Determining a spatial distribution of a material property value on the basis of a single energy image recording
US9872662B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2016 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Dec 6, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/5205
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is for determining a spatial distribution of a material property value in an examination region of an examination object. According to an embodiment, the method includes capturing measurement projection data; reconstructing image data based upon the captured measurement projection data; estimating a distribution of two basic materials using a threshold value by classifying image points; determining a distribution of the two basic materials based upon the estimated distribution and a general dependency rule; and determining a spatial distribution of the material property value, independent of the measurement energy, based upon the determined distribution and based upon a previously known theoretical relationship between the distribution of the material property value and a distribution of the two basic materials. In addition, a material property distribution determining device is described in one embodiment, and a computer tomography system is also described in another embodiment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.