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公开(公告)号：US11517277B2
公开(公告)日：2022-12-06
申请号：US16468994
申请日：2017-12-14
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Stewart Young , Daniel Bystrov , Jens Von Berg
Abstract: The field of view of an X-ray imaging system should be set appropriately to ensure that anatomical information of interest is not omitted. In particular, it is necessary to ensure that the operator of an X-ray system does not allow a patient to leave the X-ray imaging system until it is certain that the correct anatomy has been imaged. This application discusses a technique enable the visualization of a field of view boundary error caused by the incorrect configuration of an X-ray imaging system. Optionally, the boundary error is displayed either on a user display of a system console, or by projecting the field of view error onto the patient in the X-ray system. Thus, an operator of the system may be alerted to the presence of a boundary error, enabling a new X-ray exposure to be taken, if necessary.
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公开(公告)号：US11375969B2
公开(公告)日：2022-07-05
申请号：US16469679
申请日：2017-12-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Stewart Young , Daniel Bystrov , Jens Von Berg
Abstract: Medical radiography requires specialist control of radiography equipment to achieve good imaging results. Typical errors that can occur consist of an inappropriate field of view being accidentally applied. This results in a “cropping effect” in which portions of the region of interest of a patient which would be of clinical use are omitted from the image. Conventionally, the only solution is to re-take the entire image with a more appropriate (and inevitably larger) field of view selected. This is undesirable, because it might require recall of the patient from another location, and the patient will be subject to two exposures, thus undesirably increasing their X-ray dosage. The present application proposes to use an anatomical atlas to analyse an X-ray image output from an initial exposure, in particular to assess whether significant anatomical elements are missing from the image. If elements are missing, the field of view of the X-ray imager is recalibrated, using collimation or pan/tilt adjustments, for example. A subsequent X-ray image is obtained, and combined with the initial image, to provide an output image. Because only a small area of the region of interest may subsequently need to be exposed, a smaller additional dose results.
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公开(公告)号：US11058383B2
公开(公告)日：2021-07-13
申请号：US16347825
申请日：2017-10-26
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Jens Von Berg , Stewart Young , Daniel Bystrov , Nataly Wieberneit
Abstract: The present invention relates to an apparatus for the detection of opacities in X-ray images. It is described to provide (210) an analysis X-ray image of a region of interest of an analyzed body part. A model of a normal region of interest is provided (220), wherein the model is based on a plurality of X-ray images of the region of interest. At least one abnormality is detected (230) in the region of interest of the analyzed body part, the detection comprising comparing the analysis X-ray image of the region of interest and the model of the normal region of interest. Information is output (240) on the at least one abnormality.
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公开(公告)号：US10548570B2
公开(公告)日：2020-02-04
申请号：US16081623
申请日：2017-03-03
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Daniel Bystrov , Torbjoern Vik , Astrid Ruth Franz , Harald Sepp Heese , Rafael Wiemker , Dominik Benjamin Kutra
Abstract: A system and a method are provided for enabling a user to interactively navigate through a set of slice images, the set of slice images jointly representing an image volume showing an anatomical structure of a patient. A user may be enabled to switch from a static viewing mode to a navigation mode based on navigation commands received from a user input device operable by the user. A display processor may be configured for, in the static viewing mode, generating an output image comprising one slice image of the set of slice images. The display processor may be configured for, in the navigation mode, replacing the said one slice image in the output image by a volume rendering of a slab of the image volume, the slab comprising more than one slice image. The system and method thus selectively switch to volume rendering, namely during navigation, whereas in a static (i.e., non-navigation) viewing mode, a slice image is shown. Advantageously, the user may thus follow structures more accurately when navigate through a volume image, thereby more quickly and accurately identifying slice images of interest.
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公开(公告)号：US20190043611A1
公开(公告)日：2019-02-07
申请号：US16050257
申请日：2018-07-31
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Axel Saalbach , Tom Brosch , Daniel Bystrov , Nagaraju Bussa , Dinesh Mysore Siddu
Abstract: There is provided an apparatus (104) for storing medical imaging data. The apparatus comprises a processor configured to acquire a medical imaging study relating to a subject; identify elements in the medical imaging study that are indicative of the identity of the subject; anonymize the medical imaging study by removing the identified elements from the medical imaging study; deliver the anonymized medical imaging study for storage at a first location; and deliver data relating to the identified elements for storage at a second location. An apparatus for retrieving medical imaging data from storage, associated methods and a computer program product are also disclosed.
