Dose instrumentation methods and apparatus for collimated CT imaging systems
US6304625A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/612
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One embodiment of the present invention is a method for measuring a radiation dose of a patient applied by a computerized tomography (CT) imaging system having a radiation source emitting a radiation beam and a radiation detector. The method includes steps of: scanning a patient with the radiation beam; imaging the patient utilizing radiation detected by the radiation detector; and estimating a patient radiation dose from said imaging utilizing a measurement of radiation delivered to only a portion of the detector during said imaging. The present invention permits the advantages of a post-patient collimated detector array to be realized while providing an accurate estimate of patient radiation dosage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.