A61B6/587

Scattered X-ray detection to detect misuse and prevent harm

An apparatus and related method for supporting X-ray imaging. The apparatus comprises an input interface (IN) for receiving an X-radiation scatter measurement obtained by an X-ray sensor (SX.sub.i) during operation of an X-ray imager (XI) for imaging a first object (PAT). A predictor component (PC) is configured to predict, based on said measurement, whether or not: i) a second object (P) is present, or ii) there is sufficient X-ray exposure of said first object (PAT). The apparatus comprises an output interface (OUT) for outputting a predictor signal indicative of an outcome of said prediction.

METHODS AND SYSTEMS FOR A FIELD-OF-VIEW PREVIEW
20220207734 · 2022-06-30 ·

Various methods and systems are provided for a set of devices for an imaging system. In one example, the set of devices includes a first device configured to obtain a first set of image data and a second device configured to obtain a second set of image data along at least one dimension. The first and second sets of data may be compiled to generate a field-of-view (FOV) preview.

INTRAORAL COORDINATE SYSTEM OF DENTITION FOR THE DESIGN AND PLACEMENT OF DENTAL IMPLANTS
20220202377 · 2022-06-30 ·

This invention provides a mapped dental Cone Beam Computer Tomography (CBCT) workspace for the planning of placement of dental implants in the oral cavity. The workspace includes a template coordinate system in the oral cavity of a patient by placing a radiographic template having at least three radiographic markers of predetermined shape, size, and positions in the oral cavity, wherein the predetermined position is relative to at least one anatomical feature (natural or artificial) in the oral cavity. With this method, only a single CBCT scan is required. The CBCT scan is used to create a CBCT workspace with a coordinate system based on the radiographic template. Within the workspace, Implant Planning Software can be used to plan dental implants.

X-RAY IMAGING APPARATUS AND POSITIONAL DEVIATION DETECTION UNIT FOR X-RAY IMAGING APPARATUS
20220202388 · 2022-06-30 ·

An X-ray imaging apparatus is provided with an X-ray irradiation unit, an X-ray detection unit, a moving mechanism unit movable in a state of supporting the X-ray irradiation unit, an optical feature point acquisition unit, and a notification unit. The optical feature point acquisition unit is provided on either one of the X-ray irradiation unit and the X-ray detection unit and is configured to optically detect a feature point provided on the other of the X-ray irradiation unit and the X-ray detection unit to acquire the position of the feature point. The positional deviation acquisition unit acquires the positional deviation of the relative position between the X-ray irradiation unit and the X-ray detection unit based on the position of the feature point. The notification unit performs a notification based on the positional deviation.

Advanced concept mobile X-ray imaging device
11369325 · 2022-06-28 · ·

A mobile X-ray system includes a movable base, a robotic arm mounted on the movable base, an X-ray source attached to the robotic arm, a radiation detector, one or more user interfaces, and a controller configured to determine a position of the X-ray source and a position of the detector and to automatically move the base and the robotic arm to align the X-ray source with the detector.

Methods and systems for calibrating an X-ray apparatus

The present disclosure relates to methods and systems for calibrating an X-ray apparatus. The X-ray apparatus may include an X-ray detector and a collimator. To calibrate the X-ray apparatus, the methods and systems may include moving the X-ray detector from a first position to a second position along a first axis of a coordinate system, wherein the first position is under a scanning table, and the second position is outside the scanning table; moving the collimator to align the collimator with the X-ray detector at the second position; determining one or more parameters; and determining a second value of the first encoder when the collimator is aligned with the X-ray detector at the first position based on the one or more parameters.

RADIOLOGY ASSEMBLY AND METHOD FOR ALIGNING SUCH AN ASSEMBLY

A radiology assembly includes an x-ray tube for generating a beam of x-rays that is centered around a main emission direction, a planar sensor extending in a plane defined by a first direction and by a second direction, which directions are substantially perpendicular to the main x-ray emission direction, the sensor being intended to receive the x-rays, comprising a first divided emitter that is divided into two electromagnetic-field-emitting portions; a second divided emitter that is divided into two electromagnetic-field-emitting portions; a so-called planar electromagnetic-field emitter, electromagnetic-field sensors that are securely fastened to the planar sensor, a processing means intended to determine an angle of alignment between the main emission direction and a normal of the planar sensor, to determine a first centering error and a second centering error, a correcting means for correcting the angle of alignment by applying a first corrective movement to the x-ray tube and first and second centering errors by applying the first corrective movement and/or a second corrective movement to the x-ray tube.

IMAGING SYSTEMS AND METHODS

Methods and systems for X-ray and fluoroscopic image capture and, in particular, to a versatile, multimode imaging system incorporating a handheld X-ray emitter operative to capture non-invasive images of a target; a stage operative to capture static X-ray and dynamic fluoroscopic images of the target; a system for the tracking and positioning of the X-ray emission to improve safety of obtaining X-ray images as well as improve the quality of X-ray images. Where the devices can automatically limit the field of the X-ray emission.

MOVABLE AND STATIC COLLIMATORS AND X-RAY SOURCE ARRANGEMENTS FOR INTRAORAL TOMOSYNTHESIS

An intraoral tomosynthesis imaging apparatus having an intraoral detector coupled to a frame or radio-opaque marker attached to its radiation facing surface without any frame attached, wherein the frame defines a target aperture for an incident radiation beam. An enclosure seats against the target aperture and houses at least one x-ray source configured to emit a radiation beam from each of a plurality of focal points within the enclosure A collimator is disposed to form a collimated radiation beam and direct the collimated beam through the target aperture and to the detector. A geometric calibration phantom having a plurality of radio-opaque markers is disposed in the path of the collimated beam. This arrangement is modified to operate as a regular intraoral imaging device by accommodating a high-power central source at the same or different distances as other sources from the detector and displacing the phantom from the field of view.

DETERMINING A CONFIGURATION OF A MEDICAL X-RAY IMAGING SYSTEM FOR DETECTING A MARKER DEVICE
20230263500 · 2023-08-24 ·

This document relates to technologies of determining a configuration of a medical imaging system comprising an x-ray source and an x-ray detector mounted on a gantry and an x-ray source collimator for shaping the x-ray beam emitted by the x-ray source, wherein at least one of the x-ray source and the x-ray detector is movable along the gantry. The configuration of the medical imaging system comprises the position of the x-ray source, the position of the x-ray detector and the settings of the x-ray source collimator and is to be used for capturing a marker image, wherein the position of the marker device can be calculated using the marker image.