Overview
Updated: 30 JuneJuly, 2015 2017
Excerpt |
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Following industry best-practices, TCIA uses a standards-based approach to de-identification of DICOM images to insure that images are free of protected health information (PHI). The TCIA de-identification process ensures that the HIPAA de-identification standard is met by following the Safe Harbor Method as defined in section 164.514(b)(2) of the HIPPA Privacy Rule. The standard for de-identification of DICOM objects is defined by the DICOM Standard PS 3.15-2011 Digital Imaging and Communications in Medicine (DICOM), Part 15: Security and System Management Profiles (ftp://medical.nema.org/medical/dicom/2016b/output/html/part15.html#chapter_E). At the submitting site, a DICOM PS 3.15 compliant script removes or modifies DICOM tags deemed to be unsafe (See table 1 for a complete listing). TCIA incorporates the “Basic Application Confidentiality Profile” which is amended by inclusion of the following profile options: Clean Pixel Data Option, Clean Descriptors Option, Retain Longitudinal With Modified Dates Option, Retain Patient Characteristics Option, Retain Device Identity Option, and Retain Safe Private Option. The de-identification rules applied to each object are recorded by TCIA in the DICOM sequence Method Code Sequence [0012,0063] by entering the Code Value, Coding Scheme Designator, and Code Meaning for each profile and option that were applied to the DICOM object during de-identification. The DICOM standard for de-identification of objects defines a minimum set of elements to de-identify to be in compliance with the standard. It is up to the user doing the de-identification to insure that PHI is removed or cleaned according to the laws and practices in place at the time de-identification occurs. |
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Tag | Name | Action |
00080050 | AccessionNumber | hash |
00184000 | AcquisitionComments | keep |
00400555 | AcquisitionContextSeq | remove |
00080022 | AcquisitionDate | incrementdate |
0008002a | AcquisitionDatetime | incrementdate |
00181400 | AcquisitionDeviceProcessingDescription | keep |
00189424 | AcquisitionProtocolDescription | keep |
00080032 | AcquisitionTime | keep |
00404035 | ActualHumanPerformersSequence | remove |
001021b0 | AdditionalPatientHistory | keep |
00380010 | AdmissionID | remove |
00380020 | AdmittingDate | incrementdate |
00081084 | AdmittingDiagnosesCodeSeq | keep |
00081080 | AdmittingDiagnosesDescription | keep |
00380021 | AdmittingTime | keep |
00102110 | Allergies | keep |
40000010 | Arbitrary | remove |
0040a078 | AuthorObserverSequence | remove |
00130010 | BlockOwner | CTP |
00180015 | BodyPartExamined | BODYPART |
00101081 | BranchOfService | remove |
00280301 | BurnedInAnnotation | keep |
00181007 | CassetteID | keep |
00400280 | CommentsOnPPS | keep |
00209161 | ConcatenationUID | hashuid |
00403001 | ConfidentialityPatientData | remove |
00700086 | ContentCreatorsIdCodeSeq | remove |
00700084 | ContentCreatorsName | empty |
00080023 | ContentDate | incrementdate |
0040a730 | ContentSeq | remove |
00080033 | ContentTime | keep |
0008010d | ContextGroupExtensionCreatorUID | hashuid |
00180010 | ContrastBolusAgent | keep |
0018a003 | ContributionDescription | keep |
00102150 | CountryOfResidence | remove |
00089123 | CreatorVersionUID | hashuid |
00380300 | CurrentPatientLocation | remove |
00080025 | CurveDate | incrementdate |
Group | curves | remove |
00080035 | CurveTime | keep |
0040a07c | CustodialOrganizationSeq | remove |
fffcfffc | DataSetTrailingPadding | remove |
00181200 | DateofLastCalibration | incrementdate |
0018700c | DateofLastDetectorCalibration | incrementdate |
00181012 | DateOfSecondaryCapture | incrementdate |
00120063 | DeIdentificationMethod | {Per DICOM PS 3.15 AnnexE. Details in 0012,0064} |
00120064 | DeIdentificationMethodCodeSequence | 113100/113101/113105/113107/113108/113109/113111 |
00082111 | DerivationDescription | keep |
0018700a | DetectorID | keep |
00181000 | DeviceSerialNumber | keep |
00181002 | DeviceUID | keep |
fffafffa | DigitalSignaturesSeq | remove |
04000100 | DigitalSignatureUID | remove |
00209164 | DimensionOrganizationUID | hashuid |
00380040 | DischargeDiagnosisDescription | keep |
4008011a | DistributionAddress | remove |
40080119 | DistributionName | remove |
300a0013 | DoseReferenceUID | hashuid |
00102160 | EthnicGroup | keep |
00080058 | FailedSOPInstanceUIDList | hashuid |