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Patent Agency Ranking
公开(公告)号：US09600879B2
公开(公告)日：2017-03-21
申请号：US14784818
申请日：2014-04-17
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Daniel Bystrov , Torbjorn Vik , Heinrich Schulz
CPC classification number: G06T7/0012 , G06F3/0481 , G06T5/50 , G06T7/11 , G06T2207/10072 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104 , G06T2207/10116 , G06T2207/10132 , G06T2207/20104 , G06T2207/20221 , G06T2207/30004
Abstract: The present invention relates to a method for use in the concurrent display of medical images from different imaging modalities. A system and a computer program product for use in relation to the method are also disclosed. In the method, a primary image and a secondary image from a different imaging modality are fused. In the fused image, a first pixel group from the primary image having primary image data values within a first range are mapped to grayscale image values. A second pixel group from the primary image having primary image data values within at least a second range are identified, and the secondary image data values of corresponding pixels in the secondary image are mapped to color image values in the fused image.
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27.发明授权公开(公告)号：US12148201B2
公开(公告)日：2024-11-19
申请号：US17776083
申请日：2020-11-09
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sven Kroenke , Jens Von Berg , Daniel Bystrov , Bernd Lundt , Nataly Wieberneit , Stewart Young
IPC: G06V10/774 , G06T7/00 , G06V10/776 , G06V10/82 , G16H30/40
Abstract: The invention relates to a method (100) for supervised training of an artificial neural network for medical image analysis. The method comprises acquiring (SI) first and second sets of training samples, wherein the training samples comprise feature vectors and associated predetermined labels, the feature vectors being indicative of medical images and the labels pertaining to anatomy detection, to semantic segmentation of medical images, to classification of medical images, to computer-aided diagnosis, to detection and/or localization of biomarkers or to quality assessment of medical images. The accuracy of predetermined labels may be better for the second set of training samples than for the first set of training samples. The neural network is trained (S3) by reducing a cost function, which comprises a first and a second part. The first part of the cost function depends on the first set of training samples, and the second part of the cost function depends on a first subset of training samples, the first subset being a subset of the second set of training samples. In addition, the second part of the cost function depends on an upper bound for the average prediction performance of the neural network for the first subset of training samples and the second part of the cost function is configured for preventing that the average prediction performance for the first subset of training samples exceeds the upper bound.
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公开(公告)号：US10433796B2
公开(公告)日：2019-10-08
申请号：US15572169
申请日：2016-06-17
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Daniel Bystrov , Astrid Ruth Franz , Nicole Schadewaldt , Rafael Wiemker
Abstract: System and related method to visualize image data. The system comprises an input port (IN) for receiving i) image data comprising a range of intensity values converted from signals acquired by an imaging apparatus in respect of an imaged object, and ii) a definition of a first transfer function configured to map a data interval within said range of said intensity values to an image interval of image values. A transition region identifier (TRI) identifies from among intensity values outside said data interval, one or more transition intensity values representative of a transition in composition and/or configuration of said object or of a transition in respect of a physical property in relation to said object. A transfer function generator (TFG) generates for said intensity values outside said data interval a second transfer function. The second transfer function is non-linear and has a respective gradient that is locally maximal around said transition intensity values. A renderer (RD) then renders, on a display unit (MT), a visualization of at least a part of said image data based on the two transfer functions.
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公开(公告)号：US10244993B2
公开(公告)日：2019-04-02
申请号：US15127570
申请日：2015-03-25
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Dominik Benjamin Kutra , Thomas Buelow , Cristian Lorenz , Daniel Bystrov
Abstract: The present invention relates to a compression and shielding device (10) for X-ray mammography, an X-ray mammography system, and a method for X-ray mammography. The compression and shielding device (10) for X-ray mammography comprises a compression element (11), and a shielding (12). The compression element (11) is arranged to compress a part of the breast to be examined. The shielding (12) is to be arranged between an X-ray source (2) and the compression element (11) to shield an uncompressed part of the breast from the X-ray radiation. The shielding (12) is formed to allow the direction of X-ray radiation to the compressed part of the breast and to keep an uncompressed part of the breast uncovered.
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公开(公告)号：US20190090849A1
公开(公告)日：2019-03-28
申请号：US16081623
申请日：2017-03-03
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Daniel Bystrov , Torbjoern Vik , Astrid Ruth Franz , Harald Sepp Heese , Rafael Wiemker , Dominik Benjamin Kutra
CPC classification number: A61B8/466 , A61B5/0035 , A61B5/004 , A61B5/055 , A61B6/032 , A61B6/037 , G06F19/00 , G06F19/321 , G16H30/40 , G16Z99/00
Abstract: A system and a method are provided for enabling a user to interactively navigate through a set of slice images, the set of slice images jointly representing an image volume showing an anatomical structure of a patient. A user may be enabled to switch from a static viewing mode to a navigation mode based on navigation commands received from a user input device operable by the user. A display processor may be configured for, in the static viewing mode, generating an output image comprising one slice image of the set of slice images. The display processor may be configured for, in the navigation mode, replacing the said one slice image in the output image by a volume rendering of a slab of the image volume, the slab comprising more than one slice image. The system and method thus selectively switch to volume rendering, namely during navigation, whereas in a static (i.e., non-navigation) viewing mode, a slice image is shown. Advantageously, the user may thus follow structures more accurately when navigate through a volume image, thereby more quickly and accurately identifying slice images of interest.
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