Canon Patent Applications
Canon patent applications that are pending before the United States Patent and Trademark Office (USPTO).
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Publication number: 20230334670Abstract: A medical image-processing apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires a first medical image captured at first timing, and a second medical image in which an identical position to the first medical image is captured at second timing, which is different from the first timing, identifies a change region to be a logical OR of a first region included in the first medical image and a second region that corresponds to the first region and is included in the second medical image when the first medical image and the second medical image are overlaid on each other in an aligned manner, and calculates a degree of change of the change region between the first timing and the second timing based on the first region and the second region that form the change region.Type: ApplicationFiled: April 18, 2023Publication date: October 19, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akihiro TAGUCHI, Ryo SHIROISHI
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Publication number: 20230329665Abstract: A photon counting computed tomography (CT) method including, but not limited to, receiving a first forward model including a set of first parameters and a set of second parameters corresponding to a plurality of materials and path lengths by scanning a slab at plural tube voltages and plural tube currents of an X-ray tube; evaluating an image quality of a material decomposition image reconstructed by the set of first parameters and the set of second parameters; and updating at least one second parameters from the set of second parameters if the image quality of the material decomposition image does not satisfy a predetermined threshold, wherein the update of the at least one second parameter from the set of second parameters is achieved by updating the at least one second parameter from the set of second parameters to an energy dependent parameter from a constant value. Processing circuitry that is part of a photon counting computed tomography (CT) can implement the method.Type: ApplicationFiled: April 14, 2022Publication date: October 19, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Xiaohui ZHAN, Xiaofeng NIU, Ruoqiao ZHANG
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Publication number: 20230329677Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry calculates, based on first ultrasound information relating to a displacement over time of an organ that makes a periodic movement, a function relating to a clutter component originating from the organ, and calculates, based on the function and second ultrasound information relating to a displacement over time of the organ after pressure is applied to the organ, a shear wave that propagates through the organ by the applied pressure.Type: ApplicationFiled: April 11, 2023Publication date: October 19, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yasunori HONJO, Tomohisa IMAMURA
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Publication number: 20230337348Abstract: According to one embodiment, an X-ray tube includes a vacuum enclosure in which an output window which transmits X-rays is formed, an anode target provided in the vacuum enclosure so as to oppose the output window, a cathode filament provided in the vacuum enclosure, that emits electrons to be irradiated onto the anode target, a power feed section to which a high voltage cable is connected, and an insulating portion that covers the power feed section and the high-voltage cable with an insulating material, and the power feed section includes a contact surface with which a distal end surface of the high-voltage cable is brought into contact, and an angle formed by the contact surface and the side surface of the high-voltage cable is an acute angle.Type: ApplicationFiled: June 20, 2023Publication date: October 19, 2023Applicant: CANON ELECTRON TUBES & DEVICES CO., LTD.Inventors: Toshimi WATANABE, Junki SONE
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Publication number: 20230326027Abstract: A medical image processing apparatus comprises processing circuitry configured to: obtain medical image data comprising or representative of image data values and segmentation values for pixels or voxels of a volume; specify a sampling point within the volume; select a relevant pixel or voxel for the sampling point from a set of pixels or voxels neighboring the sampling point, wherein the selecting is based on a difference of an interpolated image data value at the sampling point and an image data value for each of the neighboring pixels or voxels and a distance between the sampling point and each of the neighboring pixels or voxels; and determine a segmentation value for the sampling point based on a segmentation value at a position of the selected relevant pixel or voxel.Type: ApplicationFiled: April 8, 2022Publication date: October 12, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Magnus Fredrik WAHRENBERG
