G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 11/00 (2006.01) A61B 6/03 (2006.01)
Patent
CA 2623812
An imaging method for imaging a region of investigation (2) of an object (1), comprises the steps of generating an energy input beam (3) with an energy beam source (10), irradiating the region of investigation (2) with energy input beam components (4) of the energy input beam (3) along a plurality of projection directions, the energy input beam components (4) being formed with a frame mask (40) being arranged between the energy input beam (10) and the object (1) and including frame mask windows (41), measuring first integrated attenuation values of the energy input beam components (4) with an outer detector device (21) arranged outside the frame mask (40) , measuring second integrated attenuation values of the energy input beam components (4) with a frame mask detector device (24) being arranged on an inner surface of the frame mask (40) , and reconstructing an image of the region of investigation (2) based on the first and second integrated attenuation values. Furthermore, an imaging device (100) for imaging a region of investigation (2) of an object (1) is described.
L~invention concerne un procédé de formation d~images servant à former une image d~une région d~étude (2) d~un objet (1), comprenant les étapes consistant à générer un faisceau d~énergie d~entrée (3) à l~aide d~une source (10) de faisceau d~énergie ; à irradier la région d~étude (2) par des composantes (4) du faisceau d~énergie d~entrée (3) le long d~une pluralité de directions de projection, les composantes (4) du faisceau d~énergie d~entrée étant formées à l~aide d~un masque d~images (40) disposé entre le faisceau d~énergie d~entrée (10) et l~objet (1) et comportant des fenêtres (41) de masque d~images ; à mesurer des premières valeurs d~atténuation intégrées des composantes (4) du faisceau d~énergie d~entrée à un dispositif de détection extérieur (21) placé à l~extérieur du masque d~images (40) ; à mesurer des deuxièmes valeurs d~atténuation intégrées des composantes (4) du faisceau d~énergie d~entrée à un dispositif (24) de détection de masque d~images disposé sur une surface intérieure du masque d~images (40) ; et à reconstituer une image de la région d~étude (2) en fonction des premières et deuxièmes valeurs d~atténuation intégrées. L~invention concerne également un dispositif de formation d~images (100) servant à former une image d~une région d~étude (2) d~un objet (1).
Hoeschen Christoph
Tischenko Oleg
Xu Yuan
Deeth Williams Wall Llp
Helmholtz Zentrum Muenchen Deutsches Forschungszentrum Fuer Gesu
The State Of Oregon Acting By And Through The State Board Of Hig
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