Clearcanvas Connection string for ImageServer “EndpointAddress”

Question

NOTE:: I have also asked this question on the Clearcanvas forums at:: http://www.clearcanvas.ca/dnn/tabid/69/afv/topic/aff/11/aft/15086/Default.aspx

Hi, i'm making my own ImageViewer in WPF & now need to load DICOM files with the ImageServer. I'm NOT using the Workstation as a starting point, i'm making a viewer from scratch using the (ClearCanvas.Dicom.dll). I have set up the ImageServer on my computer for testing & can connect to it with the workstation app, but not with my app(& that is my problem).

When I try to connect to the ImageServer via the code below the connection times out. I can connect to my ImageServer with the Workstation app. I'm not sure how to configure my connection string I think.

{
    EndpointAddress endpoint = new EndpointAddress("http://localhost:104/ClearCanvas/ImageViewer/Automation?wsdl");
    StudyRootQueryServiceClient client = new StudyRootQueryServiceClient(binding, endpoint);
    client.Open();    
}

Here is the setting I use in the Workstation to connect, so how do I translate this to a connection string??

{
    Server Name= ImageServer
    Host= localhost
    AE Title= SERVERAE
    Port= 104
}

Answer 1

I'd assume you would want to load the images from the ImageServer via DICOM. This would require a DICOM C-FIND request against the ImageServer to retrieve the list of studies on the ImageServer. You would then need to select a specific study and issue a DICOM C-MOVE request to move the study to your application. Note also that you will need a DICOM Storage SCP application to listen for incoming DICOM associations and your application will have to be configured as a device on the ImageServer.

To issue a C-FIND request using the ClearCanvas DICOM library, the following code could be used:

StudyRootFindScu findScu = new StudyRootFindScu();
StudyQueryIod queryMessage = new StudyQueryIod();
queryMessage.QueryRetrieveLevel = QueryRetrieveLevel.Study;
queryMessage.SetCommonTags();

IList results = findScu.Find("LocalAETitle", "SERVERAE", "localhost", 104, queryMessage);

foreach (StudyQueryIod item in results)
{
    string AccessionNumber = item.AccessionNumber;
    string PatientID = item.PatientId;
    string Sex = item.PatientsSex;
    DateTime BirthDate = item.PatientsBirthDate;
    string StudyName = item.StudyDescription;
    string PatientName = item.PatientsName;
    string StudyUID = item.StudyInstanceUid;
    DateTime StudyDate = item.StudyDate.Value;
    string Modality = item.Modality;
    string ReferringPhysiciansName = item.ReferringPhysiciansName;
}

Note that if you want to "filter" your query, you could set additional tags to match on in the queryMessage.

Once you've selected a study from the resuts, to Issue a DICOM C-MOVE request, the following code could be used:

string studyInstanceUid = "1.1.1."; // Fill in with the real Study Instance UID
ClearCanvas.Dicom.Network.Scu.MoveScuBase moveScu = new ClearCanvas.Dicom.Network.Scu.StudyRootMoveScu("LocalAETitle", "SERVERAE", "localhost", 104, "LocalAETitle");
moveScu.AddStudyInstanceUid(studyInstanceUid);
moveScu.Move();

Finally, the ClearCanvas source does have a Storage SCP implementation. I would suggest looking at the file in Trunk\Dicom\Samples\StorageScp.cs. This takes a fair amount of extra code to implement.

Answer 2

This is a NOTE / INFO for others::

As "Steve Wranovsky" stated, take a look at StarageScp.cs in the clearcanvas src. In there you will find the StorageScp class that I have successfully used to accomplish retrieving a file from my ImageServer. First make sure you configure your Device port in your ImageServer under Admin/Configure/Devices to 106 or something.

Then this is how you start the StorageScp class to Listen on your port.

StorageScp.StorageLocation = @"C:\Users\USER\Downloads\DICOM\ScpTEST";
StorageScp.StartListening("LocalAETitle", 106);
while(!StorageScp.Started) System.Threading.Thread.Sleep(10);

Remember to stop Listening when you close your app.

StorageScp.StopListening(106);

Then you just make your C-Move call to receive your DICOM file while your StorageScp class is listening.

MoveScuBase moveScu = new StudyRootMoveScu("LocalAETitle", "SERVERAE", "localhost", 104, "LocalAETitle");
moveScu.AddStudyInstanceUid(StudyUID);
moveScu.Move();

Also if you would like to send a file to the ImageServer look at StorageScu.cs & to use the class do something like this...

StorageScu scu = new StorageScu();
scu.AddFileToSend(d.FileName);
scu.Send("LocalAETitle", "SERVERAE", "localhost", 104);