Variable dose application by modulation of x-ray tube current during CT scanning
US5379333A · kind A · utility
103Cited by
2References
9Claims
0Family size
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Key dates
| Filing date | Nov 19, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Nov 19, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/60
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An x-ray CT system modulates x-ray tube current as a function of gantry angle to reduce the total patient dose without significantly increasing image noise. A scout scan is performed to acquire attenuation data which enables an optimal current modulation profile to be calculated for each slice in the scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.