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21KF-053
Development of Virtual Reality Intervention Procedure Simulator on the training of Pain Procedures

Ji Yeong Kim1, Hyoung Gyun Kim2,Yoonsun Park2, Kae HongLee2, Jae Chul Koh2

Department of Anesthesiology and Pain Medicine, Gangnam severance Center, University of Yonsei College of Medicine, Seoul, Republic of Korea1

Department of Anesthesiology and Pain Medicine, Korea University Anam Center, University of Korea College of Medicine, Seoul, Republic of Korea2

Introduction
Due to changes in the medical education environment, it is becoming increasingly difficult for trainees to learn radiation assistance procedures. Education using cadaver or phantom is being conducted, but there is a disadvantage in that accessibility is poor due to irradiation and cost. Training using VR can be effective in that it does not need to be performed directly on the patient and is not exposed to radiation. In that, we developed a virtual reality simulator in implementing the selective transforaminal epidural block.

Materials and Methods
An anonymized lumbar CT data file of a patient¡¯s vertebrae were obtained from the anonymized data server and segmented using a 3D slicer program.
The obtained CT data was used to obtain spatial location, direction, and size values, and axial, conical, and sagittal images were placed in the virtual space. (Figure 1). By creating a virtual c-arm, generators and detectors were set like actual c-arm, and data was calibrated to create virtual x-rays in various directions like the actual procedure environment. (Figure 2)
The 3D spinal data obtained through slice and segmentation 3d data of CT were placed in exactly the same space. (Figure 3). The classical/optical indicator and needle were virtually made and used in the simulation. (Figure 4)
The block performance was evaluated between audiovisual lecture only and VR simulation training group. A total of 10 residents (7 men, 3 women ) participated in this study. Both checklist score and global rating score was improved in both group (Figure 5). And overall satisfaction score was higher in Group V ( 3.16 vs 4.54 ).

Conclusion
Learning scores improved after using VR simulator. Though further evaluation seems necessary, VR simulator might improve learning efficacy for fluoroscopic guided procedures.

Key Words : Virtual reality Intervention procedure, education, segmentation, selective transforaminal epidural block

Reference
1) Bernardo A. Virtual Reality and Simulation in Neurosurgical Training. World Neurosurg. 2017;106:1015-1029.
2) Izard SG, Juanes JA, Garc P. Virtual Reality as an Educational and Training Tool for Medicine. J Med Syst. 2018;42(3):50.