0070031a | FiducialUID | hashuid |
00402017 | FillerOrderNumber | empty |
00209158 | FrameComments | keep |
00200052 | FrameOfReferenceUID | hashuid |
00181008 | GantryID | keep |
00181005 | GeneratorID | keep |
00700001 | GraphicAnnotationSequence | remove |
00404037 | HumanPerformersName | remove |
00404036 | HumanPerformersOrganization | remove |
00880200 | IconImageSequence | remove |
00084000 | IdentifyingComments | keep |
00204000 | ImageComments | keep |
00284000 | ImagePresentationComments | remove |
00402400 | ImagingServiceRequestComments | keep |
40080300 | Impressions | keep |
00080012 | InstanceCreationDate | incrementdate |
00080014 | InstanceCreatorUID | hashuid |
00080081 | InstitutionAddress | remove |
00081040 | InstitutionalDepartmentName | remove |
00080082 | InstitutionCodeSequence | remove |
00080080 | InstitutionName | remove |
00101050 | InsurancePlanIdentification | remove |
00401011 | IntendedRecipientsOfResultsIDSequence | remove |
40080111 | InterpretationApproverSequence | remove |
4008010c | InterpretationAuthor | remove |
40080115 | InterpretationDiagnosisDescription | keep |
40080202 | InterpretationIdIssuer | remove |
40080102 | InterpretationRecorder | remove |
4008010b | InterpretationText | keep |
4008010a | InterpretationTranscriber | remove |
00083010 | IrradiationEventUID | hashuid |
00380011 | IssuerOfAdmissionID | remove |
00100021 | IssuerOfPatientID | remove |
00380061 | IssuerOfServiceEpisodeId | remove |
00281214 | LargePaletteColorLUTUid | hashuid |
001021d0 | LastMenstrualDate | incrementdate |
00280303 | LongitudinalTemporalInformationModified | MODIFIED |
04000404 | MAC | remove |
00080070 | Manufacturer | keep |
00081090 | ManufacturerModelName | keep |
00102000 | MedicalAlerts | keep |
00101090 | MedicalRecordLocator | remove |
00101080 | MilitaryRank | remove |
04000550 | ModifiedAttributesSequence | remove |
00203406 | ModifiedImageDescription | remove |
00203401 | ModifyingDeviceID | remove |
00203404 | ModifyingDeviceManufacturer | remove |
00081060 | NameOfPhysicianReadingStudy | remove |
00401010 | NamesOfIntendedRecipientsOfResults | remove |
00102180 | Occupation | keep |
00081070 | OperatorName | remove |
00081072 | OperatorsIdentificationSeq | remove |
00402010 | OrderCallbackPhoneNumber | remove |
00402008 | OrderEnteredBy | remove |
00402009 | OrderEntererLocation | remove |
04000561 | OriginalAttributesSequence | remove |
00101000 | OtherPatientIDs | remove |
00101002 | OtherPatientIDsSeq | remove |
00101001 | OtherPatientNames | remove |
00080024 | OverlayDate | incrementdate |
Group | overlays | remove |
00080034 | OverlayTime | keep |
00281199 | PaletteColorLUTUID | hashuid |
0040a07a | ParticipantSequence | remove |
00101040 | PatientAddress | remove |
00101010 | PatientAge | keep |
00100030 | PatientBirthDate | empty |
00101005 | PatientBirthName | remove |
00100032 | PatientBirthTime | remove |
00104000 | PatientComments | keep |
00100020 | PatientID | Re-Mapped |
00120062 | PatientIdentityRemoved | YES |
00380400 | PatientInstitutionResidence | remove |
00100050 | PatientInsurancePlanCodeSeq | remove |
00101060 | PatientMotherBirthName | remove |
00100010 | PatientName | Re-Mapped |
00102154 | PatientPhoneNumbers | remove |
00100101 | PatientPrimaryLanguageCodeSeq | remove |
00100102 | PatientPrimaryLanguageModifierCodeSeq | remove |
001021f0 | PatientReligiousPreference | remove |
00100040 | PatientSex | keep |
00102203 | PatientSexNeutered | keep |
00101020 | PatientSize | keep |
00380500 | PatientState | keep |
00401004 | PatientTransportArrangements | remove |
00101030 | PatientWeight | keep |
00400243 | PerformedLocation | remove |
00400241 | PerformedStationAET | keep |
00404030 | PerformedStationGeoLocCodeSeq | keep |
00400242 | PerformedStationName | keep |
00404028 | PerformedStationNameCodeSeq | keep |
00081052 | PerformingPhysicianIdSeq | remove |
00081050 | PerformingPhysicianName | remove |
00400250 | PerformProcedureStepEndDate | incrementdate |
00401102 | PersonAddress | remove |
00401101 | PersonIdCodeSequence | remove |
0040a123 | PersonName | empty |
00401103 | PersonTelephoneNumbers | remove |
40080114 | PhysicianApprovingInterpretation | remove |
00081048 | PhysicianOfRecord | remove |
00081049 | PhysicianOfRecordIdSeq | remove |
00081062 | PhysicianReadingStudyIdSeq | remove |
00402016 | PlaceOrderNumberOfImagingServiceReq | empty |
00181004 | PlateID | keep |
00400254 | PPSDescription | keep |
