Abstract: A computer-implemented method of compensating for image quality issue in an image study. The method includes acquiring a current image study, measuring, via a processor, a patient positioning parameter indicating a deviation of a patient position in the current image study to an optimal patient position for an image exam type of the current image study and analyzing, via an analysis module, the current image study and the determined patient positioning parameter to determine a relationship between positioning errors and a grading of a diagnostic finding for the current image study, wherein the grading of the diagnostic finding includes one of a severity of the diagnostic finding or a certainty classification of the diagnostic finding.

Abstract: The present invention relates to peripheral perfusion analysis. In order to provide improved information for a perfusion analysis, a device (10) for peripheral perfusion analysis is provided. The device comprises a data input (12), a data processor (14) and an output interface (16). The data input is configured to provide a sequence of 2D angiograms (18); and to provide a measured perfusion signal (20) of perfused contrast agent in a region of interest. The data processor is configured to extract the region of interest; to define a blood supply section comprising blood flow entry into and blood flow exit out of the region of interest; to segment the blood supply section to extract regions occupied by detectable vessels; to identify vessels responsible for an inflow to extract the blood inlet into the region of interest; and to sum up all blood inlet of the section providing a perfusion sum. The output interface is configured to deconvolve the perfusion signal of the region of interest with the perfusion sum.

Abstract: The present invention relates to assisting scapula positioning in chest X-ray imaging. Provided is a system and related method for assisting subject positioning in chest X-ray imaging, wherein the system comprises an optical detection device (110), a user interface (130), and a processor (120), connected to the optical detection device (110) and the user interface (130). Thereby, the processor (120) is configured to receive an optical image signal of a rear view of the subject(S), determine a current positioning of a scapula of the subject(S) based on the optical image signal, wherein the current positioning of the scapula is assessed as to whether and/or to which extent it would overlap or would not overlap a lung field of the subject to be imaged and determine a feedback for positioning the subject(S) and/or its scapula based on the determined current positioning of the scapula. The user interface (130) is configured to provide the feedback for positioning the subject.

Abstract: A system and method are provided for analyzing perfusion parameters of skin. The method includes acquiring a multi-band reflectance image of skin; delineating at least one clinically relevant spatial component of the multi-band reflectance image of the surface, where the at least one clinically relevant spatial component has substantially homogenous optical properties; performing reconstruction on the at least one clinically relevant spatial component using a corresponding at least one tailored reconstruction algorithm, respectively, where the at least one tailored reconstruction algorithm is specific to the at least one clinically relevant spatial component; and outputting estimated perfusion parameters of the skin for the at least one reconstructed clinically relevant spatial component from the at least one tailored reconstruction algorithm.

Abstract: A device includes a light source, a camera, a memory and a processor. The light source emits emission light to a wound at a plurality of wavelengths. The camera detects backscattered light generated based on the emission light. The memory stores instructions. The processor executes the instructions. When executed by the processor, the instructions cause the device to record an image based on the backscattered light; quantify a degree of infection of the wound based on the image, and output an indication of the degree of infection.

Abstract: The present invention relates to patient positioning. In order to facilitate patient positioning, an apparatus is provided that comprises an input unit, a processing unit, and an output unit. The input unit is configured to receive an X-ray image of an anatomy of interest of a patient obtained from a first image acquisition and a target set of pose parameters describing a target position of the anatomy of interest for image acquisition. The processing unit is configured to detect the anatomy of interest in the X-ray image, to determine a set of pose parameters describing a current position of the detected anatomy of interest in the first image acquisition, to determine a difference between the determined set of pose parameters and the target set of pose parameters, and to construct a trajectory that defines a sequence of sets of pose parameters for bringing the anatomy of interest from the current position to the target position, if the difference is equal to or greater than a pre-defined threshold.

