Basic Worklist Management Service Examples¶
The DICOM Basic Worklist Management Service provides a mechanism for a service user to access worklists on another AE. Querying of the SCP for worklists is accomplished by utilising the DIMSE C-FIND service.
Basic Worklist Management SCU¶
Associate with a peer DICOM Application Entity and request the
worklist for the application with AE title CTSCANNER
for the 5th October
2018. The approach is very similar to that of a Query/Retrieve (Find) SCU,
however BWM uses a different
set of attributes
for the Identifier.
from pydicom.dataset import Dataset
from pynetdicom import AE
from pynetdicom.sop_class import ModalityWorklistInformationFind
# Initialise the Application Entity
ae = AE()
# Add a requested presentation context
ae.add_requested_context(ModalityWorklistInformationFind)
# Create our Identifier (query) dataset
ds = Dataset()
ds.PatientName = '*'
ds.ScheduledProcedureStepSequence = [Dataset()]
item = ds.ScheduledProcedureStepSequence[0]
item.ScheduledStationAETitle = 'CTSCANNER'
item.ScheduledProcedureStepStartDate = '20181005'
item.Modality = 'CT'
# Associate with peer AE at IP 127.0.0.1 and port 11112
assoc = ae.associate('127.0.0.1', 11112)
if assoc.is_established:
# Use the C-FIND service to send the identifier
responses = assoc.send_c_find(
ds,
ModalityWorklistInformationFind
)
for (status, identifier) in responses:
if status:
print('C-FIND query status: 0x{0:04x}'.format(status.Status))
# If the status is 'Pending' then identifier is the C-FIND response
if status.Status in (0xFF00, 0xFF01):
print(identifier)
else:
print('Connection timed out, was aborted or received invalid response')
# Release the association
assoc.release()
else:
print('Association rejected, aborted or never connected')
Basic Worklist Management SCP¶
The approach will be similar to the Query/Retrieve (Find) SCP example.