A Collaborative Virtual Reality Environment for Neurosurgical Planning and Training

Kockro, Ralf A.; Stadie, Axel; Schwandt, Eike; Reisch, Róbert; Charalampaki, Cleopatra; Ng, Ivan; Yeo, Tseng Tsai; Hwang, Peter; Serra, Luis; Perneczky, Axel

doi:10.1227/01.neu.0000303997.12645.26

Cited by 67 publications

(68 citation statements)

References 20 publications

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“…A PC-based laparoscopic cholecystectomy simulator, MIST VR, 18 has proved effective in improving laparoscopic intracorporeal suturing skills. 19 More recent work in neurosurgery 20,21 and endoscopy 22 is focused on highly realistic Figure 8. Average entry tear size area (top) and exit tear size area (bottom) for the four groups of study and different types of needles.…”

Section: Discussionmentioning

confidence: 99%

Assessing suturing techniques using a virtual reality surgical simulator

et al. 2010

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Advantages of virtual-reality simulators surgical skill assessment and training include more training time, no risk to patient, repeatable difficulty level, reliable feedback, without the resource demands, and ethical issues of animal-based training. We tested this for a key subtask and showed a strong link between skill in the simulator and in reality. Suturing performance was assessed for four groups of participants, including experienced surgeons and naive subjects, on a custom-made virtual-reality simulator. Each subject tried the experiment 30 times using five different types of needles to perform a standardized suture placement task. Traditional metrics of performance as well as new metrics enabled by our system were proposed, and the data indicate difference between trained and untrained performance. In all traditional parameters such as time, number of attempts, and motion quantity, the medical surgeons outperformed the other three groups, though differences were not significant. However, motion smoothness, penetration and exit angles, tear size areas, and orientation change were statistically significant in the trained group when compared with untrained group. This suggests that these parameters can be used in virtual microsurgery training.

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Section: Discussionmentioning

confidence: 99%

Assessing suturing techniques using a virtual reality surgical simulator

et al. 2010

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“…Although many neurosurgical training techniques are being used today such as mannequin head, virtual reality environment, animal or cadaver dissections, the human placenta can be easily and cheaply used 1,2,3 . As the placenta fetal surface is very similar to the cerebral arachnoid and the placenta vessels have the same size as the intracranial arteries, the dissection of human placenta is a very good microsurgical training.…”

Section: Discussionmentioning

confidence: 99%

“…One of them is the dissection of human placenta. Others include mannequin head 1 , virtual reality environment 2 , animal and cadaver dissections 3 . The human placenta is a maternalfetal structure constituted of a bigger fetal portion and a smaller maternal portion.…”

mentioning

confidence: 99%

Microsurgical techniques using human placenta

Romero

Fernandes

Chaddad-Neto

et al. 2008

Arq. Neuro-Psiquiatr.

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Training in microsurgical techniques is the first step to allow procedures in the central nervous system. One of them is the dissection of human placenta. Others include mannequin head 1 , virtual reality environment 2 , animal and cadaver dissections 3 . The human placenta is a maternalfetal structure constituted of a bigger fetal portion and a smaller maternal portion. The fetal membranes and the placenta are responsible for protection, nutrition, breath, excretion and hormone production 4 . The placenta usually shows an ovoid shape with a 16-20 cm diameter and a 2-3 cm thickness 4 . It weighs between 500 and 600 gr 4 . The umbilical cord is usually composed of a vein and two arteries. The fetal surface has a fetal corion -amniotic membrane which is very similar to the cerebral arachnoid and a rich vascular component with 1-6 mm diameter vessels 4 . The anterior cerebral artery has 1-3 mm diameter and the medium cerebral artery one is between 2.4 and 4.6 mm. On the other hand, the vertebral artery has 0.92-4.09 mm diameter, the posterior cerebral and the lower posterior cerebelar arteries ones are between 0.65 and 1.78 mm.Therefore, the human placenta is an excellent material for microsurgical technique training 3,5,6 . METHOdThis study was developed at the Microsurgery Laboratory of the Hospital Beneficência Portuguesa de São Paulo and was also approved by the local ethics committee.Twenty-five human placentas were analyzed to check if they were suitable for microvascular exercising. The available length and diameter of the vessel were measured and different microvascular anastomoses were performed. The used microsurgical materials were 3,5,6 : forceps; microsurgery scissors; microsurgical knife; microsurgery needle holders; vascular clip appliers; neurovascular surgery clips; suture thread 10.0; Insulin syringe and needle; saline solution 0.9%.

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“…Vários trabalhos verificados na literatura utilizaram a estereoscopia com múltiplos propósitos: de ensino 1-8 ; treinamento [9][10][11][12][13][14][15] ; planejamento operatório [16][17][18][19][20][21] ; tratamento [22][23][24][25][26][27] e documentação. [28][29][30] Considerou-se, neste trabalho, a estereoscopia como componente essencial dos ambientes de realidade virtual (RV).…”

Section: Início E Evolução Do Conhecimento Da Neuroanatomia E Utilizaunclassified

“…11,12,39,40 A RV também já é citada como uma ferramenta no processo de planejamento operatório. 13,[16][17][18][19][20][21]24,[41][42][43][44][45] A planificação de ato operató-rio por cirurgião experiente e a compreensão do que se fará, por parte do aprendiz, utilizando-se métodos visuais atrativos, principalmente se aliados à estereoscopia, podem fornecer meio preciso e rápido de aprendizado. A RV se presta a planificar operações de modo a utilizar melhores ângulos de vista com menor risco para o paciente.…”

Section: Realidade Virtual: Início E Emprego Em Neuroanatomia E Neurounclassified

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2013

Arq Bras Neurocir

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A Collaborative Virtual Reality Environment for Neurosurgical Planning and Training

Abstract: We believe the system provides a highly effective way to work with 3-D data in a group, and it significantly enhances teaching of neurosurgical anatomy and operative strategies.

Cited by 67 publications

References 20 publications

Assessing suturing techniques using a virtual reality surgical simulator

Assessing suturing techniques using a virtual reality surgical simulator

Microsurgical techniques using human placenta

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