Abstract: Technology provides baseline images for diagnostic applications, including receiving a diagnostic image relating to a condition of a patient, the diagnostic image reflecting one of a normal state or an abnormal state of the condition, and generating a baseline image via a neural network using the diagnostic image, where the neural network is trained to generate a prediction of the diagnostic image reflecting a normal state of the condition. The neural network can include a generative adversarial network (GAN) trained only on image data with a normal state of the condition, where generating the baseline image includes an optimization process to maximize a similarity between the diagnostic image and a response of the GAN. Generating the baseline image can include selecting a portion of the diagnostic image, and adjusting a relevance weighting to be applied to the selected portion of the diagnostic image in the optimization process.

Abstract: The present invention relates to perfusion analysis. In order to provide a facilitated way of achieving and providing perfusion analysis, a device (10) for perfusion analysis is provided that comprises a data input (12), a data processor (14) and an output interface (16). The data input is configured to provide X-ray based 2D angiographic image data as first image data of a region of interest of a subject; wherein the first image data comprises information about a distribution of contrast agent in tissue areas of the region of interest being indicative for perfusion; and to provide 2D optical perfusion measurement image data as second image data of a surface layer of a flat part of the region of interest of the subject; wherein the second image data comprises information about blood related properties of blood present within the surface layer of the flat part of the region of interest.

Abstract: The present invention provides a retrospective analysis of subject and/or implant positioning. Provided is a method and device for assisting positioning of a subject having an implant in X-ray imaging. The method comprises the steps of receiving (S1) X-ray image data of the subject including the implant, receiving (S2) exam request data indicating at least an exam type to be performed for the specific implant, and determining at least one set of image features being assigned to the requested exam type and indicative for positioning of the subject and/or the implant relative to an X-ray imaging device. Further, the method comprises analyzing (S3) an image content of the received X-ray image data for the determined set of image features, and determining (S4), from the analysis of the image content, a feedback being indicative for positioning the subject and the X-ray imaging device to each other with respect to a target positioning, to be provided for assisting the positioning.

Abstract: The present invention relates to prospective analysis of subject and/or implant positioning. Provided is a computer-im-plemented method for assisting positioning of a subject having an orthopedic implant in X-ray imaging. The method comprises applying one or more radiofrequency, RF, signals to an anatomy of interest of the subject where the orthopedic implant is located. The method further comprises detecting a response signal and/or signal change in response to the applied RF signal impacting the orthopedic implant and tissue being adjacent to and/or surrounding the implant, and determining, from the detected response signal and/or signal change, an implant positioning estimation relative to an X-ray imaging device. Further, the method comprises determining, from the implant positioning estimation, a feedback being indicative for positioning the X-ray imaging device and the subject to each other with respect to a target positioning, to be provided for assisting the positioning.

Abstract: The present invention relates to medical imaging. In order to reduce repeat images, it is proposed to enable automated prediction of quality metrics prior to image formation by exploiting data from sensors. This may greatly improve the quality of medical image data acquired in the actual imaging examination, thereby leading to fewer retakes, less delayed treatment to patients, shortened workflow, and higher patient rate. In X-ray and CT exams, fewer retakes may also reduce radiation doses for patients.

Abstract: An X-ray imaging system (100) includes an X-ray source (110) and an X-ray detector (120) that are separated by an examination region (150) for performing an X-ray imaging operation on an object (160). A processor (140) is configured to identify (S120) one or more internal structures (180) within the object (160), based on a comparison of depth sensor data representing a three-dimensional surface (170) of the object (160), with an anatomical model comprising the one or more internal structures (180). The processor (140) is also configured to compute (S130), using the depth sensor data and the identified one or more internal structures (180), a surface projection (190) of the one or more internal structures, on the surface (170) of the object (160), from a perspective of the X-ray source (110); and to output (S140) an image representation of the surface projection (190) for displaying as an overlay on the surface (170) of the object (160).

Abstract: There is provided a computer-implemented method for determining rotation of a patient's chest in a medical image. The method comprises: receiving the medical image of the patient; processing the medical image to determine scapular spatial data relating to the patient's scapula; and determining rotation of the patient's chest with respect to at least one reference axis using the scapular spatial data.