Same orthanc study id after Institution Name tag modification?

General
1

Greetings,

I’m using the following curl command to modify the Institution Name tag of a study

curl -X POST “http://192.168.1.100:8042/studies/654d2f20-47002ec8-e723b45d-7664cc1e-22098df3/modify”
-H “Content-Type: application/json”
-u admin:orthanc123
-d ‘{
“Replace”: {
“InstitutionName”: “Veterinary Clinic ASSIGNED”
},
“Keep”: [
“StudyInstanceUID”,
“SeriesInstanceUID”,
“SOPInstanceUID”
],
“Force”: true,
“Asynchronous”: false
}’

The command executes fine with the following response:

{
“Description”: “REST API”,
“FailedInstancesCount”: 0,
“ID”: “654d2f20-47002ec8-e723b45d-7664cc1e-22098df3”,
“InstancesCount”: 1,
“IsAnonymization”: false,
“ParentResources”: [
“654d2f20-47002ec8-e723b45d-7664cc1e-22098df3”
],
“Path”: “/studies/654d2f20-47002ec8-e723b45d-7664cc1e-22098df3”,
“PatientID”: “1b684b83-f4c9d050-d02fc6ef-b497f87a-67d1c1b2”,
“Type”: “Study”
}

I read in the documentation that when a study is modified Orthanc keeps the original and generates a new study with the changes with a new Orthanc ID but In this case it seems the changes are being made to the original study ie the Orthanc id is the same ie 654d2f20-47002ec8-e723b45d-7664cc1e-22098df3 and there is still only one study of the patient in Orthanc(with the modified InstitutionName)

Am I missing something?

2

Hi,

Yes, this: Orthanc identifiers — Orthanc Book documentation

3

I read the article you posted but I’m still confused

4

Since you keep the same DICOM IDs, the Orthanc ID does not change.

1 Like
6

So basically if we keep the same DICOM IDs the changes are in essence made to the original study…correct?

7

Hello,

Check out the OverwriteInstances configuration option of Orthanc and make some tests to figure out by yourself.

Regards,
Sébastien-