Microsurgery Simulator of Cerebral Aneurysm Clipping with Interactive Cerebral Deformation Featuring a Virtual Arachnoid

Shono, Naoyuki; Kin, Taichi; Nomura, Seiji; Miyawaki, Satoru; Saito, Toki; Imai, Hideki; Nakatomi, Hirofumi; Oyama, Hiroshi; Saito, Nobuhito

doi:10.1093/ons/opx155

Cited by 29 publications

(26 citation statements)

References 30 publications

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“…We try to follow guidelines for achieving efficient workflow in skill laboratories published elsewhere, [ 3 7 29 ] and training sessions are being organized in coordination with different other surgical subspecialities, for example, head-and-neck surgery, traumatology, surgical oncology, and urology for maximum utilization of resources (cadavers). We agree that advancements in virtual simulators are challenging the “Gold standard status” of cadaver training, [ 20 30 31 32 ] and there is a general sentiment that these are ultimately destined to replace the art of cadaveric dissection. Still, a high-quality virtual simulator, which has realistic deformation of tissues and a good haptic feedback, requires a heavy investment in terms of initial cost, and as of now, they are yet not freely available outside few institutes in the west.…”

Section: Discussionmentioning

confidence: 99%

Simulation training for neurosurgical residents: Need versus reality in Indian Scenario

et al. 2021

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Section: Discussionmentioning

confidence: 99%

Simulation training for neurosurgical residents: Need versus reality in Indian Scenario

et al. 2021

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“…e treatment of cerebral aneurysm is a very complicated process, and accurate diagnosis of the patient is a critical step [11]. e patient's diagnosis rate is closely related to the quality of the examination images.…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Low-Rank Matrix Denoising Algorithm-Based MRI and CT Images in Diagnosis of Cerebral Aneurysms

Zheng

et al. 2021

Scientific Programming

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This study aimed to compare the role of magnetic resonance imaging (MRI) and computed tomography (CT) images based on the low-rank matrix (LRM) denoising (LRMD) algorithm in the diagnosis of cerebral aneurysms (CAs). By comparing the role of MRI and CT in the diagnosis of CA, it would be helpful to formulate more reasonable diagnosis strategies and provide a solid foundation for clinical treatment of patients. 80 patients with cerebral aneurysm admitted to hospital were selected as the research objects. First, the LRMD algorithm was established and applied to the image denoising process of MRI and CT. Then, the diagnosis rate of CA by MRI and CT before and after denoising was compared, and the diagnostic rates of the two methods for aneurysms of different sizes were compared. Finally, the location, foci, and patient satisfaction of the aneurysm were compared. The results showed that the MRI and CT images after denoising with LRM were clearer, and the secondary structures in the brain were more obvious. It meant that LRMD had good image denoising effect. The diagnostic rate of denoised MRI and CT was improved. Although the difference was not statistically notable, the diagnostic rate of CT was obviously higher in contrast to MRI ( P < 0.05 ). The diagnostic rate of CT for smaller aneurysms (<3 mm and 3–5 mm) was also notably higher in contrast to MRI ( P < 0.05 ). However, there was no difference in the diagnosis of tumor location between the two. The clarity of CT diagnostic images was better than MRI ( P < 0.05 ). Accordingly, patients were more satisfied with CT in contrast to MRI ( P < 0.05 ). In summary, CT images based on the LRMD algorithm were superior to MRI in the diagnosis of CA, and it could provide more accurate diagnosis results.

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“…Although surgical simulation is not novel and is greatly accepted for training residents or improving specific surgical skills, only a few studies have been reported that involved rehearsing a patient's cerebrovascular lesion operation before the actual surgery (Table 2). In fact, the majority of these studies have compared the preplanned procedure to the actual surgery for aneurysm clip- Similar strategy performed in the actual surgery; strategy (e.g., more clips) usually changed because of hard wall or wide-necked lesion ping 7,9,10,19,21,22 and endovascular management; these studies have mainly assessed microcatheter vascular access or endosaccular embolization. 6,8,13 In general, the results of the above studies suggest that the preplanned strategy is usually performed in the actual procedure and the benefits are perceived by the operator, however, there is no consensus on how to objectively measure outcomes after simulation and there is no prediction of the long-term outcome for the patient.…”

Section: Discussionmentioning

confidence: 99%

Three-dimensional printing and neuroendovascular simulation for the treatment of a pediatric intracranial aneurysm: case report

Sullivan¹,

Aguilar‐Salinas²,

Santos³

et al. 2018

Journal of Neurosurgery: Pediatrics

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The use of simulators has been described in a variety of fields as a training tool to gain technical skills through repeating and rehearsing procedures in a safe environment. In cerebrovascular surgery, simulation of skull base approaches has been used for decades. The use of simulation in neurointervention to acquire and enhance skills before treating a patient is a newer concept, but its utilization has been limited due to the lack of good models and deficient haptics. The advent of 3D printing technology and the development of new training models has changed this landscape. The prevalence of aneurysms in the pediatric population is much lower than in adults, and concepts and tools sometimes have to be adapted from one population to another. Neuroendovascular rehearsal is a valid strategy for the treatment of complex aneurysms, especially for the pediatric population. The authors present the case of an 8-year-old boy with a fusiform intracranial aneurysm and documented progressive growth, who was successfully treated after the authors rehearsed the placement of a flow diverter using a patient-specific 3D-printed replicator system model.

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Microsurgery Simulator of Cerebral Aneurysm Clipping with Interactive Cerebral Deformation Featuring a Virtual Arachnoid

Abstract: A virtual clipping simulator mainly focusing on supporting tissues and less on physical properties seemed to be useful in the surgical simulation of cerebral aneurysm clipping. To our knowledge, this article is the first to report brain deformation based on supporting tissues.

Cited by 29 publications

References 30 publications

Simulation training for neurosurgical residents: Need versus reality in Indian Scenario

Simulation training for neurosurgical residents: Need versus reality in Indian Scenario

Comparative Analysis of Low-Rank Matrix Denoising Algorithm-Based MRI and CT Images in Diagnosis of Cerebral Aneurysms

Three-dimensional printing and neuroendovascular simulation for the treatment of a pediatric intracranial aneurysm: case report

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