Method reconstructing images for spiral and non-spiral...

A - Human Necessities – 61 – B

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A61B 6/03 (2006.01) G06T 11/00 (2006.01)

Patent

CA 2485376

General scheme processes and systems for constructing algorithms for reconstructing images of objects that have been scanned (10) in a spiral or non-spiral fashion with detectors. Application of the scheme requires finding of a weight function (30), which would lead to the required reconstruction algorithm (60). This general scheme can use a C-arm scan with a closed x-ray source trajectory and gives a new, theoretically exact and efficient reconstruction algorithm.

Procédés et systèmes à protocole général de construction d'algorithmes pour de la reconstruction d'images d'objets ayant été scannés (10) de manière spirale ou non spirale à l'aide de détecteurs. L'application du protocole nécessite la recherche d'une fonction de pondération (30) qui permette d'obtenir l'algorithme de reconstruction (60) voulu. Ce protocole général peut utiliser un balayage de bras C et une trajectoire de source de rayons X stable, et produire un nouvel algorithme de reconstruction efficace et théoriquement exact.

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