NOTE: DICOM studies do not use the Detection Question.
The detection question allows the user to map and annotate an image. Mapping identifies the co-ordinates for an area on the image which can then be used for detection type questions for the case. The “map” is used to determine if the user is selecting the correct or incorrect area of the image based on the detection question co-ordinates. The user is also allowed to annotate the image. Annotation allows the user to draw a visual cue on an image. This visual cue will help the user display an area on the image.
Creating the Detection Question:
To create a detection question within RCMS, check out the case and access the Questions tab.
Add a detection question by selecting the [Add] button located at the bottom of the Questions box.
Select the Detection type question using the radio buttons and the question category as Detection. Type in the question stem and then select [Submit question to case questions] to create the question.
Adding the image map and annotation:
Once the question stem is submitted, RCMS will display functionality for the detection maps and answer explanations. The first step is to select the image either from the images tab or, for mammo cases, from the image map created using the Mammography tab. Locate the buttons below the image box and click the appropriate button.
Either selection button will display a box with the available images.Click on the image to be used and then use the [Insert] button to add the image to the detection question.
Once the image is displayed, the map and annotation need to be added. Click on the + Detection Map (located under the grid on the right) to add a detection map to the image. Multiple detection maps can be added for a single image. Each map will require a separate line in the grid.
The grid for the map will be displayed and a message "Detection Map added successfully."
First add the map (x,y co-ordinates on the image that the user must click on to identify the area) to the image. Select the Map button to the top left. This will activate the tools along the left side of the image.
Select a shape tool and identify the area on the image for the detection map by clicking then dragging to indicate the map shape.
Change the line or text size and font by clicking on the "gear" icon or right clicking the selected item (item is selected when the "boxes" are displayed on top of the item.
Next select the Annotations button on the top left. Select a shape tool, drag and drop to create the annotation. The annotation will be displayed to the user answering the question.
You can toggle on and off the map and annotation use the "eye" icons located on the grid for the map.
For mammography images MLO and CC, designate the midline between the images and the left and right side for the map.
If this detection question does not have a mapped abnormality, place a check mark for the no abnormality option.
Enter the correct answer explanation and the incorrect answer explanations.
Ability to modify the name of the map.
Identify if the detection map is for a correct response (abnormality) or if it is incorrect (artifact).
Option for a "free click".