gacou54
commented
1 year ago Hi!
The find function will index all resources (patients, studies, series and instances) that fit the filters (the (patient/study/series/instance)_filter parameters) that are in the Orthanc server, independently of if they are stable or unstable. Note that this makes find a function that can be long to process, especially on large Orthanc servers or when you parse/apply a filter on CT instances.
As for the IsStable criteria, you can still parse with it since it is in the DICOM Ressource main information. With find, for example:
import pyorthanc
orthanc = pyorthanc.Orthanc('url', 'username', 'password')
def is_patient_stable(patient: pyorthanc.Patient) -> bool:
return patient.get_main_information()['IsStable']
stable_patients = pyorthanc.find(o, patient_filter=is_patient_stable)
# You can now check the data
stable_patient = stable_patients[0]
# Because the find method has been used, all the
# child studies/series/instances have been indexed
a_study = stable_patient.studies[0]
a_series = a_study.series[0]
instance = a_series.instances[0]
pydicom_dataset = instance.get_pydicom()If you don't want to parse all the DICOM level, but only the studies for example, you can still do something like that
from pyorthanc import Study, Orthanc
orthanc = Orthanc(...)
def is_study_stable(study: Study) -> bool:
return study.get_main_information()['IsStable']
stable_studies = [Study(id_, orthanc) for id_ in orthanc.get_studies() if is_study_stable(Study(id_, orthanc))]Hope that helps! I plan to do much documentation soon, that's the kind of thing I would add.
Don't hesitate to comment back if you still have questions.
I am wondering about the behavior of find function, will it pull stable and unstable resource ? or just stable ones ?
Definition of stable from Orthanc book: A DICOM resource (patient, study or series) is referred to as stable if it has not received any new instance for a certain amount of time.