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Publication number: 20230326564Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry. The processing circuitry acquires patient information relating to a target patient, environment information relating to an environment for execution, and target data relating to the target patient. processing circuitry determines, from a plurality of trained models differing from each other in processing speed and accuracy, a combination of trained models that satisfies a condition according to the patient information and the environment information.Type: ApplicationFiled: March 30, 2023Publication date: October 12, 2023Applicant: Canon Medical Systems CorporationInventors: Masahiro YOSHIWAKI, Takahiko NISHIOKA
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Publication number: 20230324480Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry is configured to calculate an allowable amount of heat input to a superconducting magnet, the allowable amount being allocated to each of a plurality of imagings scheduled during a target period. The processing circuitry is configured to determine an imaging condition based on the allowable amount in the each of the plurality of imagings.Type: ApplicationFiled: June 2, 2023Publication date: October 12, 2023Applicant: Canon Medical Systems CorporationInventors: Hitoshi KANAZAWA, Seiji NOZAKI, Takehiro SHIBUYA
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Publication number: 20230320615Abstract: In a medical image diagnostic apparatus according to an embodiment, an array coil includes a first substrate and a second substrate. At least one coil element is formed on the first substrate. The second substrate is a substrate different from the first substrate, and is laminated on the first substrate. At least one coil element is formed on the second substrate. A first coil element formed on the first substrate intersects with a second coil element formed on the second substrate in plan view from a laminating direction from the second substrate laminated on the first substrate toward the first substrate.Type: ApplicationFiled: March 30, 2023Publication date: October 12, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Masahiro FUKUSHIMA, Kazuya OKAMOTO
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Publication number: 20230326011Abstract: A medical image processing apparatus comprises processing circuitry configured to: receive medical image data that comprises or is obtained from scan data representing an anatomical region in which a sub-region is enhanced; predict, using a trained model, mask data from the medical imaging data, wherein the mask data is representative of the anatomical region without enhancement of the sub-region; and predict, using the trained model or a further trained model, subtraction data from the same medical image data, wherein the subtraction data is representative of the same anatomical region; wherein the processing circuitry is further configured to apply at least one constraint to obtain constrained subtraction data.Type: ApplicationFiled: April 6, 2022Publication date: October 12, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Murray CUTFORTH, Marco RAZETO
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Publication number: 20230325128Abstract: Method for a printing system for processing a print job comprising the print data and the plurality of print job settings. Automatically an area of the recording medium is established that is deemed to be removed or made invisible during the at least one finishing action by a finisher. A digital object is retrieved from memory of the printer which is used for checking and monitoring at least one characterization of the desired end product. The print data are printed and also the digital object is printed at the automatically established area.Type: ApplicationFiled: March 23, 2023Publication date: October 12, 2023Applicant: Canon Production Printing Holding B.V.Inventors: Marvin P. BRÜNNER, Wilhelmus J.E.G. VERHOFSTAD
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Publication number: 20230320685Abstract: According to one embodiment, a nuclear medicine diagnostic apparatus includes processing circuitry. The processing circuitry is configured to obtain an X-ray CT image relating to a subject. The processing circuitry is configured to obtain a camera image capturing a position and a shape of the subject corresponding to the X-ray CT image. The processing circuitry is configured to generate an attenuation map based on the camera image and the X-ray CT image. The processing circuitry is configured to obtain detection data based on gamma rays radiating from a radiation source administered into the subject. The processing circuitry is configured to reconstruct an image based on the attenuation map and the detection data.Type: ApplicationFiled: March 29, 2023Publication date: October 12, 2023Applicant: Canon Medical Systems CorporationInventor: Yasuhiro NOSHI
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Publication number: 20230320614Abstract: A magnetic resonance imaging apparatus of an embodiment includes a transmission coil, a reception coil, and first processing circuitry. The transmission coil radiates RF pulses to a subject. The reception coil receives magnetic resonance signals from the subject. The first processing circuitry controls the transmission coil and the reception coil. The reception coil includes a clock receptor, a phase synchronizer, and second processing circuitry. The clock receptor receives a clock signal wirelessly transmitted by the first processing circuitry. The phase synchronizer performs phase synchronization with the clock signal. The second processing circuitry controls the phase synchronizer. The second processing circuitry switches operating states of the phase synchronizer in accordance with a radiation timing of the RF pulses.Type: ApplicationFiled: March 24, 2023Publication date: October 12, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Sojuro KATO
