YOU MUST PUT A NEW UID INTO THE CONFIGURATION FILE TO MAKE THE PROCESS VALID. Howard has a nice article on how to acquire your own, which he discusses on this page. There are several different UID fields that need to be changed ,and you need to have your own UID (or have OsiriX generate one). This loses the temporal relationship between studies, which is valuable information in many cases. Other software may just reset to a generic date for all studies (e.g. So anyone reviewing the case will see that the studies were performed one day apart, but the dates themselves are anonymized. For example, if a patient has two radiographs that show the evolution of pulmonary edema on and , the hash may convert the dates to something like 12/15/04 and 12/16/04. This is a great feature for cases with multiple different studies, because it maintains a temporal relationship between each study. This script will scramble the date, but maintain the timeline of different studies for a patient. The study date fields are configured with a script. This is a little far fetched as it requires access to the hospital network, but we’re going to be compliant and change these anyway. Anonymization of Study DatesĪccording to the literature I cited in the previous post, study dates are technically a HIPAA sensitive field, as anyone with access to the network can retrospectively search by date and find the patient information.

For my custom configuration file, the only thing you need to update is the UID. This is useful in two main locations – the study date information, and the UID values, as discussed below. One of the nice features of the DicomAnonymizer is the utility of a Hash to scramble the DICOM header data.

According to this scheme, the following DICOM fields need to be preserved: The default DicomAnonymizer script needs some tweaking in order to follow the conventions of Howard’s OsiriX TF naming scheme. The DicomAnonymizer uses a script file that contains all of the instructions for how the anonymization should proceed.

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