Centre National De La Recherche Scientifique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Institut National Des Sciences Appliquees De Lyon

Theraclion

Didier Vray

Thierry Pechoux

Jérôme Boutet

Laurent Guyon

Nadia Djaker

Laurent Saroul

Denis Friboulet

François Duboeuf

A phantom for medical imaging instrumentation, the phantom including a first hydrogel matrix, said matrix containing additives for simulating the optical and acoustic properties of a living organ or tissue. In the phantom, the additives include Indian ink or haemoglobin, silica powder and titanium dioxide powder. The phantom may contain a tumor simulator in solid or liquid form. It may also comprise several hydrogel matrices, each matrix including additives in different concentrations depending on the organ or tissue simulated. A method of producing the phantom includes one or more freeze-thaw cycles for optimizing the characteristics of the phantom.

Bimodal organ phantom and associated production method

A method of tracing the likely contour of an anatomical element in a sectional image of an anatomical site, the image being composed of pixels having different intensities, the method including the steps of: a) forming columns of pixels passing through the anatomical element; b) assigning each pixel a pixel score representing the probability of the pixel being situated on the contour of the anatomical element; c) constituting a matrix of pixel scores from a plurality of columns of pixels and defining numerous continuous paths of pixels, each passing through a single pixel of each column; d) assigning each continuous path a path score that is a function of the scores of the pixels constituting the continuous path; e) selecting from a set of continuous paths the path that has the best path score, that path representing the likely contour of the anatomical element.

Method of tracing the likely contour of an anatomical element on an image of a cross section

Growing community of inventors

Ternay, France

Didier Vray