@article{oai:repo.qst.go.jp:00044373,
 author = {遠藤, 真広 and 吉田, 勝哉 and 日下部, 正宏 and 舘野, 之男 and その他 and 遠藤 真広 and 吉田 勝哉 and 日下部 正宏 and 舘野 之男},
 issue = {1},
 journal = {Radiation Medicine},
 month = {},
 note = {We describe the design and implementation of a system that acquires three-dimensional (3D) data of high-contrast objects such as bone, lung, and blood vessels (enhanced by contrast agent). This 3D computed tomography (CT) system is based on a cone beam and video-fluoroscopic system and yields data that is amenable to 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 tha 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. Reconstruction required approximately 6 minutes. Two volunteers under-went scans of the head or chest. High-contrast objects such as bronchial, vascular, and mediastinal structures in the thorax, or bones ans air cavities in the head were delineated in a "real" 3D format. Our 3D CT-scanner appears to produce data useful for clinical imaging and 3D image processing.},
 pages = {7--12},
 title = {Development of a 3D CT-Scanner Using a Cone Beam and Video-Fluoroscopic System},
 volume = {16},
 year = {1998}
}