00400253 | PPSID | remove |
00400244 | PPSStartDate | incrementdate |
00400245 | PPSStartTime | keep |
001021c0 | PregnancyStatus | keep |
00400012 | PreMedication | keep |
Group | privategroups | keep |
00131010 | ProjectName | always |
00181030 | ProtocolName | keep |
00540016 | Radiopharmaceutical Information Sequence | process |
00181078 | Radiopharmaceutical Start DateTime | incrementdate |
00181079 | Radiopharmaceutical Stop DateTime | incrementdate |
00402001 | ReasonForImagingServiceRequest | keep |
00321030 | ReasonforStudy | keep |
04000402 | RefDigitalSignatureSeq | remove |
30060024 | ReferencedFrameOfReferenceUID | hashuid |
00380004 | ReferencedPatientAliasSeq | remove |
00080092 | ReferringPhysicianAddress | remove |
00080090 | ReferringPhysicianName | empty |
00080094 | ReferringPhysicianPhoneNumbers | remove |
00080096 | ReferringPhysiciansIDSeq | remove |
00404023 | RefGenPurposeSchedProcStepTransUID | hashuid |
00081140 | RefImageSeq | remove |
00081120 | RefPatientSeq | remove |
00081111 | RefPPSSeq | remove |
00081150 | RefSOPClassUID | keep |
04000403 | RefSOPInstanceMACSeq | remove |
00081155 | RefSOPInstanceUID | hashuid |
00081110 | RefStudySeq | remove |
00102152 | RegionOfResidence | remove |
300600c2 | RelatedFrameOfReferenceUID | hashuid |
00400275 | RequestAttributesSeq | remove |
00321070 | RequestedContrastAgent | keep |
00401400 | RequestedProcedureComments | keep |
00321060 | RequestedProcedureDescription | keep |
00401001 | RequestedProcedureID | remove |
00401005 | RequestedProcedureLocation | remove |
00321032 | RequestingPhysician | remove |
00321033 | RequestingService | remove |
00102299 | ResponsibleOrganization | remove |
00102297 | ResponsiblePerson | remove |
40084000 | ResultComments | keep |
40080118 | ResultsDistributionListSeq | remove |
40080042 | ResultsIDIssuer | remove |
300e0008 | ReviewerName | remove |
00404034 | ScheduledHumanPerformersSeq | remove |
0038001e | ScheduledPatientInstitutionResidence | remove |
0040000b | ScheduledPerformingPhysicianIDSeq | remove |
00400006 | ScheduledPerformingPhysicianName | remove |
00400001 | ScheduledStationAET | keep |
00404027 | ScheduledStationGeographicLocCodeSeq | keep |
00400010 | ScheduledStationName | keep |
00404025 | ScheduledStationNameCodeSeq | keep |
00321020 | ScheduledStudyLocation | keep |
00321021 | ScheduledStudyLocationAET | keep |
00321000 | ScheduledStudyStartDate | incrementdate |
00080021 | SeriesDate | incrementdate |
0008103e | SeriesDescription | keep |
0020000e | SeriesInstanceUID | hashuid |
00080031 | SeriesTime | keep |
00380062 | ServiceEpisodeDescription | keep |
00380060 | ServiceEpisodeID | remove |
00131013 | SiteID | SITEID |
00131012 | SiteName | SITENAME |
001021a0 | SmokingStatus | keep |
00181020 | SoftwareVersion | keep |
00080018 | SOPInstanceUID | hashuid |
00082112 | SourceImageSeq | remove |
00380050 | SpecialNeeds | keep |
00400007 | SPSDescription | keep |
00400004 | SPSEndDate | incrementdate |
00400005 | SPSEndTime | keep |
00400011 | SPSLocation | keep |
00400002 | SPSStartDate | incrementdate |
00400003 | SPSStartTime | keep |
00081010 | StationName | remove |
00880140 | StorageMediaFilesetUID | hashuid |
30060008 | StructureSetDate | incrementdate |
00321040 | StudyArrivalDate | incrementdate |
00324000 | StudyComments | keep |
00321050 | StudyCompletionDate | incrementdate |
00080020 | StudyDate | incrementdate |
00081030 | StudyDescription | keep |
00200010 | StudyID | empty |
00320012 | StudyIDIssuer | remove |
0020000d | StudyInstanceUID | hashuid |
00080030 | StudyTime | keep |
00200200 | SynchronizationFrameOfReferenceUID | hashuid |
0040db0d | TemplateExtensionCreatorUID | hashuid |
0040db0c | TemplateExtensionOrganizationUID | hashuid |
40004000 | TextComments | remove |
20300020 | TextString | remove |
00080201 | TimezoneOffsetFromUTC | remove |
00880910 | TopicAuthor | remove |
00880912 | TopicKeyWords | remove |
00880906 | TopicSubject | remove |
00880904 | TopicTitle | remove |
00081195 | TransactionUID | hashuid |
00131011 | TrialName | PROJECTNAME |
0040a124 | UID | hashuid |
Group | unspecifiedelements | keep |
0040a088 | VerifyingObserverIdentificationCodeSeq | remove |
0040a075 | VerifyingObserverName | empty |
0040a073 | VerifyingObserverSequence | remove |
0040a027 | VerifyingOrganization | remove |
00384000 | VisitComments | keep |
...
More Details regarding TCIA de-identification may be found at the following links: De-Identification Rules.