Features > Web Access to DICOM Objects (WADO Support)

Introduction

The ImageServer software supports the DICOM Web Access to DICOM Objects (WADO) standard. The ImageServer currently supports the application/dicom MIME type for processing WADO requests.

The ImageServer software also supports a private MIME type, application/clearcanvas. This MIME type is used for the streaming functionality of the ImageServer. For objects that are compressed on the server, it will return the raw compressed data for a frame. If the data is uncompressed, the raw uncompressed pixel data for the requested frame will be returned.

The following shows an example URL for WADO requests. Note that the WADO server is not integrated in with the Web server, but listens on a dedicated port (port 1000 by default). Note also that the DICOM AE Title of the partition must be used in the URL. In the following example, the AE Title CLEARCANVAS is used.

http://serverip:1000/wado/CLEARCANVAS?requestType=WADO&contentType=application%2Fdicom

&studyUid=<STUDY_ID>&seriesUid=<SERIES_ID>&objectUid=<OBJECT_ID>

Note also that the ImageServer supports a web service for returning header information for a specified study. A list of all of the DICOM tags contained in a study is returned to a client application. This functionality is also used with the streaming functionality so that a client can decide which images to request via WADO.

Client software is being integrated into the ClearCanvas Workstation application to support streaming of studies from the ImageServer.