Patent ID: 6198790
Filing Date: 2001-03-06
Classification: A61B,G01N

Abstract:
An X-ray diagnostic apparatus comprising:a computed tomography system having a rotatable gantry ring with a first X-ray tube mounted on said gantry ring and a radiation receiver mounted on said gantry ring opposite said first X-ray tube, said radiation receiver emitting electrical signals dependent on attenuated X-rays incident thereon, and a computer supplied with said electrical signals for reconstructing a tomographic image therefrom, said computed tomography system being continuously operated as said gantry ring rotates; anda system for producing a radiographic image independently of said computed tomographic system, including a second X-ray tube mounted on said gantry ring and a matrix-like radiation detector mounted on said gantry ring opposite said second X-ray source, and a control unit connected to said second X-ray tube for activating said second X-ray tube in pulsed fashion only at predetermined rotational positions of said second X-ray tube as said gantry ring rotates.