Computer Aided Diagnosis and Rheumatoid Arthritis
RAQuantify is an innovative attempt to apply state-of-the-art computer vision algorithms to the automatic quantification of rheumatoid arthritis (e.g. automatic joint space measurement). It is aimed at two main fields:

  • Clinical research on rheumathoid arthritis and multi center studies
  • Rheumatoid arthritis therapy monitoring
RAquantify is embedded in a Web service, and therefore allows shared use by several users in different geographic locations. It is under active development and processes DICOM data with minimal user input, with a current technical success rate of 93%.

If you are interested in more detailed information, please refer to Peloschek P, Langs G et al. (An Automatic Model-based System for Joint Space Measurements on Hand Radiographs: Initial Experience. Radiology. 2007)

In contrast to semi-automated approaches RAquantify performs the analysis fully autonomous. This has several advantages:

  • It allows for the batch processing of large amounts of DICOM files
  • It decreases the chance of reader variability, which is particularly relevant during multi center studies
RAquantify is developed as a part of the AAMIR project, at the Universities of Technology Graz and Vienna, and the Vienna Medical University.

In March we will participate on this years' ECR 08 imagine exhibit.

Contact: Georg Langs, Philipp Peloschek

Erosion enhanced viewing: spotting erosions caused by rheumatoid arthritis aided by the computer
JSW measurement
Automatic joint space width measurement
Modular interface to image analysis algorithms