A Training System for Ultrasound-Guided Needle Insertion Procedures
A Training System for Ultrasound-Guided Needle Insertion Procedures
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DOI：
10.1007/978-3-540-75757-3_69
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发表时间：
2007-10
期刊：
影响因子：
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通讯作者：
Yanong Zhu;D. Magee;Rish Ratnalingam;D. Kessel
中科院分区：
文献类型：
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作者：
Yanong Zhu;D. Magee;Rish Ratnalingam;D. Kessel
在超声引导下将针放置到患者体内是临床实践中经常执行的程序。安全和成功地执行这样的程序需要高水平的空间推理和手眼协调技能，必须通过密集的练习来发展。在本文中，我们提出了一个培训系统，旨在提高技能的介入放射学学员在超声引导下的针放置程序。该系统涉及的关键问题包括表面和体积配准、实体纹理建模、空间校准以及超声图像的实时合成和渲染。此外，使用质量弹簧模型方法实现由针移动和针切割引起的软组织变形。这些都导致了一个现实的超声模拟系统，这已被证明是一个有用的工具，针插入程序的培训。初步结果的构建评估研究表明开发的培训系统的有效性和实用性。
Needle placement into a patient body under guidance of ultrasound is a frequently performed procedure in clinical practice. Safe and successful performance of such procedure requires a high level of spatial reasoning and hand-eye co-ordination skills, which must be developed through intensive practice. In this paper we present a training system designed to improve the skills of interventional radiology trainees in ultrasound-guided needle placement procedures. Key issues involved in the system include surface and volumetric registration, solid texture modelling, spatial calibration, and real-time synthesis and rendering of ultrasound images. Moreover, soft tissue deformation caused by the needle movement and needle cutting is realised using a mass-spring-model approach. These have led to a realistic ultrasound simulation system, which has been shown to be a useful tool for the training of needle insertion procedures. Preliminary results of a construct evaluation study indicate the effectiveness and usefulness of the developed training system.