redaction_checker.py

"""
Loads a DICOM file, checks all sensitive fields, and prints any field that was NOT properly redacted.

Author: tdiprima
Version: 1.0
License: MIT
"""

__author__ = 'tdiprima'
__version__ = '1.0'
__license__ = 'MIT'

import pydicom


def check_redacted_dicom(dicom_file):
    """
    Checks if a DICOM file contains any fields that should be redacted but still have values.
    Prints any non-redacted field names along with their values.

    Parameters:
        dicom_file (str): Path to the DICOM file.
    """
    dicom_data = pydicom.dcmread(dicom_file)

    # List of sensitive fields that should be redacted
    sensitive_tags = ["PatientName", "PatientID", "PatientBirthDate", "PatientSex", "PatientAddress",
        "ReferringPhysicianName", "StudyDescription", "SeriesDescription", "AccessionNumber", "OtherPatientIDs",
        "OtherPatientNames", "InstitutionName", "InstitutionAddress", "InstitutionalDepartmentName",
        "PerformingPhysicianName", "ReferringPhysicianName", "PhysiciansOfRecord",
        "OperatorsName", "RequestingPhysician", "NameOfPhysiciansReadingStudy",
        "ConsultingPhysicianName", "ResponsiblePerson", "RequestingService", "AdmittingDiagnosesDescription",
        "MedicalAlerts", "Allergies", "PatientInsurancePlanCodeSequence", "DerivationDescription",
        "PerformedProcedureStepDescription", "ScheduledPerformingPhysicianName", "ResponsibleOrganization", "StudyDate",
        "SeriesDate", "AcquisitionDate", "ContentDate", "StudyTime", "SeriesTime", "AcquisitionTime", "ContentTime"]

    print("\n🔍 **Checking for unredacted DICOM fields...**\n")

    unredacted_fields = []
    for tag in sensitive_tags:
        if tag in dicom_data:
            value = str(dicom_data[tag].value).strip()  # Convert value to string and remove extra spaces
            if value and value != "REMOVED":  # Check if the value is not blank and not "REMOVED"
                unredacted_fields.append((tag, value))

    # Print results
    if unredacted_fields:
        print("🚨 WARNING: Some fields are NOT redacted! 🚨\n")
        for tag, value in unredacted_fields:
            print(f"⚠️  {tag}: {value}")
    else:
        print("✅ All sensitive fields are properly redacted!")


# Example usage
dicom_file = "deidentified/dicom1.dcm"
check_redacted_dicom(dicom_file)