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Visualization of Sliding and Deformation of Orbital Fat During Eye Rotation
- Source :
- Translational Vision Science & Technology, Translational Vision Science & Technology, 5(4):9. Association for Research in Vision and Ophthalmology Inc., Translational Vision Science & Technology, 5(4)
- Publication Year :
- 2016
-
Abstract
- Purpose: Little is known about the way orbital fat slides and/or deforms during eye movements. We compared two deformation algorithms from a sequence of MRI volumes to visualize this complex behavior. Methods: Time-dependent deformation data were derived from motion-MRI volumes using Lucas and Kanade Optical Flow (LK3D) and nonrigid registration (B-splines) deformation algorithms. We compared how these two algorithms performed regarding sliding and deformation in three critical areas: the sclera-fat interface, how the optic nerve moves through the fat, and how the fat is squeezed out under the tendon of a relaxing rectus muscle. The efficacy was validated using identified tissue markers such as the lens and blood vessels in the fat. Results: Fat immediately behind the eye followed eye rotation by approximately one-half. This was best visualized using the B-splines technique as it showed less ripping of tissue and less distortion. Orbital fat flowed around the optic nerve during eye rotation. In this case, LK3D provided better visualization as it allowed orbital fat tissue to split. The resolution was insufficient to visualize fat being squeezed out between tendon and sclera. Conclusion: B-splines performs better in tracking structures such as the lens, while LK3D allows fat tissue to split as should happen as the optic nerve slides through the fat. Orbital fat follows eye rotation by one-half and flows around the optic nerve during eye rotation. Translational Relevance: Visualizing orbital fat deformation and sliding offers the opportunity to accurately locate a region of cicatrization and permit an individualized surgical plan.
- Subjects :
- genetic structures
soft tissue deformation
Biomedical Engineering
Optical flow
Soft tissue deformation
Deformation (meteorology)
Rotation
optical flow
03 medical and health sciences
0302 clinical medicine
stomatognathic system
Orbital fat
Computer vision
Physics
business.industry
technology, industry, and agriculture
Eye movement
nonrigid registration
Articles
eye diseases
Visualization
Ophthalmology
eye movements
Computer Science::Graphics
030221 ophthalmology & optometry
orbital fat
Artificial intelligence
sense organs
business
030217 neurology & neurosurgery
Subjects
Details
- Language :
- English
- ISSN :
- 21642591
- Database :
- OpenAIRE
- Journal :
- Translational Vision Science & Technology, Translational Vision Science & Technology, 5(4):9. Association for Research in Vision and Ophthalmology Inc., Translational Vision Science & Technology, 5(4)
- Accession number :
- edsair.doi.dedup.....43bb9826013449466a0e2be3528ce955