Invited Talk : Standardization Projects in 3D-Based Medical Device Applications – Visualization, Data Management, 3D Simulation, Bio-CAD Format for 3D Printing

게시일: May 13, 2018 7:23:36 AM

Abstract of Young Lae Moon's Talk

Introduction

Recent advances in technology of medical image have made medical simulation that is helpful to diagnosis, operation plan, or education. Improving and enhancing the medical imaging have led to the availability of high definition images and three-dimensional (3D) visualization, it allows a better understanding in the medical and educational field.

The Real human field of view is stereoscopic. Therefore, with just 2D images, stereoscopic reconstruction process through the surgeon’s head, is necessary. To reduce these process, 3D images have been used. 3D images enhanced 3D visualization, it provides significantly shorter time for surgeon for judgment in complex situations.

Based on 3D image data set, virtual medical simulations, such as virtual endoscopy, medical planning, and real-time interaction, have become possible. This article describes principles and recent applications of newer medical imaging techniques and special attention is directed towards medical 3D reconstruction techniques.

1. Kinematic Imaging

Using CT or MRI of various positions of human body, kinematics of movement can be identified. For virtual surgery, information of the anatomy spatial relationships and moment is necessary. This kinematic information can be acquired by using measurements from 3D reconstructed medical models and computer-aided design software.

As well as CT or MRI, 3D electromagnetic motion capture device was also used to detect the motion of body. 4D CT is also used and it can provide adequate and novel assessment of biomechanics both before and after medical repair. 4D kinematic MRI datasets allow to view anatomical structure from any viewing perspective in real-time.

2. Medical Simulation and printing

For an interactive virtual reality-based simulation, several features such as virtual camera, medical equipment model, reference patient model, and texturing and rendering are necessary. Each feature must have same display and material properties with real situation. For example, in case of camera, in order to display a screen like the actual surgery, the virtual camera should have same optical angle as an real endoscope view.

In case of soft tissue printing and simulation, it often has elaborate nonlinear material characteristics such as soft tissues that are soft and compliant to small strains. Therefore, to express the material characteristics, a constraint-based finite-element algorithm is used to simulate the nonlinear incompliant tissue materials efficiently for interactive simulation applications.

Conclusion

Development of CT, MR and other imaging modalities has ensued in new applications and possibilities of imaging. Among them, 3D printings and simulations are enthusiastic issue on clinical and research field. It can help the clinician to more effectively and shortly understand and decision. In addition, medical 3D technology provides advanced medical related applications, which is considered as a powerful instrument for clinician, students, as well as public health.

of medical imaging. Among them, 3D images are enthusiastic issue on clinical and research field. It can help the clinician to more effectively and shortly understand and decision. In addition, 3D images provide advanced medical related applications, which is considered as a powerful instrument for clinician, students, as well as public health.