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Publication number: 20230316512Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to acquire examination records of X-ray examinations performed on a plurality of patients; based on the acquired examination record, count the number of examinations for each content of X-ray examination used for each of the patients before a diagnosis is made, for a certain disease; and output whether there is a significant difference between the number of examinations for each content of X-ray examination serving as a reference, and the number of examinations for each content of X-ray examination counted by a first counting unit.Type: ApplicationFiled: March 24, 2023Publication date: October 5, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Junichi TAKAZAWA, Taisuke IWAMURA, Yuki MATSUMOTO, Satoshi SUGISAWA
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Publication number: 20230316513Abstract: A medical image processing apparatus of an embodiment includes processing circuitry. The processing circuitry acquires an input image including a region of interest of a subject. The processing circuitry acquires information on an existence probability of the region of interest on the basis of the input image. The processing circuitry calculates an estimated value of a shape of the region of interest on the basis of the input image and the information on the existence probability.Type: ApplicationFiled: March 28, 2023Publication date: October 5, 2023Applicants: Canon Kabushiki Kaisha, CANON MEDICAL SYSTEMS CORPORATIONInventors: Yukiteru MASUDA, Ryo ISHIKAWA, Toru TANAKA, Gakuto AOYAMA
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Publication number: 20230314459Abstract: According to one embodiment, an automatic analyzer includes: a plurality of reaction tube holders each configured to hold a reaction tube housing a mixed solution of a specimen and a reagent; a plurality of photometry portions respectively provided with respect to the reaction tube holders and each configured to perform photometry on the mixed solution housed in the reaction tube; a reaction bath including the reaction tube holders and the photometry portions and configured to repeat rotating and stopping to thereby convey the reaction tube held by each of the reaction tube holders; and a driver configured to rotate the reaction bath.Type: ApplicationFiled: March 28, 2023Publication date: October 5, 2023Applicant: Canon Medical Systems CorporationInventors: Tetsushi YAMAMOTO, Shigeyuki TASHIRO, Yoshitaka IZAWA, Hiroo SHINOHARA
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Publication number: 20230312966Abstract: The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, ?-alanine, proline and ?-aminobutyric acid. The pre-treatment liquid is non-yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Applicant: Canon Production Printing Holding B.V.Inventors: Guido G. WILLEMS, Jeroen A. SCHELL
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Publication number: 20230314542Abstract: A data processing apparatus includes processing circuitry configured to: acquire data that are based on a magnetic resonance signal acquired from a specific region of an object, the data being acquired for detecting a chemical shift of substance; and perform relation calculation between a designated chemical shift arbitrarily designated in a predetermined range of the chemical shift and displacement amount of a position of the specific region displaced due to the designated chemical shift, as position correction data.Type: ApplicationFiled: March 29, 2023Publication date: October 5, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Hidenori TAKESHIMA
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Publication number: 20230309941Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry acquires correspondence information, based on 3D medical image data of an object, that corresponds a blood vessel to information on a dominant area of the blood vessel in a region of the object. The processing circuitry acquires a plurality of X-ray images each including the blood vessel that are collected at different time phases on the object. The processing circuitry identifies, based on the plurality of X-ray images, a flow changed vessel in which blood flow has changed between the different time phases. The processing circuitry performs registration between the flow changed vessel and the 3D medical image data. The processing circuitry estimates information on the dominant area corresponding to the flow changed vessel based on registration results and the acquired correspondence information.Type: ApplicationFiled: March 24, 2023Publication date: October 5, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Saki HASHIMOTO, Kazuo IMAGAWA, Yoshiteru KOBAYASHI, Yuichiro WATANABE, Takuya AIDA
