Constructing a 3D model from MRI or CT scan

Image-based modellingManaal Fatima309185696Image-based modellingCreate 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.jpgTypes of scansCT: Computed tomographyUses x-rays

MRI: Magnetic resonance imagingTargets hydrogen molecules

CT vs. MRI scans

Image source: Vidalink LLC (2007), from http://www.ct-scan-info.com/mri.html CT MRIDICOM data formatDigital Imaging and Communications in Medicine

Data set of images containing each slice

Different planes:1. Coronal2. Sagittal3. Transverse

Slices in different planes

Source:Science Photo LibraryAvailable softwareMimicsAmiraRhino3D

ScanIP (from Simpleware)Import DICOM data

SegmentationIdentify artefact boundariesAutomatically perform on all slicesAutomatically segments all planes

Segmentation cont..

Generate the model

Further post-processingPost-modellingMeshingCreate an assemblyExport for FEA

Questions?