François Chung, Ph.D.

Tag: gimias

VPH 2012 - Conference

VPH 2012 – Conference proceeding

Publication

Yves Martelli, Tristan Whitmarsh, Ludovic Humbert, François Chung, Luis M. del Río Barquero, Silvana Di Gregorio, Luigi Carotenuto, Alejandro F. Frangi; A software framework for 3D reconstruction and fracture risk assessment of the proximal femur from dual-energy x-ray absorptiometry; VPH 2012: Virtual Physiological Human - Integrative approaches to computational biomedicine, London, 2012.

Abstract

In clinical routine, osteoporosis diagnosis is performed using the areal Bone Mineral Density (aBMD) computed from two-dimensional Dual-energy X-ray Absorptiometry (DXA) images. This measurement of the "projected density" gives a global marker of osteoporosis but is insufficient for an accurate quantification of non-uniform mineral deficiencies. Quantitative Computed Tomography (QCT) is one possible modality for retrieving shape and bone mineral density measurements in 3D, leading to a better characterization of the local bone quality and the fracture risk. However, due to high financial costs and a high radiation dose for the patient, this modality is rarely used in clinical routine for the follow-up of osteoporosis. In this work, we show how state-of-the-art techniques and methods for fracture risk assessment of the proximal femur using 3D analysis from single-view DXA images were brought to the research and clinical end-user, through the use of an existing open source framework for fast prototyping of clinical applications.

References

Publication

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GIMIAS framework (UPF project)

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VPH – Virtual Physiological Human

GIMIAS framework

GIMIAS framework

UPF project @Barcelona, Spain (2012). GIMIAS (Graphical Interface for Medical Image Analysis and Simulation) is a workflow-oriented environment for solving biomedical image computing and simulation problems, which is extensible through the development of problem-specific plugins. In addition, GIMIAS provides an open source framework for the development of research and clinical software prototypes while allowing business-friendly technology transfer.

GIMIAS is particularly tailored to integrate tools from medical imaging, computational modeling, numerical methods and computer graphics to provide scientific developers and researchers with a software framework allowing them to build a wide variety of tools. The aim of GIMIAS is to combine tools from different areas of knowledge, thus providing a framework for multi-disciplinary research, clinical study and commercial product development.

Some of the main features of GIMIAS include:

  • multi-modal image processing;
  • personalized model creation;
  • numerical simulation;
  • visualization of simulation results.

As a Scientific Software Engineer within the GIMIAS team, my work consists in developing, optimizing, testing and installing software solutions for orthopedic applications. More precisely, I am in charge of the software development for the EU FP7-funded MySpine project and for both Catalonia ACC1Ó-funded 3D-FemOs and VERTEX projects. MySpine aims to create a clinical predictive tool to provide the clinicians with patient-specific biomechanical analysis. 3D-FemOs and VERTEX aim to improve both the diagnosis of osteoporosis and the prevention of hip (3D-FemOs) and vertebral (VERTEX) fractures.

References

Related article

VPH 2012 (conference proceeding)

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GIMIAS – Graphical Interface for Medical Image Analysis and Simulation
MySpine