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Related Concept Videos

Virtual Work01:20

Virtual Work

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The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
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Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

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The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
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Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

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Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
Next,...
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Photoluminescence: Applications01:14

Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Radiation: Applications01:17

Radiation: Applications

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The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
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Related Experiment Video

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Two-photon Calcium Imaging in Mice Navigating a Virtual Reality Environment
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Applications of Virtual and Augmented Reality in Biomedical Imaging.

Santiago González Izard1, Juan A Juanes Méndez2, Pablo Ruisoto Palomera2

  • 1ARSOFT, Calle del Duero 12, Science Park, 37185, Villamayor, Spain. santiago@arsoft-company.com.

Journal of Medical Systems
|March 16, 2019
PubMed
Summary

This study introduces enhanced radiological image visualization using Virtual Reality (VR) and Augmented Reality (AR) for improved surgical planning and monitoring. It transitions from 2D images to interactive 3D models, leveraging AI for automated segmentation.

Keywords:
3D visualizationAugmented realityDICOMImage segmentationRadiological imagesVirtual reality

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Area of Science:

  • Medical Imaging
  • Computer-Aided Surgery
  • Virtual and Augmented Reality

Background:

  • The increasing integration of Virtual and Augmented Reality (VR/AR) in medicine.
  • The critical role of radiological images in surgical diagnosis and planning.
  • Limitations of traditional 2D radiological images in surgical contexts.

Purpose of the Study:

  • To present a novel approach for enhanced radiological image visualization using VR and AR.
  • To improve surgical planning and intraoperative monitoring through advanced visualization techniques.
  • To explore the potential of 3D model manipulation for surgical decision-making.

Main Methods:

  • Development of an application for visualizing and manipulating radiological images in 3D using VR and AR.
  • Investigation of automated segmentation techniques for radiological images.
  • Application of computer vision and Artificial Intelligence (AI) for image segmentation.

Main Results:

  • Demonstration of a system that transforms 2D radiological images into interactive 3D models.
  • Successful visualization and manipulation of 3D radiological models in VR and AR environments.
  • Proposed AI-driven methods for automating the segmentation of radiological images.

Conclusions:

  • VR and AR offer a significant advancement over traditional 2D radiological images for surgical applications.
  • The developed system enhances the visualization and manipulation of radiological data for improved surgical planning.
  • AI and computer vision hold promise for automating key steps in preparing radiological data for VR/AR surgical applications.