Other

Carestream Health, Inc.

Anna-Sesilia Vlachomitrou

Stephane Alric

Jean-Marc Inglese

Sylvie M Bothorel

Vincent Loustauneau

An extra-oral dental imaging system comprises an X-ray source () and an imaging device () suitable for producing multiple frames during at least part of an exposure of an object (), the imaging device () being displaced along a scanning direction (X). A method for creating a cephalometric image of a human skull comprises a step of setting said imaging device () with an active area having in an imaging plane a width extending along said scanning direction (X), said width varying along a height direction perpendicular to said scanning direction (X); a step of synchronously displacing the X-ray source () and the imaging device () along said exposure profile; and a step of registering multiple frames produced by the imaging device () during the exposure of said object () to be imaged. Using for creating a cephalometric image by digital tomosynthesis.

Method and device for creating a cephalometric image

Dental radiographic imaging systems and/or methods for using the same can provide panoramic 2D dental radio-graphic images. Providing improved panoramic 2D image quality can depend on imaging a desired/selected focal trough, which is itself based on a correct positioning of the patient's head inside the panoramic dental imaging system. Exemplary dental radiographic imaging systems and/or methods for using the same can provide a patient positioning device (e.g., bite stick embodiments) that can position or urge patients to get the right positioning (such as head tilt) to increase probabilities of the improved/best panoramic image reconstruction. Further, certain exemplary bite stick embodiments can repeatedly, consistently and/or correctly position patient after patient for panoramic imaging.

Dental bite block for 2D imaging

A composite image () is created from a plurality of tomographic slices by creating a plurality of two-dimensional slice images by projecting the slices, dividing each slice image into tiles () according to a pattern (), calculating a focus value for each tile () of each slice image, selecting one tile () for each position in the pattern having a highest focus measure value, and assembling the composite image () from said selected tiles ().

Method for creating a composite cephalometric image

Dental radiographic imaging systems and/or methods for using the same can provide panoramic 2D dental radiographic images. Providing improved panoramic 2D image quality can depend on imaging a desired/selected focal trough, which is itself based on a correct positioning of the patient's head inside the panoramic dental imaging system. Exemplary dental radiographic imaging systems and/or methods for using the same can provide a patient positioning device (e.g., bite stick embodiments) that can position or urge patients to get the right positioning (such as head tilt) to increase probabilities of the improved/best panoramic image reconstruction. Further, certain exemplary bite stick embodiments can repeatedly, consistently and/or correctly position patient after patient for panoramic imaging.

A panoramic dental x-ray unit. The unit includes a support rotating about an axis and carrying, in the opposite position, an x-ray source and detector which move following a predetermined trajectory. The unit further includes means for acquiring images of the dental arch of a patient corresponding to the positions of the detector and of the source with respect to the dental arch. There is also provided means for reconstruction of a two portions of a panoramic image corresponding respectively to two disconnected portions of the dental arch, the reconstruction being performed from certain acquired images which each contain at least one piece of information concerning the two disconnected portions of the dental arch.

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Paris, France

Anna-Sesilia Vlachomitrou