Build an online consultancy PACS server?

oshouip · December 8, 2024, 10:19pm

Hi every one
I am trying to build a small community between my and my fellow cardiologists to share opnion regarding cases.
SO I have my own VPS with Ubuntu and orthanc up and ruining!
I have two main issues:
first:
I cannot connect different modalities as all of these modalities (ECHO machines) are on local netwrok how to setup their IP to be visible to an online Orthanc version? is there is any work around?

second:
Is there is any pluging or online webviewer that support play and pause to see the vedio runing of either ECHO or cath files?

Thanks in advance

bcrickboom · December 9, 2024, 8:15am

Hello,

For the public server, you can get some inspiration here:

For the local modalities, you probably should set up some local Orthanc to act as proxies between the local DICOM components (not secure) and the cloud server.
So that would be something like:

DICOM modality —DICOM—> local Orthanc —DICOMweb—> cloud Orthanc

I hope this helps,

oshouip · December 10, 2024, 4:52am

Thank you very much for your response, and sorry for my weak technical background such a cardiologist here!
How to adjust local Orthanc to act as proxies?
If there is any tutorial?

bcrickboom · December 10, 2024, 8:22am

Hello,

Here is the tool to use:

github.com

orthanc-team/python-orthanc-tools/blob/main/orthanc_tools/orthanc_forwarder.py

import argparse
import datetime
import logging
import time
import os
import threading
import queue
from strenum import StrEnum
from dataclasses import dataclass, field
from typing import List, Optional, Tuple

from orthanc_api_client import OrthancApiClient, Study, Series, JobStatus, ResourceNotFound, InstancesSet, ResourceType, exceptions
from .orthanc_monitor import OrthancMonitor, ChangeType

logger = logging.getLogger(__name__)

class ForwarderMode(StrEnum):
    DICOM = 'dicom'             # use DICOM
    DICOM_SERIES_BY_SERIES = 'dicom-series-by-series'             # use DICOM but create a new association for each series
    DICOM_WEB = 'dicom-web'     # use DicomWEB

This file has been truncated. show original

The details regarding the right way to deploy depends on the context…

benjamin.golinvaux · December 10, 2024, 1:44pm

Hello,

The general solution would involve, in your case:

your Orthanc running locally in your premises
- If you do not have one, you will to setup a local Orthanc that will receive the DICOM from your local modalities. It can be installed on a Windows PC, or you can use a VM, a Docker container
the remote Orthanc in the cloud
A third part, that is a Python script that is also running locally, on the same network (ideally, same machine) as your local Orthanc
- This script will watch the local Orthanc and every time a new instance is stored, it will be forwarded, through DICOMWeb, to the cloud Orthanc.

This script should be rather simple to write : it’s a call to the function that Benoît highlighted above, where you need to supply it with the information required to:

read from the local Orthanc (IP address, user/password, HTTP port)
write to the cloud Orhanc (same: IP+port and credentials) using TLS (https)

It should be as simple as to launch these few lines of Python and let the script run· (@bcrickboom please correct me if I am talking nonsense)

Once you have validated that it works, you should package this script properly, for instance in a container , so that it runs all the time, can restart automatically if it fails / in case of reboot, etc.

It’s more of a configuration task than a coding task, but there are a few moving parts. If you want to give it a go, we can try to help!

oshouip · December 11, 2024, 5:32am

I would really appreciate your help
Tell me how we can proceed?
My situation now is three local sites with Orthanc on windows
and one cloud VPs on Hostiger with ubuntu and Orthanc installed

benjamin.golinvaux · December 11, 2024, 7:32am

Hello

I have written a Python script that will perform the forwarding from two source Orhancs to a remote DICOMweb Orthanc, as well as the installation procedure. It should work on any OS, but the script and installation instructions have been tested on Windows.

Please let us know if you have questions.

HTH

benjamin.golinvaux · December 11, 2024, 8:22am

You will also obviously have to adapt the script to deal with three source servers instead of two! Modifying the SOURCE_CONFIGS list should be enough.

oshouip · December 20, 2024, 11:09pm

Thank you very much for your help.
I am trying to simplifiy this for me as I am not technical!
Can I have a local orthanc server on my sites and any dicom viewer ex Radiant, then to connect radiant to the cloud Orthanc.
And doctor choose the study he wants to share through the DICOM viewer then upload it to the cloud Orthanc?

My main concern is that the local sites have no static IP address. How can I solve this?
Hoe to connect to cloud Orthanc from local site with no static IP?!

oshouip · December 27, 2024, 5:21pm

Any tutorial to setup a client with no static IP?

oshouip · December 27, 2024, 5:53pm

I think, if connected my local DICOM viewer to the cloud Orthanc may help to select the required study to be uploaded and not upload all studies