<i>In vitro</i>simulator with numerical stress analysis for evaluation of stent-assisted coiling embolization in cerebral aneurysm treatments

Shi, Chaoyang; Kojima, M.; Tercero, Carlos; Najdovski, Zoran; Ikeda, Seiichi; Fukuda, Toshio; Arai, Fumihito; Negoro, Makoto

doi:10.1002/rcs.1563

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…Improving these skills is an important goal in students' career development. Developing skills will make those skills an individual property that is more important than just the value of learning outcomes [28], [29]. The preparations carried out in these 4 stages are key to optimizing individual skills and abilities in the literacy process.…”

Section: Resultsmentioning

confidence: 99%

Increasing Student Literacy Through The 4th Stages of The Case Method In Solving Problems

Mihardi,

Derlina,

Siregar

et al. 2024

Proceedings of the 5th International Conference on Innovation in Education, Science, and Culture, ICIESC 2023, 24 October 2023,

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The application of the case method stage indicators forms the basis of student literacy habits. Experience following the stages of the case method directs students to gradually explore the case-solving activities given. Improving student solving skills through literacy optimization shows an important influence of the case method applied as a flow of learning activities. Applied the stages of the case method, it will be analyzed which stages are more dominant in influencing case-solving skills through literacy activities. Tests were carried out with descriptive analysis and linear regression analysis. The valuation instrument is prepared by adapting the valuation process. There are 4 stages in the case method, namely: Problem/Dilemma Selection; Presentation Issues; Preparation Issues; and Curricular Issues. The four stages have specific specifications for improving literacy skills. The literacy used in presenting solutions to given cases is more likely to be applied in 2 stages (Preparation Issues-and Curricular Issues). At this stage, the increase in literacy reaches 60% with an average per work indicator. The percentage of this achievement is obtained based on the treatment given in solving cases through structured training through various systematic procedures and strict supervision of learning activities. Adjustments need to be made in monitoring activities for the settlement of proposed cases to achieve acceptable solutions. The solutions provided need to be tested and go through an evaluation process from various literacies that are analyzed in concluding. By following the stages of this process, students become trained and experience an increase in problem-solving literacy, although they have not yet become accustomed to providing solutions individually.

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Section: Resultsmentioning

confidence: 99%

Increasing Student Literacy Through The 4th Stages of The Case Method In Solving Problems

Mihardi,

Derlina,

Siregar

et al. 2024

Proceedings of the 5th International Conference on Innovation in Education, Science, and Culture, ICIESC 2023, 24 October 2023,

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“…Another advantage of the F-LVIS is its practicality. Over the years, a number of stent modeling techniques have been proposed that were based on an ideal aneurysm model [18][19][20]. According to previous studies, vascular and aneurysm geometries are regarded as strong factors that characterize intra-aneurysmal hemodynamics, which are closely correlated with the aneurysm's natural history [21,22].…”

Section: Discussionmentioning

confidence: 99%

Efficient simulation of a low-profile visualized intraluminal support device: a novel fast virtual stenting technique

et al. 2018

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Background:The low-profile visualized intraluminal support (LVIS) stent has become a promising endovascular option for treating intracranial aneurysms. To achieve better treatment of aneurysms using LVIS, we developed a fast virtual stenting technique for use with LVIS (F-LVIS) to evaluate hemodynamic changes in the aneurysm and validate its reliability. Methods: A patient-specific aneurysm was selected for making comparisons between the real LVIS (R-LVIS) and the F-LVIS. To perform R-LVIS stenting, a hollow phantom based on a patient-specific aneurysm was fabricated using a three-dimensional printer. An R-LVIS was released in the phantom according to standard procedure. F-LVIS was then applied successfully in this aneurysm model. The computational fluid dynamics (CFD) values were calculated for both the F-LVIS and R-LVIS models. Qualitative and quantitative comparisons of the two models focused on hemodynamic parameters. Results: The hemodynamic characteristics for R-LVIS and F-LVIS were well matched. Representative contours of velocities and wall shear stress (WSS) were consistently similar in both distribution and magnitude. The velocity vectors also showed high similarity, although the R-LVIS model showed faster and more fluid streams entering the aneurysm. Variation tendencies of the velocity in the aneurysm and the WSS on the aneurysm wall were also similar in the two models, with no statistically significant differences in either velocity or WSS. Conclusions: The results of the computational hemodynamics indicate that F-LVIS is suitable for evaluating hemodynamic factors. This novel F-LVIS is considered efficient, practical, and effective.

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Catheter manipulation training system based on quantitative measurement of catheter insertion and rotation

et al. 2014

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In vitrosimulator with numerical stress analysis for evaluation of stent-assisted coiling embolization in cerebral aneurysm treatments

Abstract: The technique presented can improve a surgeon's skills and quantify the performance of stents to improve mechanical design and classification. This method can contribute to three-dimensional stress and volume variation evaluation and assess a surgeon's skills.

Cited by 4 publications

References 25 publications

Increasing Student Literacy Through The 4th Stages of The Case Method In Solving Problems

Increasing Student Literacy Through The 4th Stages of The Case Method In Solving Problems

Efficient simulation of a low-profile visualized intraluminal support device: a novel fast virtual stenting technique

Catheter manipulation training system based on quantitative measurement of catheter insertion and rotation

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