Anonymize objects on Retrieve

Overview

One may choose to apply an attribute coercion to anonymize objects which are retrieved to a destination. The de-identification of objects is done according to the Basic Application Level Confidentiality profile.

Configuration

Using Archive UI

• Go to Menu -> Configuration -> Devices -> dcm4chee-arc -> Device Extension -> Archive Device Extension -> Child Objects.
• Add a new Attribute Coercion. Give a suitable Name. Select DIMSE as C_STORE_RQ and DICOM Transfer Role as SCP. Select appropriate De-identification option and Save.

Using LDAP

• One may either create a LDIF file

    version: 1
    
    dn: cn=anonymizeObjectsOnRetrieve,dicomDeviceName=dcm4chee-arc,cn=Devices,cn=DICOM Configuration,dc=dcm4che,dc=org
    objectClass: dcmArchiveAttributeCoercion
    cn: anonymizeObjectsOnRetrieve
    dcmDIMSE: C_STORE_RQ
    dicomTransferRole: SCP
    dcmDeIdentification: BasicApplicationConfidentialityProfile
  

  and import it to the LDAP Server by using the ldapadd command line utility or the LDIF Import... function of Apache Directory Studio

• or directly use its New Entry... function to create corresponding Attribute Coercion entries. OR directly use the New Entry... function of Apache Directory Studio to create corresponding Export Rule entries on Device Level (e.g.: dicomDeviceName=dcm4chee-arc) or on Application Entity Level (e.g: dicomAETitle=DCM4CHEE) of the Archive Configuration.

One may refer to Archive Attribute Coercion to understand the description of attributes.

Go to the Control tab on Configuration page in archive UI and reload the configuration.

Testing

• store objects to archive

  storescu -c DCM4CHEE@localhost:11112 /path-to-study-object.dcm
  

  and verify its attributes using UI or dcmdump tool.

  dcmdump /path-to-study-object.dcm
  

  428: (0008,0020) DA #8 [19950608] StudyDate
  476: (0008,0030) TM #8 [131646.0] StudyTime
  524: (0008,0050) SH #8 [THU9948] AccessionNumber
  576: (0008,0080) LO #26 [PORTLAND ADVENTIST MED. C] InstitutionName
  610: (0008,0090) PN #8 [S LISOOK] ReferringPhysicianName
  626: (0008,1010) SH #18 [GENESIS_HISPEED_RP] StationName
  652: (0008,1030) LO #10 [CHEST/ABD] StudyDescription
  670: (0010,0010) PN #16 [WILKINS^CHARLES] PatientName
  694: (0010,0020) LO #6 [GE0514] PatientID
  708: (0010,0030) DA #0 [] PatientBirthDate
  716: (0010,0040) CS #2 [M] PatientSex
  726: (0010,1010) AS #0 [] PatientAge
  734: (0010,1030) DS #2 [0] PatientWeight
  744: (0018,0010) LO #14 [180CC HYPAQUE] ContrastBolusAgent
  954: (0020,0010) SH #4 [1784] StudyID
  

• Retrieve objects using movescu tool to storescp destination.

  storescp -b STORESCP:11115 
  

  movescu -c DCM4CHEE@localhost:11112 -m StudyInstanceUID=<StudyIUID> --dest STORESCP 
  

  Replace <StudyIUID> with value as required.

• Use dcmdump tool to check that attributes are anonymized when received at the destination.

  dcmdump /path-to-study-object-retrieved-at-STORESCP.dcm
  

  444: (0008,0020) DA #8 [] StudyDate
  484: (0008,0030) TM #8 [] StudyTime
  520: (0008,0050) SH #8 [] AccessionNumber
  564: (0008,0080) LO #26 [REMOVED] InstitutionName
  580: (0008,0090) PN #8 [] ReferringPhysicianName
  588: (0008,1010) SH #18 [REMOVED] StationName
  604: (0010,0010) PN #16 [] PatientName
  612: (0010,0020) LO #6 [] PatientID
  620: (0010,0030) DA #0 [] PatientBirthDate
  628: (0010,0040) CS #2 [] PatientSex
  636: (0012,0062) CS #4 [YES] PatientIdentityRemoved
  756: (0018,0010) LO #8 [REMOVED] ContrastBolusAgent
  992: (0020,0010) SH #4 [] StudyID