Virtual reality training and assessment in laparoscopic rectum surgery

Pan, Jun; Chang, Jian; Yang, Xiaosong; Liang, Hui; Zhang, Jian Jun; Qureshi, Tahseen; Howell, Robert E.; Hickish, Tamas

doi:10.1002/rcs.1582

Cited by 41 publications

(31 citation statements)

References 30 publications

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“…Therefore the collision detection of rigid surgical instrument and soft tissues takes the most computation time for interaction [10]. In a real-time VR system, the display rate of graphic rendering is about 30 frames per second.…”

Section: Methodsmentioning

confidence: 99%

“…Experiment 2 is to compare our adaptive GPU-based collision detection method with other two typical approaches [10, 35], in interacting with four different abdominal organs: liver, gall-bladder, intestine and stomach.…”

Section: Methodsmentioning

confidence: 99%

“…Pan et al [9, 10] developed a medical simulator for the virtual laparoscopic rectum surgery. They use triangle meshes and multi-layer mass spring model to represent the intestine and surrounding membrane tissue.…”

Section: Introductionmentioning

confidence: 99%

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RETRACTED: Graphic and haptic simulation for transvaginal cholecystectomy training in NOTES

Pan

Ahn

Dargar

et al. 2016

Journal of Biomedical Informatics

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Background Natural Orifice Transluminal Endoscopic Surgery (NOTES) provides an emerging surgical technique which usually needs a long learning curve for surgeons. Virtual reality (VR) medical simulators with vision and haptic feedback can usually offer an efficient and cost-effective alternative without risk to the traditional training approaches. Under this motivation, we developed the first virtual reality simulator for transvaginal cholecystectomy in NOTES (VTEST™). Methods This VR-based surgical simulator aims to simulate the hybrid NOTES of cholecystectomy. We use a 6DOF haptic device and a tracking sensor to construct the core hardware component of simulator. For software, an innovative approach based on the inner-spheres is presented to deform the organs in real time. To handle the frequent collision between soft tissue and surgical instruments, an adaptive collision detection method based on GPU is designed and implemented. To give a realistic visual performance of gallbladder fat tissue removal by cautery hook, a multi-layer hexahedral model is presented to simulate the electric dissection of fat tissue. Results From the experimental results, trainees can operate in real time with high degree of stability and fidelity. A preliminary study was also performed to evaluate the realism and the usefulness of this hybrid NOTES simulator. Conclusions This prototyped simulation system has been verified by surgeons through a pilot study. Some items of its visual performance and the utility were rated fairly high by the participants during testing. It exhibits the potential to improve the surgical skills of trainee and effectively shorten their learning curve.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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RETRACTED: Graphic and haptic simulation for transvaginal cholecystectomy training in NOTES

Pan

Ahn

Dargar

et al. 2016

Journal of Biomedical Informatics

Self Cite

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“…Besides from precise anatomical modeling for a specific patient, real time soft tissue simulation is also a crucial part of the fast surgery simulation system [50]. Due to the fact that most of anatomical parts are soft tissue within the surgery, the accuracy of soft tissue deformation would enormously influence the performance of the whole framework [21].…”

Section: Surgery Simulationmentioning

confidence: 99%

Virtual Reality Surgery Simulation: A Survey on Patient Specific Solution

Zhang

Chang

Yang

et al. 2017

Next Generation Computer Animation Techniques

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Abstract. For surgeons, the precise anatomy structure and its dynamics are important in the surgery interaction, which is critical for generating the immersive experience in VR based surgical training applications. Presently, a normal therapeutic scheme might not be able to be straightforwardly applied to a specific patient, because the diagnostic results are based on averages, which result in a rough solution. Patient Specific Modeling (PSM), using patient-specific medical image data (e.g. CT, MRI, or Ultrasound), could deliver a computational anatomical model. It provides the potential for surgeons to practice the operation procedures for a particular patient, which will improve the accuracy of diagnosis and treatment, thus enhance the prophetic ability of VR simulation framework and raise the patient care. This paper presents a general review based on existing literature of patient specific surgical simulation on data acquisition, medical image segmentation, computational mesh generation, and soft tissue real time simulation.

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“…MIS requires a fine surgery which inserts and controls a subminiature endoscope (1 mm diameter) and laser into a cavity through only 2D CT image. As an endoscopy is hard to learn high-level surgical skills, efficient surgical training method or system is required [1,2].…”

Section: Introductionmentioning

confidence: 99%

A development of an epiduroscopy training simulator based on spatial cognition learning

Jang¹,

Ko²,

Choi³

et al. 2017

Vib. proced.

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Abstract. An epiduroscopy is an effective minimally invasive surgery (MIS) used for chronic lumbago and lumbar disc herniation. As such an endoscopy is hard to learn high-level surgical skills, efficient surgical training method or system is required. Therefore, this paper proposed an epiduroscopy training simulator based on spatial cognition learning. The proposed training simulator provided four scenarios for catheter manipulation training, and it provides quantitative training results based on various measured data (completion time, number of violation and surgical instrument trajectory).

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Virtual reality training and assessment in laparoscopic rectum surgery

Abstract: Background Virtual-Reality based simulation techniques offer an efficient and low cost alternative to the conventional surgery training. This article describes a VR training and assessment system in laparoscopic rectum surgery.

Cited by 41 publications

References 30 publications

RETRACTED: Graphic and haptic simulation for transvaginal cholecystectomy training in NOTES

RETRACTED: Graphic and haptic simulation for transvaginal cholecystectomy training in NOTES

Virtual Reality Surgery Simulation: A Survey on Patient Specific Solution

A development of an epiduroscopy training simulator based on spatial cognition learning

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