NA-MIC Project Weeks

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DICOMweb Projects

Key Investigators

• Michael Kelm (Siemens Healthineers)
• Steve Pieper (Isomics/NAMIC/OHIF)
• Erik Ziegler (OHIF)
• Marco Nolden (DKFZ/MITK)
• Jonas Scherer (DKFZ/MITK)
• Tina Kapur (BWH)

Participating Remotely

• Andrey Fedorov (BWH)
• Andreas Fieselmann (Siemens Healthineers)

Project Description

OHIFViewer can currently serialize/deserialize to DICOM SR for length measurements with unsecured dcm4chee back end.

Objective

• Explore DICOMweb integration with various infrastructures and programming environments
  • OHIF
  • teamplay
  • CTK / MITK / Slicer
• Review existing implementations
  • dcm4chee
  • orthanc
  • teamplay
• Review enabling software / tools
  • dcmjs
  • cornerstone, cornerstoneTools

Approach and Plan

• Review current implementations
• Review clinical applications and supportable workflows
  • General annotation (segmentation and measurements)
  • Orthopedic workflows
• Try some experimental connections with real data
  • QIDO/WADO of instances
  • STOW of derived instances
• Work on creating correct derived objects
  • SEG
  • SR
  • PR
  • SC

Here’s an example endpoint for testing:

curl quantome.org:8080/dcm4chee-arc/aets/DCM4CHEE/rs/patients

Progress and Next Steps

• Learned a lot about web security implementations, single sign on, proxies, etc
• Working DICOM archive with access managed by Keycloak, a standalone identity and access management tool
• Updated docker compose with archive and viewer
• Able to launch OHIF Viewer on selected studies from secured Siemens teamplay login
• Began work on Kubernetes deployment structure based on docker-compose setup
• Began work on DICOM QIDO support for ctkDICOMQuery. Query building works, feeding results to ctkDICOMDatabase is work in progress

Illustrations

Background and References

• DICOMweb official site
• OHIF
• CTK
• Example docker compose for OHIF + dcm4chee
• dcm4chee REST api endpoints
• Example OHIF installation with dcm4chee back end

Notes

• STOW of SR from OHIF in JavaScript

• STOW request bash script “stow.sh”

#/bin/bash

if [ "$#" -ne 2 ]; then
    echo "Usage: stow.sh <endpointURL> <instance>"
    exit -1
fi

echo $1 $2

endpointURL=$1
instance=$2

temp=$(mktemp)

echo Using temp dir $temp
echo -ne "\r\n--EOF\r\nContent-Type: application/dicom\r\n\r\n" > $temp
cat $instance >> $temp
echo -ne "\r\n--EOF--" >> $temp

curl -X POST -H "Content-Type: multipart/related; type=application/dicom; boundary=EOF" $endpointURL --data-binary @$temp

For example use this script like this from a directory full of DICOM files:

find . -exec stow.sh http://quantome.org:8080/dcm4chee-arc/aets/DCM4CHEE/rs/studies \{\} \;