Once the Medical Image Data analysis is complete, you can access the data uploaded through the Data tab by either:
- Right-clicking on a Subject ID and selecting “Show Files” as shown in the figure below.
or
- Selecting the row of the Subject ID of interest and clicking “Other Options”, then “Subject Profile”. This will open a new tab showing some information from each of the Session IDs of the subject. From there, select a particular Session ID and click “See uploaded files” as shown in the figure below.
In either case, the pop-up window shown below will open showing the uploaded files together with the modalities and tags automatically added by the Medical Image Upload Data tool, as described in the image modalities classification article and the representative tags article.
These modalities and tags allow for the easy identification of the data available throughout the QMENTA Platform. In particular:
- The modality may be added as a search criterion when performing project data searches as indicated in section Filtering Metadata.
- Both modalities and tags are used as filters to automatically select the appropriate files for an analysis as shown in this article.
After selecting any of the files listed in the “Files” pop-up window above, you can choose to:
- “Edit Metadata”: This action will open a the pop-up window show below that gives you the possibility of modifying the modality and tags automatically identified by the Medical Image Data analysis for the selected file. The modality must be chosen from those available in the dropdown list, but you can add any desired tag. Ensure to click “Save” after making changes. This step might be required in the event that you consider the automatic classification to be incorrect.
- “Delete Files”: This action will delete the selected file(s) from the QMENTA Platform.
- “Download Selected”: This action will download the selected file(s) from the QMENTA Platform to your local computer.
- “Visualize”: Only applicable to DICOM series and NIfTI images. This action will open the pop-up window below that allows you to visualize the selected file.
In this viewer you can visualize the images in any of its planes (axial, sagittal, and coronal) and cycle the main slice view in a clockwise rotation via the “Swap View” button. The “+” and “-” buttons on the top right corner and the mouse’s wheel allow you to move across slices on the main slice view. You can also move across slices of specific planes with the keyboard:
- “Arrow up/down” to move across coronal slices.
- “Arrow right/left” to move across sagittal slices.
- “Page up/down” to move across axial slices.
The buttons “Go To Center” and “Go to Origin” take you to the center of the image and the origin of coordinates, respectively. The gradient on the top right corner allows you to change the rotation of the image, the colormap, and the window level. The window level can also be changed by right clicking and dragging the mouse. On the other hand, the left click allows you to identify the coordinates and intensity of the different voxels of the image (these values will be shown at the bottom). Pressing “Alt”, left click, and dragging allows you to zoom in and out of the image. Further, pressing “Alt”, “Shift”, left click, and dragging allows you to pan a zoomed image. Next to the gradient on the top right corner there can either be a globe or a plane
with crosshairs. These allow you to change the coordinate and view of the image from the image units (i.e., millimeters) to the image coordinates. Also, in 4D series you can move back and forth across series via the “,” and “.” buttons of the keyboard. Last, on the top left corner there are available the “View”, “Settings”, and “Help” buttons. These will allow you to further understand previous actions and modify certain viewer settings such as the smooth display of the image, the inclusion of a ruler, and cross-hairs among other view configuration options.
- “File info”: In addition to adding modalities and tags to files, the Medical Image Data analysis also extracts file-level metadata from the file’s DICOM headers. This action will open the pop-up window below and offers the possibility of visualizing all the metadata extracted for each file (a.k.a File Info). Further details on this are available in section Metadata Visualization.
In addition to performing the previous actions, you can also upload new files to the corresponding data session as explained in this article.
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