How to download a study from Orthanc using C-MOVE (PynetDICOM)?

[Karam897]

Hello,
I am new to pynetdicom and I want to download a study from orthanc installed on my device, but I always get the error" Move SCP Result: 0xC000 (Failure)."
What should I add or modify for it to work correctly?
I have another question when downloading the study, where is it stored and is it possible to link it to my database?
here is my code
I hope you can help @scaramallion

from pydicom.dataset import Dataset
from pynetdicom import AE, evt, StoragePresentationContexts, debug_logger
from pynetdicom.sop_class import PatientRootQueryRetrieveInformationModelMove

debug_logger()
def handle_store(event):
    """Handle a C-STORE service request"""
    # Nothing fancy, just write to DICOM File Format
    ds = event.dataset
    ds.file_meta = event.file_meta
    ds.save_as(ds.SOPInstanceUID, write_like_original=False)

    return 0x0000

# Bind our C-STORE handler
handlers = [(evt.EVT_C_STORE, handle_store)]

# Initialise the Application Entity
ae = AE()
ae.add_requested_context(PatientRootQueryRetrieveInformationModelMove)
ae.supported_contexts = StoragePresentationContexts

#OUR_STORE_SCP = b'PYNETDICOM'
OUR_STORE_SCP = b'ORTHANC'
#ip11120 = 4242
#ip11120 = 11120
ip11120 = 11112
#ip11112 = 11112
ip11112 = 4242
# Start our Storage SCP in non-blocking mode, listening on port 11120
ae.ae_title = OUR_STORE_SCP
scp = ae.start_server(('127.0.0.1', ip11120), block=False, evt_handlers=handlers)

# Create out identifier (query) dataset
# Fill out your query as appropriate
ds = Dataset()
ds.QueryRetrieveLevel = 'PATIENT'
ds.PatientID = '301'

# Associate with peer AE at IP 127.0.0.1 and port 11112
assoc = ae.associate('127.0.0.1', ip11112)
i = 0
if assoc.is_established:
    # Use the C-MOVE service to send the identifier
    responses = assoc.send_c_move(ds, OUR_STORE_SCP, PatientRootQueryRetrieveInformationModelMove)

    for (status, identifier) in responses:
        if status and identifier:
            i += 1
            print('##############################')
            print('C-FIND query status: 0x{0:04x}'.format(status.Status))
            print('status = ', status)
            print('type(status) = ', type(status))
            print('status.Status = ', status.Status)
            print('type(identifier) = ', type(identifier))
            print('identifier = ',identifier)
            print('status.keys()  = ', status.keys() )
            print('identifier.keys()  = ', identifier.keys() )
            print('status.items()  = ', status.items() )
            for elem in identifier.elements():
                print('elem = ', elem)
            # If the status is 'Pending' then identifier is the C-FIND response
            if status.Status in (0xff00, 0xff01):
                print(identifier)
            print('##############################')
        else:
            print('Connection timed out, was aborted or received invalid response')


# Release the association
    assoc.release()
else:
    print('Association rejected, aborted or never connected')

# Stop our Storage SCP
    scp.shutdown()

thanks for everyone

[scaramallion]

Can you post the out from debug_logger() please?

from pynetdicom import debug_logger

debug_logger()

# rest of your code

[Karam897]

This is the output from debug_logger().

