DICOM Explorer

Structure and display of Patients/Studies/Series

The DICOM Explorer is the panel on the left that displays the Patient/Study/Series representation defined in the DICOM standard.

The data displayed in the DICOM Explorer can be imported form different ways .

Weasis allows multi-patient display. By default, when images are imported a tab with the patient’s name opens in the main area.
A tab containing a multi-view layout can only display images from a single patient.
Changing patients can be done either through the first combobox in the DICOM Explorer (see image above) or by selecting a tab in the main area.
In the combobox the patients are sorted in alphabetical order regardless of case and according to the regional setting .
Studies and Series are displayed within the same patient when the metadata Patient Name and Patient ID are the same. Otherwise, new patients are displayed.

A study contains one or more series (thumbnails) belonging to a patient. A line representing the study surrounds its series (see image above).
By default, the studies are sorted by reverse chronology order (sincev4.1.0 “Study data sorting” can be changed in the menu “File > Preferences > DICOM > DICOM Explorer”). If there is no study date then the studies are sorted alphabetically according to the Study Description.
By default, all the studies are displayed, however you can choose to display only one of them from the study combobox.

A series is represented by a thumbnail that contains a certain number of images (number displayed at the bottom left).
According to predefined rules , some series are separated into sub-series also represented by a thumbnail with a number preceded by ‘#’ in the upper right corner. Series splitting is necessary for the consistency of some tools such as the MPR, cross-lines and synchronization of series.
The sorting of the series is done by the serial number and if this last one is not present then in a chronological way by the date of the series or other dates.
To open new series:
- Drag and drop a thumbnail in the main area (if the series is dropped in a view of the same patient then the series is replaced otherwise a new tab is created).
- Double click or navigate with the up/down arrow key and press return on a selected thumbnail (if a view of the same patient exists then the series in the view surrounded by an orange line is replaced)
- Select one or more thumbnails and choose an action from the “2D DICOM Viewer” context menu:
  - Open: Opens the series in the most appropriate layout (replaces the series if the patient’s tab already exists)
  - Open in new tab: Opens the series in the most appropriate layout in a new tab.
  - Open in screen: Opens the series in the most appropriate layout in a specific screen.
  - Add: Adds the series to the current patient’s layout if exists.

From the menu “File > Preferences > DICOM > DICOM Explorer”:

Thumbnail size: defines the width of the thumbnails and adjusts the panel accordingly (Default: 144). It is recommended to restart the application after this change.
Study data sorting: allows sorting the studies by chronological order or inversely chronological (Default: reverse chronology order). Sincev4.1.0 .
Open in new tab: behavior to automatically open the images of a patient when using WADO or WADO-RS (Default: All the patients)
Download all series immediately: allows starting the download of the series immediately when using WADO or WADO-RS (Default: true). If unchecked then you must click on the play button on each series or globally at the bottom of the thumbnail list.