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Publication number: 20230314537Abstract: In one embodiment, a receiving coil includes at least one coil element that can simultaneously receive a plurality of magnetic resonance signals having different frequencies, wherein a resonance structure for the different frequencies is provided in a single plane in each of the at least one coil element.Type: ApplicationFiled: March 28, 2023Publication date: October 5, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Takafumi OHISHI, Sadanori TOMIHA
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Publication number: 20230305086Abstract: A medical image diagnosis apparatus according to an embodiment includes movable member which moves in a bore along the central axis of the bore formed in a gantry provided with a medical imaging mechanism concerning imaging a subject, couchtop which inserts into the bore, screen provided for the member and having a picture from a projector projected thereon, first frame connected to the member and positioned on the projector side for the screen, a second frame supporting a reflection board and being movable along the first frame, and processing circuitry which estimates a posture of the examined subject based on one of the position of the reflection board concerning the screen and the orientation of the head of the examined subject, determines a rotation amount of the picture on the basis of the posture, and controls the projector so as to rotate the picture according to the rotation amount.Type: ApplicationFiled: March 20, 2023Publication date: September 28, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Daiki TAKEUCHI
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Publication number: 20230301597Abstract: A patient couch for use in a medical imaging system that includes a gantry, a power supply unit and a driving unit for positioning the patient couch with respect to the gantry. The patient couch includes at least a first connector for supplying a wireless coil (e.g., a radio frequency (RF) coil for an MRI imaging apparatus) with power. The patient couch is detachably connected to the gantry. The power supply is configured to supply the first connector with power and an optional clock synchronization signal.Type: ApplicationFiled: March 22, 2022Publication date: September 28, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Mark SPRING, Yoshinori HAMAMURA, Kazuya OKAMOTO, Sojiyuuro KATO, Kazuyuki SOEJIMA
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Publication number: 20230307114Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry estimates a prognosis of a treatment target on the basis of treatment conditions to be applied to the treatment target. The processing circuitry outputs the estimated prognosis of the treatment target via an output interface.Type: ApplicationFiled: March 23, 2023Publication date: September 28, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Yohei KAMINAGA
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Publication number: 20230293121Abstract: A radiation diagnostic apparatus according to an embodiment includes plural radiation detection elements and a processing circuitry. The radiation detection elements are arranged in a two-dimensional direction. The processing circuitry determines, based on a first output relating to a first detection element included in the radiation elements and a second output relating to a second detection element, an ideal output relating to the first detection element when it is assumed that a surface at which a radiation first arrives on the first detection element is an incident position of the radiation.Type: ApplicationFiled: March 6, 2023Publication date: September 21, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Akihiro ISHIDA
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Publication number: 20230293133Abstract: The X-ray diagnostic apparatus according to any of embodiments includes an X-ray tube, an X-ray detector and processing circuitry. The X-ray tube is configured to irradiate an imaging region of a subject with X-rays. The X-ray detector is configured to detect the X-rays. The processing circuitry is configured to acquire an incident angle of the X-rays corresponding to a clinical purpose of the imaging region, and acquire image data from an image sensor that images the imaging region. The processing circuitry is configured to rotate the X-ray tube in accordance with the acquired incident angle of the X-rays, and slide a position of a central path of the X-rays with respect to the imaging region based on the image data.Type: ApplicationFiled: March 6, 2023Publication date: September 21, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Junji MASAHASHI, Katsunori KOJIMA, Norio SOUTSUKA, Tsutomu ICHIKAWA, Tatsuaki KODAKA, Shoji YASHIRO, Tamotsu INO
