X-ray diagnostic apparatus using an X-ray flat panel detector and method for controlling the X-ray diagnostic apparatus
US6222906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Jan 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/803
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Pixel data in a region of a flat panel detector is obtained and displayed. For example, pixel data in a region irradiated with X-ray is obtained and displayed. The region to be irradiated with-the X-ray is estimated according to a degree of opening of an X-ray beam limiting device and a distance between the X-ray beam limiting device and the flat panel detector. Further, it can be determined from pixel data value of the flat panel detector also. A region of a patient can be also determined from the pixel data. Thus, an image corresponding to the entire flat panel detector, an image corresponding to an X-ray irradiation region and an image corresponding to a patient region can be displayed. A resolution for obtaining the pixel data is changed corresponding to the size of a region in the flat panel detector whose pixel data should be obtained and a processing resolution of an image processing means at post step. Particularly in an X-ray diagnostic apparatus of bi-plane structure, an observation region can be traced flexibly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.