摘要
为进一步提高超声医师培训效率以及降低培训成本,开发了一种与虚拟现实(VR)环境集成在一起的超声训练系统。将基于光线追踪的超声图像模拟方法整合到虚拟现实环境中,利用沉浸式VR体验进行医学超声培训,并将该方法获得的模拟超声图像与使用基于生成对抗网络(GAN)技术和Field Ⅱ超声模拟器模拟的超声图像进行比较。实验数据表明,本文的超声模拟器在光线数量为256,模型的三角片数量超过200 000的条件下,能够以43帧/s的速度实时生成高质量的模拟超声图像,同时验证了光线追踪结合VR环境进行超声模拟是可行的。
In order to further improve the efficacy of ultrasound training and reduce the cost. An ultrasound training system that is integrated with a VR environment is developed. The main contribution of this study is to incorporate the Ray-tracing based ultrasound image simulation approach into a virtual reality environment, taking advantage of immersive VR experience for medical ultrasound training. The simulated ultrasound images obtained by the proposed method are then compared to images that are simulated using a generative adversarial network(GAN) technique and Field Ⅱ ultrasound simulator. The data show that the ultrasound simulator can produce high-quality simulated ultrasound images in real-time at 43 frames/s by tracing over 256 rays through numerical phantom models with more than 200 000triangles, at the same time, it is verified that ray tracing combined with VR environment for ultrasonic simulation is feasible.
作者
彭博
汪强
青芮冰
尹立雪
姜劲枫
Peng Bo;Wang Qiang;Qing Ruibing;Yin Lixue;Jiang Jingfeng(School of Computer Science,Southwest Petroleum University,Chengdu 610500,China;Dept.of Echo-cardiology and Non-invasive Cardiology,Sichuan Academy of Medical Science,Sichuan Provincial People’s Hospital,Chengdu 610072,China;Sichuan Academy of Medical Sciences·Sichuan Provincial People's Hospital,Sichuan Provincial Key Laboratory of Echocardiography and Biomechanics,Chengdu 610072,China;Dept.of Biomedical Engineering,Michigan Tech University,Houghton,MI 49931,USA)
出处
《系统仿真学报》
CAS
CSCD
北大核心
2022年第11期2425-2436,共12页
Journal of System Simulation
基金
四川省科技厅应用基础研究(2021YJ0248)
四川省成都市科技局国际合作项目(2019-GH02-00040-HZ)。
关键词
虚拟现实
超声模拟
医学图像模拟
光线追踪
超声训练检查
virtual reality
ultrasound simulation
medical image simulation
ray-tracing
sonography training
