Katsumi Tsujioka PhD, Presenter: Nothing to Disclose

Yasutomo Sato, Abstract Co-Author: Nothing to Disclose

Hirona Kimata, Abstract Co-Author: Nothing to Disclose

Masayoshi Niwa, Abstract Co-Author: Nothing to Disclose

Yoshitaka Isobe, Abstract Co-Author: Nothing to Disclose

Ryoichi Kato MD, Abstract Co-Author: Nothing to Disclose

We developed the real time IVR-CT system using slice image projection mapping method. It is necessary to let a CT image warp to reflect this on the surface of the patient definitely. The operator watches a crooked CT image at the surface of the patient and understands that it is a CT image in the human body. We carried out the making of the image distortion using projection mapping software. And we evaluated the visual precision.(1) A liquid crystalline projector was used to reflect a CT image. (2) Video Projection Tools (VPT) was used as software to make a distortion. (3) The position of the projector changed it into Z-axis direction and the X-Y direction. (4) We evaluated the sharpness and the visual effect.  

(1) The angle for the Z-axis was good at 70 degrees from 50 degrees. (2) The angle for the X-Y axis was good at 90 degrees from 70 degrees. (3) The change of the sharpness was small. (4) It was recognized as an image in the human body visually.  It was necessary to let an image warp to perform slice image projection mapping method. By using VPT software, we could make the distortion precisely and freely.  

http://abstract.rsna.org/uploads/2014/14014990/14014990_z73k.pdf

Tsujioka, K, Sato, Y, Kimata, H, Niwa, M, Isobe, Y, Kato, R, Making of the Distortion for the Real Time IVR-CT System using Slice Image Projection Mapping Method.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14014990.html