Method of three-dimensional reconstruction of arborescence by labeling
US5175773A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1991 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Apr 23, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/404
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In order to reconstruct an angiographic arborescence, two images are acquired according to orientations substantially perpendicular to each other of an arborescence (IVA,CX) to be reconstructed. By a follow-up operation of the segments, the coordinates of the arborescence segments are reconstructed. Indeterminations resulting from the too small number of acquisitions effected are removed by emitting hypotheses (AV, IV) on forms deductible from the recorded acquisitions and by verifying those hypotheses with respect to a model. The model has the particularity of being structural, that is to say substantially descriptive. In this structural model, each arborescence segment is characterized by a number, by a direction (49-54), and by the numbers, direction and number of segments preceding or following it. By operating in this way, it has been proved that angiographic images may be reconstituted in a more rapid and simple way.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.