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Real-time synthesis of image slices in deformed tissue from nominal volume images.
- Source :
-
Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention [Med Image Comput Comput Assist Interv] 2007; Vol. 10 (Pt 1), pp. 401-8. - Publication Year :
- 2007
-
Abstract
- This paper presents a fast image synthesis procedure for elastic volumes under deformation. Given the node displacements of a mesh and the 3D image voxel data of an undeformed volume, the method maps the image plane pixels to be synthesized from the deformed configuration back to the nominal pre-deformed configuration, where the pixel intensities are obtained easily through interpolation in the regular-grid structure of the voxel volume. For smooth interpolation, this mapping requires the identification of the mesh element enclosing each image pixel. To accelerate this point location procedure, a fast method of marking the image pixels is employed by finding the intersection of the mesh and the image, and marking this intersection on the image pixels using Bresenham's line drawing algorithm. A deformable tissue phantom was constructed, it was modeled using the finite element method, and its 3D ultrasound volume was acquired in its undeformed state. Actual B-mode images of the phantom under deformation by the ultrasound probe were then compared with the corresponding synthesized images simulated for the same deformations. Results show that realistic images can be synthesized in real-time using the proposed technique.
- Subjects :
- Algorithms
Artificial Intelligence
Computer Simulation
Computer Systems
Humans
Models, Biological
Models, Statistical
Phantoms, Imaging
Reproducibility of Results
Sensitivity and Specificity
Ultrasonography instrumentation
Anatomy, Cross-Sectional methods
Image Enhancement methods
Image Interpretation, Computer-Assisted methods
Imaging, Three-Dimensional methods
Pattern Recognition, Automated methods
Subtraction Technique
Ultrasonography methods
Subjects
Details
- Language :
- English
- Volume :
- 10
- Issue :
- Pt 1
- Database :
- MEDLINE
- Journal :
- Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
- Publication Type :
- Academic Journal
- Accession number :
- 18051084
- Full Text :
- https://doi.org/10.1007/978-3-540-75757-3_49