Simulating blood accumulation with improved smoothed particle hydrodynamics in surgical simulation system

IF 2.3 3区医学 Q2 SURGERY

International Journal of Medical Robotics and Computer Assisted Surgery Pub Date : 2024-07-14 DOI:10.1002/rcs.2663

Pengyu Sun, Peter Xiaoping Liu

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引用次数: 0

Abstract

Background

Blood accumulation often occurs during bleeding in surgery. Simulating the blood accumulation in surgical simulation system not only enhances the realism and immersion of surgical training, but also helps researchers better understand the physical properties of blood flow.

Methods

To realistically simulate the blood accumulation during the bleeding, this paper proposes a novel kernel function with non-negative second derivatives to improve the SPH method. Meanwhile, a simple form of boundary force equation is constructed to impose the solid boundary condition.

Results

We simulate the blood accumulation during liver bleeding and vessel bleeding respectively in the surgical simulation system. The simulation results show that there is no occurrence of blood physically penetrating the boundary.

Conclusions

Applying the solid boundary condition to the blood by using the method proposed in this paper is not only convenient but can also eliminate compression instability in the blood accumulation simulation.

查看原文本刊更多论文

在手术模拟系统中利用改进的平滑粒子流体力学模拟血液积聚。

背景：外科手术出血时经常会出现积血现象。在手术模拟系统中模拟积血不仅能增强手术训练的真实感和沉浸感，还能帮助研究人员更好地理解血流的物理特性：为了真实模拟出血过程中的积血现象，本文提出了一种具有非负二阶导数的新型核函数来改进 SPH 方法。结果：我们模拟了肝脏出血过程中的血液积聚：我们在手术模拟系统中分别模拟了肝脏出血和血管出血时的积血情况。模拟结果表明，没有出现血液物理穿透边界的情况：结论：利用本文提出的方法对血液应用固体边界条件不仅方便，而且可以消除积血模拟中的压缩不稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Medical Robotics and Computer Assisted Surgery 医学-外科

CiteScore

4.50

自引率

12.00%

发文量

131

审稿时长

6-12 weeks

期刊介绍： The International Journal of Medical Robotics and Computer Assisted Surgery provides a cross-disciplinary platform for presenting the latest developments in robotics and computer assisted technologies for medical applications. The journal publishes cutting-edge papers and expert reviews, complemented by commentaries, correspondence and conference highlights that stimulate discussion and exchange of ideas. Areas of interest include robotic surgery aids and systems, operative planning tools, medical imaging and visualisation, simulation and navigation, virtual reality, intuitive command and control systems, haptics and sensor technologies. In addition to research and surgical planning studies, the journal welcomes papers detailing clinical trials and applications of computer-assisted workflows and robotic systems in neurosurgery, urology, paediatric, orthopaedic, craniofacial, cardiovascular, thoraco-abdominal, musculoskeletal and visceral surgery. Articles providing critical analysis of clinical trials, assessment of the benefits and risks of the application of these technologies, commenting on ease of use, or addressing surgical education and training issues are also encouraged. The journal aims to foster a community that encompasses medical practitioners, researchers, and engineers and computer scientists developing robotic systems and computational tools in academic and commercial environments, with the intention of promoting and developing these exciting areas of medical technology.