Challenges in Surgical Simulators Muhammad Muddassir Malik Muhammad Adil Usman SEECS, NUST,...
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Transcript of Challenges in Surgical Simulators Muhammad Muddassir Malik Muhammad Adil Usman SEECS, NUST,...
![Page 1: Challenges in Surgical Simulators Muhammad Muddassir Malik Muhammad Adil Usman SEECS, NUST, Islamabad School of Electrical Engineering & Computer Science,](https://reader036.fdocuments.in/reader036/viewer/2022062304/56649cf55503460f949c4330/html5/thumbnails/1.jpg)
Muhammad Muddassir Malik
Challenges in Surgical Simulators
Muhammad Muddassir MalikMuhammad Adil Usman
SEECS, NUST, Islamabad
School of Electrical Engineering & Computer Science, National University of Sciences & Technology, Pakistan1
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Muhammad Muddassir Malik 2
Survey on Surgical Simulators
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Muhammad Muddassir Malik 3
Survey on Surgical Simulators
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![Page 4: Challenges in Surgical Simulators Muhammad Muddassir Malik Muhammad Adil Usman SEECS, NUST, Islamabad School of Electrical Engineering & Computer Science,](https://reader036.fdocuments.in/reader036/viewer/2022062304/56649cf55503460f949c4330/html5/thumbnails/4.jpg)
Muhammad Muddassir Malik 4
System Components• Dataset• Mechanical Object• Tissue Modeling and Characterization• Illumination Mechanism• Collision Detection• Teaching Resources• Assessment through metrics and feedback• Performance Monitoring• Video
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Muhammad Muddassir Malik 5
Dataset• Geometric (derived from a scan?)– Triangular– Tetrahedral
• Volumetric (CT and MRI) (video)• Multimodal• Biomechanical
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Muhammad Muddassir Malik 6
Mechanical Object• Position Tracking (multi degree freedom)• Feedback– Visual – Hepatic• Force• Tactile
• Bi-directional Communications• To Ensure Correct Frame rate
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Muhammad Muddassir Malik 7
Tissue Modeling and Characterization
• Biomechanical properties• Physics• Stress-strain Relationship *• Topological Changes with wear and tear
(viscoelastic)• Inhomogeneous and Direction dependant
Tissue Behavior*• Fluid and movement (video)
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Muhammad Muddassir Malik 8
Illumination Mechanism• Global Light and Spot Light• Shadows• Depth Perception
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Muhammad Muddassir Malik 9
Collision Detection• Two stage collision detection (Boundary, Loci)• Collision Types:– Bounding Spheres– Axis-Aligned Bounding Boxes– Oriented (along Eigen Vector) Bounding Box
• Hardware Acceleration for Loci calculation
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Muhammad Muddassir Malik 10
Teaching Resources and Assessment
• Implementing Laparoscopic Training Manual and specific scenarios
• Cues, Feedback and comparisons• Assessment through metrics and qualitative
feedback– Errors– Movement– Time– Forces
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Muhammad Muddassir Malik 11
Performance• Depends on Implementation Platform• Study of Hardware and Software resources• Dry Run for Efficiency
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Muhammad Muddassir Malik 12
Discussion
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Muhammad Muddassir Malik 13
Four Modules• Simulation Engine– Based on Simulation Open Framework Architecture– Modeling and Simulation
• Basic Training Module– Fundamentals of Laparoscopic Surgery Curriculum for Surgeon
Training• Advanced Training Module– Simulation of complex laparoscopic procedures– Videos provided by Holy Family Hospital of different scenarios of
laparoscopic surgery• Evaluation Module– Evaluation of surgeons on the basis of simulator training
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Muhammad Muddassir Malik 14
The short comings in General• Dataset• Haptic Feedback• Stress-strain Relationship• Topological Changes with wear and tear
(viscoelastic)• Inhomogeneous Tissue behaviour• Shadows• Depth Perception• Simulation of Complex procedures
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Muhammad Muddassir Malik 15
Major Undecided Issues• Multimodal or Tetrahedral Dataset– Create or Acquire
• Laparoscopic Arms to use: No open source communication protocol available
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