Low-dose iso-centering

Details Low-dose iso-centering Low-dose iso-centering

A - Human Necessities

61

B

A61B 6/00 (2006.01)

Patent

CA 2622227

Iso-centering a volume of interest (VOI) (170) within a patient (168) to undergo examination on a rotational X-ray apparatus (100) is achieved by taking two differently-angled pictures (S210) and updating positional settings (172) for the patient's table (112) responsive to respectively displayed centering of the VOI (152). Alternatively, the operator identifies respective VOI centers (S410, S450) for each of the two displayed pictures, and corresponding table movement is automatically calculated (S420).

L'invention concerne la détermination de l'isocentre d'un volume d'intérêt (VOI) (170) chez un patient (168) soumis à un examen sur un appareil à rayons X rotationnel (100) par prise de deux images (S210) à angle différent et mise à jour des paramètres (172) de positionnement de la table (112) du patient en réponse au centrage respectivement affiché du VOI (152). En variante, l'opérateur identifie les centres respectifs (S410, S450) du VOI pour chacune des deux images affichées, et le mouvement correspondant de la table est automatiquement calculé (S420).

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