Image-based modelling

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Presentation transcript:

Image-based modelling Manaal Fatima 309185696

Image-based modelling Create 3D model from MRI or CT scans Ability to export model for finite element analysis Extensive applications in biomechanical research Image source: http://www.ablesw.com/3d-doctor/headcut.jpg

Types of scans CT: Computed tomography Uses x-rays MRI: Magnetic resonance imaging Targets hydrogen molecules

CT vs. MRI scans CT MRI Image source: Vidalink LLC (2007), from http://www.ct-scan-info.com/mri.html

DICOM data format Digital Imaging and Communications in Medicine Data set of images containing each slice Different planes: 1. Coronal 2. Sagittal 3. Transverse

Slices in different planes Source: Science Photo Library

Available software Mimics Amira Rhino3D ScanIP (from Simpleware)

Import DICOM data

Segmentation Identify artefact boundaries Automatically perform on all slices Automatically segments all planes

Segmentation cont..

Generate the model Further post-processing

Post-modelling Meshing Create an assembly Export for FEA

Questions?

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