. No need to click "save".