@article{oai:repo.qst.go.jp:00044372,
 author = {Endo, Masahiro and Yoshida, Katsuya and Kandatsu, Susumu and et.al and 遠藤 真広 and 吉田 勝哉 and 神立 進},
 journal = {CARS : Computer Assisted Radiology and Surgery : Proceedings of the International Congress and Exhibition},
 month = {},
 note = {We describe the development and performance evaluation of cone beam CT. This CT is based on video-fluoroscopic system and yields data that is amenable to three-dimensional (3D) image processing. An X-ray tube and a large area two-dimensional detector were mounted on a single frame and rotated around objects in 12 seconds. The large area detector consisted of a fluorescent plate and a charge coupled device (CCD) video camera. While the X-ray tube was rotated around the object, a pulsed X-ray was generated (30 pulses per second) and 360 projected images were collected in a 12-second scan. A 256x256x256 matrix image was reconstructed using a high-speed parallel processor with reconstruction time of 6 minutes. Image characteristics such as spatial resolution, image noise and distortion were evaluated by phantoms. The results showed isotropic spatial resolution and no distortion of images though they showed larger image noise than conventional CT.},
 pages = {497--500},
 title = {Development and performance evaluation of cone beam CT using video-fluoroscopic system},
 year = {1998}
}