Methods, apparatus, and computer-program products for increasing accuracy in cone-beam computed tomography
US8009794B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2009 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Apr 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are methods, systems, and computer-product programs for increasing accuracy in cone-beam computed tomography (CBCT) by obscuring portions of the radiation source so that the radiation only passes through the specific areas of the patient related to the regions-of-interest to the doctor. The obscuring action causes less radiation scattering to occur in the patient's body, thereby reducing a major source of error in the image accuracy caused by scattered radiation. Scattered radiation received by detector pixels that are obscured by direct-line of sight radiation may be used to estimate the scattered radiation in the un-obscured portion, which can be used to further increase the accuracy of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.