thank you for your reply @scaramallion

I: Requesting Association
D: Request Parameters:
D: ======================= OUTGOING A-ASSOCIATE-RQ PDU ========================
D: Our Implementation Class UID:      1.2.826.0.1.3680043.9.3811.2.0.2
D: Our Implementation Version Name:   PYNETDICOM_202
D: Application Context Name:    1.2.840.10008.3.1.1.1
D: Calling Application Name:    PYNETDICOM
D: Called Application Name:     ANY-SCP
D: Our Max PDU Receive Size:    16382
D: Presentation Context:
D:   Context ID:        1 (Proposed)
D:     Abstract Syntax: =Patient Root Query/Retrieve Information Model - MOVE
D:     Proposed SCP/SCU Role: Default
D:     Proposed Transfer Syntaxes:
D:       =Implicit VR Little Endian
D:       =Explicit VR Little Endian
D:       =Deflated Explicit VR Little Endian
D:       =Explicit VR Big Endian
D: Requested Extended Negotiation: None
D: Requested Common Extended Negotiation: None
D: Requested Asynchronous Operations Window Negotiation: None
D: Requested User Identity Negotiation: None
D: ========================== END A-ASSOCIATE-RQ PDU ==========================
D: Accept Parameters:
D: ======================= INCOMING A-ASSOCIATE-AC PDU ========================
D: Their Implementation Class UID:    1.2.276.0.7230010.3.0.3.6.7
D: Their Implementation Version Name: OFFIS_DCMTK_367
D: Application Context Name:    1.2.840.10008.3.1.1.1
D: Calling Application Name:    PYNETDICOM
D: Called Application Name:     ANY-SCP
D: Their Max PDU Receive Size:  16384
D: Presentation Contexts:
D:   Context ID:        1 (Accepted)
D:     Abstract Syntax: =Patient Root Query/Retrieve Information Model - MOVE
D:     Accepted SCP/SCU Role: Default
D:     Accepted Transfer Syntax: =Explicit VR Little Endian
D: Accepted Extended Negotiation: None
D: Accepted Asynchronous Operations Window Negotiation: None
D: User Identity Negotiation Response: None
D: ========================== END A-ASSOCIATE-AC PDU ==========================
I: Association Accepted
I: Sending Move Request: MsgID 1
I:
I: # Request Identifier
I: (0008,0052) CS [STUDY]                                  # 1 QueryRetrieveLevel
I: (0010,0010) PN (no value available)                     # 0 PatientName
I: (0010,0020) LO [301]                                    # 1 PatientID
I:
D: ========================== OUTGOING DIMSE MESSAGE ==========================
D: Message Type                  : C-MOVE RQ
D: Message ID                    : 1
D: Affected SOP Class UID        : Patient Root Query/Retrieve Information Model - MOVE
D: Move Destination              : STORE_SCP
D: Identifier                    : Present
D: Priority                      : Low
D: ============================ END DIMSE MESSAGE =============================
D: pydicom.read_dataset() TransferSyntax="Little Endian Implicit"
D: ========================== INCOMING DIMSE MESSAGE ==========================
D: Message Type                  : C-MOVE RSP
D: Presentation Context ID       : 1
D: Message ID Being Responded To : 1
D: Affected SOP Class UID        : Patient Root Query/Retrieve Information Model - MOVE
D: Completed Sub-operations      : 0
D: Failed Sub-operations         : 0
D: Warning Sub-operations        : 0
D: Identifier                    : None
D: Status                        : 0xC000
D: ============================ END DIMSE MESSAGE =============================
D:
I: Move SCP Result: 0xC000 (Failure)
I: Sub-Operations Remaining: 0, Completed: 0, Failed: 0, Warning: 0
D: pydicom.read_dataset() TransferSyntax="Little Endian Explicit"
C-MOVE query status: 0xc000
I: Releasing Association

[Karam897]

I hope you can help me with this,
Thank you very much @scaramallion

[scaramallion]

You're using a Patient root query with a STUDY level but don't have any of the required keys.

[Karam897]

Thank you, @scaramallion
Where are the required keys added, is it not this way as in the code, or must they be specified in another way?

ds = Dataset()
ds.QueryRetrieveLevel = 'PATIENT'
ds.PatientID = '301'
ds.StudyID = '16543'

[Karam897]

I'm sure the key values ​​are in orthanc,
I'm still confused as to why it don't work.
I hope you can help me with this. Thank you @scaramallion

[scaramallion]

You have registered your C-MOVE SCU and C-STORE SCP with orthanc, right?

[Karam897]

No, I am still learning DICOM
I didn't do that
How is it done?
But I did C-FIND operations by bynetdicom with orthanc and the query worked fine
Is this done through the orthanc.config file?
I hope you can help me with this. Thank you @scaramallion

[scaramallion]

OK, you should be able to follow this: https://orthanc.uclouvain.be/book/faq/query-retrieve.html

Essentially, unless you register the details of your pynetdicom C-MOVE SCU (its AE title). If you don't then orthanc won't allow you to do C-MOVE.
You also need to add your pynetdicom C-STORE SCP (ae title, ip address, port number) so orthanc knows where to send the results.

[Karam897]

If you only mean defining modality within the orthanc configuration file,
then I added this.
"PYNETDICOM" : [ "PYNETDICOM", "127.0.0.1", 11112 ]
Should I change or add anything else? @scaramallion

[Karam897]

Your help and information are very useful to me.
I hope you can explain to me whether defining this within the orthanc configuration file is sufficient or not.
“PYNETDICOM”: [ “PYNETDICOM”, “127.0.0.1”, 11112 ]
I hope you can help me with this. Thank you @scaramallion