Elements of virtual temporal bone surgery: Manipulandum format may be more important to surgeons than haptic device force capabilities

Unger, Bertram; Sepehri, Nariman; Rampersad, Vivek; Pisa, Justyn; Gousseau, Michael; Hochman, Jordan B.

doi:10.1002/lio2.120

Cited by 6 publications

(4 citation statements)

References 14 publications

(22 reference statements)

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“…Tests show that, for each simulated acoustic characteristic, HD2 improvements are favored ( p ≤ 0.0004). The high cost of this research is not conducive to popularization [ 4 ]. George Jr proposed that backside culling is a preprocessing technology for computer graphics that can speed up the rendering of polyhedrons and showed how to modify this technology to reduce collision detection in physics-based simulation and animation systems [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Study on Collision Detection and Force Feedback Algorithm in Virtual Surgery

Luo

2021

Journal of Healthcare Engineering

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The development of virtual reality technology is expected to solve traditional surgical training. The lack of methods has brought revolutionary advances in technology. The virtual surgery system based on collision detection and force feedback can enable the operator to have stronger interaction, which is an exploration of the feature of touch in virtual reality technology. Reality is an important indicator of the virtual surgical system. This article improves the realism of the system from the visual and tactile senses and uses the surrounding ball collision detection and force feedback algorithms to build a realistic surgical platform. In the virtual surgery training system, the introduction of force feedback greatly improves the sense of presence during virtual surgery interaction. The operator can feel the softness and hardness of different tissues and organs through the force feedback device. Virtual reality is an interdisciplinary comprehensive technology that has been widely used in military, film, medical, and gaming fields. Virtual reality can simulate the objective world and display it visually, making people feel immersive. Virtual surgery provides surgeons with a recyclable surgical practice platform and can help doctors perform preoperative rehearsals and predict the results of surgery. The design of collision detection and force feedback algorithms is a prerequisite to ensure the immersion and transparency of the virtual surgical training system. This article mainly introduces the collision detection and force feedback algorithm research in virtual surgery, with the intention of providing some ideas and directions for the development of virtual surgery. This paper proposes two collision detection algorithms, space decomposition method and hierarchical bounding box method, and three force feedback algorithms including spring mass point algorithm, Runge–Kutta method, and Euler method to construct virtual surgery collision detection and force feedback. Experiment with the Overall System Architecture. This paper proves through experimental results that the average collision detection time after the application of the improved collision detection and force feedback algorithm in the virtual surgery system is more than 80.7% less than the traditional method, which greatly improves the detection speed.

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Section: Introductionmentioning

confidence: 99%

Study on Collision Detection and Force Feedback Algorithm in Virtual Surgery

Luo

2021

Journal of Healthcare Engineering

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“…Issues in fidelity have still not been adequately resolved for simulations other than cadaveric temporal bone to be widely used in clinical training . The realism of VR simulators is still suboptimal despite advances in haptic feedback, and existing haptic simulations are unable to realistically reproduce the vibration and contact forces experienced during surgery .…”

Section: Discussion and Future Directionsmentioning

confidence: 99%

A review of simulation applications in temporal bone surgery

Kashikar

Kerwin

Moberly

et al. 2019

Laryngoscope Investig Oto

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Background Temporal bone surgery is a technically challenging and high‐risk procedure in an anatomically complex area. Safe temporal bone surgery emphasizes a consummate anatomic understanding and technique development that requires the guidance of an experienced otologic surgeon and years of practice. Temporal bone simulation can augment otologic surgical training and enable rehearsal of surgical procedures. Objectives The purpose of this article is to provide an updated review of temporal bone simulation platforms and their uses. Data Sources PubMed literature search. Search terms included temporal bone, temporal bone simulation, virtual reality (VR), and presurgical planning and rehearsal. Discussion Various simulation platforms such as cadaveric bone, three‐dimensional (3D) printed models, and VR simulation have been used for temporal bone surgery training. However, each simulation method has its drawbacks. There is a need to improve upon current simulation platforms to enhance surgical training and skills assessment, as well as a need to explore other clinically significant applications of simulation, such as preoperative planning and rehearsal, in otologic surgery. Conclusions There is no replacement for actual surgical experience, but high‐fidelity temporal bone models such as those produced with 3D printing and computer simulation have emerged as promising tools in otolaryngologic surgery. Improvements in the fidelity of both 3D printed and VR simulators as well as integration of a standardized assessment format would allow for an expansion in the use of these simulation platforms in training and assessment. Level of Evidence 5

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“…Haptic interfaces are devices that enable manual interaction with virtual environments. They are employed for tasks that are usually performed using hands in the real world [9], [18], [20]. The haptic device used for this research is a 5-DOF haptic wand.…”

Section: Evaluation Of Haptic Interfacesmentioning

confidence: 99%

A Toolkit for Haptic Force Feedback in a Telerobotic Ultrasound System

Fotouhi

Semnani

Zhang

et al. 2021

Preprint

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Objective To develop a collision engine (haptic force feedback simulator) compatible with a 5-degrees-of-freedom (DOF) haptic wand. This has broad applications such as for telerobotic ultrasound systems. Integrating force feedback into systems is critical to optimize remote scanning. A collision engine compatible with a 5-DOF haptic wand was developed based on the Gilbert–Johnson–Keerthi algorithm. The collision engine calculated force during collision between the wand and a virtual object based on code developed using MATLAB. A proportional force was subsequently returned to a user via the haptic wand, thereby simulating the collision force for the user. Three experiments were conducted to assess the accuracy of the collision engine on curved and flat surfaces. Results The average errors in calculation of distances between the wand and virtual object were 2.1 cm, 3.4 cm, and 4.2 cm for the model of the human hand, cylinder, and cuboid, respectively. The collision engine accurately simulated forces on a flat surface, though was less accurate on curved surfaces. Future work will incorporate haptic force feedback into a telerobotic ultrasound system. The haptic force simulator presented here may also be used in the development of ultrasound simulators for training and education.

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Elements of virtual temporal bone surgery: Manipulandum format may be more important to surgeons than haptic device force capabilities

Cited by 6 publications

References 14 publications

Study on Collision Detection and Force Feedback Algorithm in Virtual Surgery

Study on Collision Detection and Force Feedback Algorithm in Virtual Surgery

A review of simulation applications in temporal bone surgery

A Toolkit for Haptic Force Feedback in a Telerobotic Ultrasound System

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