Scanning detection device of an X-ray CT apparatus, an X-ray CT system, and method of operation of the same
US7558365B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jun 20, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/544
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method of operating an X-ray CT apparatus and the corresponding apparatus and system thereof. A method includes analyzing scout scan data to obtain a position with a minimum noise index and a position with a maximum noise index, calculating noise indexes at the two positions in a range of a maximum and a minimum tube current that can be provided by the system by means of a tube current control model so as to obtain two ranges of noise index, and determining whether there is an intersection between the two ranges of noise index. If such an intersection exists, a combination of the range of tube current value and the range of noise index that meets the requirement is selected within the intersection to control the system to proceed with a subsequent scan. If no such intersection exists, the system ends the present scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.