Method for digital subtraction angiography using a volume dataset
US7386156B2 · kind B2 · utility
4Cited by
18References
3Claims
0Family size
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Key dates
| Filing date | Apr 15, 2004 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Mar 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30101
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a method to implement digital subtraction angiography, an image of structures (in particular vessels) of a body region is generated by subtraction of image data of a first 2D x-ray image, that is created without enrichment of the structures with contrast agent, from image data of a second 2D x-ray image of the body region that is acquired with contrast agent enrichment of the structures. The image data of the first 2D x-ray image are calculated from a 3D volume dataset of the body region. The x-ray dose applied in the subtraction angiography thus can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.