Université Grenoble Alpes

Surgiqual Institute

Centre Hospitalier Universitaire De Grenoble

Centre Hospitalier Universitaire De Grenoble Alpes

Yannick Grondin

Laurent Desbat

Philippe Cinquin

Philippe Augerat

Marion Decrouez

Benjamin Spencer

Radiographic imaging system including: an x-ray transmission unit; an x-ray receiver unit; a plate made from a material opaque to x-rays and situated between the transmission unit and the receiver unit, the plate including at least four channels, each channel enabling a part of the x-rays emitted by the transmission unit to pass through the channel; and an image processing unit configured to determine the coordinates of the projected patterns and to calculate a position of the receiver unit from the coordinates of the projected patterns and from the coordinates of the channels.

Radiographic imaging system and method for positioning one such system

The invention relates to an X-ray imaging device including a rotary collimator having a region () which is opaque to X-rays, a first slot () and a second slot (), which are transparent to X-rays and extend in two different directions, passing through the opaque region, the collimator making it possible to determine the position of an element provided with X-ray sensors in an imaging system (FIG.).

Rotary collimator for determining the position of an element provided with sensors in an X-ray imaging system

The invention relates to an X-ray imaging system wherein images are obtained using an X-ray blocking element, the system comprising means for determining a position of the detector () on the basis of coordinates of projected patterns of the blocker () in an image in order to especially be able to perform a calibration and/or correct the contribution of the scatter radiation in a radiographic image obtained by the system.

X-ray imaging system allowing the correction of the scatter radiation and precise detection of the distance between the source and the detector

Growing community of inventors

Challes les Eaux, France

Yannick Grondin