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Publication number: 20230296706Abstract: A radio frequency coil apparatus according to an embodiment is a radio frequency coil apparatus to be disposed in a bore of a magnetic resonance imaging apparatus and including processing circuitry. The processing circuitry acquires a nuclear magnetic resonance signal generated from a subject placed in the bore. The processing circuitry supplies voltage to a constituent component of the radio frequency coil apparatus by using a switching regulator and a linear regulator. The processing circuitry selectively drives the switching regulator and the linear regulator based on an imaging sequence of the magnetic resonance imaging apparatus. The processing circuitry drives the linear regulator in a first duration including a duration in which the nuclear magnetic resonance signal is acquired, and drives the switching regulator in a second duration other than the first duration.Type: ApplicationFiled: March 9, 2023Publication date: September 21, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Yu TANAKA
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Publication number: 20230284992Abstract: An X-ray diagnosis apparatus according to the present embodiment comprises: an imager configured to image by irradiating X-ray to a subject to acquire a captured image by X-ray imaging and a fluoroscopic image by fluoroscope imaging; and processing circuitry configured to acquire imaging related information obtained within a certain period of time before or after the X-ray imaging, and store in a memory the fluoroscopic image captured at least one of before or after the X-ray imaging based on the imaging related information.Type: ApplicationFiled: March 10, 2023Publication date: September 14, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yusuke OKUMURA, Haruki IWAI, Motohiro SATO
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Publication number: 20230284984Abstract: A positron emission tomography (PET) apparatus includes a plurality of PET detector rings and processing circuitry. The PET detector rings are movable relative to a table top on which a subject is to be laid, in an axial direction of a bore into which the table top is to be inserted. The processing circuitry is configured to obtain position information of each of the plurality of PET detector rings in the axial direction, generate display information representing positions of the plurality of PET detector rings, based on the position information, and display the display information on a display.Type: ApplicationFiled: February 6, 2023Publication date: September 14, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Kanji Watanabe
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Publication number: 20230284997Abstract: A method, apparatus, and computer-readable storage medium for controlling exposure/irradiation during a main three-dimensional X-ray imaging scan using at least one spatially-distributed characteristic of a pre-scan/scout scan preceding the main scan. The at least one spatially-distributed characteristic includes (1) a spatially-distributed noise characteristic of the pre-scan and/or (2) a spatially-distributed identification of exposure-sensitive tissue types. The at least one spatially-distributed characteristic can be calculated from images reconstructed from sinogram/projection data and/or from sinogram/projection directly using a neural network.Type: ApplicationFiled: March 11, 2022Publication date: September 14, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Ting XIA, Liang CAI, Jian ZHOU, Zhou YU
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Publication number: 20230284995Abstract: The present disclosure relates to a method and apparatus correcting a metal artifact in magnetic resonance imaging (MRI) data. The method and apparatus acquire plural slices along a slice direction of a scanned region associated with a body part, estimate a spatial extent of a signal dispersion of the acquired plural slices along the slice direction, and combine the signal of the acquired plural slices along the slice direction based on the estimated spatial extent of the signal dispersion to generate a reconstructed image of the scanned region.Type: ApplicationFiled: March 9, 2022Publication date: September 14, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Samir Dev SHARMA
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Publication number: 20230286768Abstract: To prevent deformation to relatively stiffer sheets during flipping, while ensuring reliable holding of relatively weaker sheets, a method for stacking sheets received from a printer by a sheet flipping device includes at least one slot for receiving a leading portion of a sheet. The method includes determining a respective insertion depth parameter for a first and a second sheet, wherein the second sheet has a greater stiffness than the first sheet; inserting a length of the first sheet into the at least one slot in correspondence with its respective insertion depth parameter, followed by flipping said first sheet; inserting a length (D2) of the second sheet into the at least one slot in correspondence with its respective insertion depth parameter, followed by flipping said second sheet, wherein the inserted length of the first sheet is greater than that of the second sheet.Type: ApplicationFiled: March 1, 2023Publication date: September 14, 2023Applicant: Canon Production Printing Holding B.V.Inventors: Christopher J. BORCHERT, Peter J. W. VAN DONGEN, Hermanus M. KUYPERS
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Publication number: 20230289964Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires an input image, infers a first region image about a first region included in the input image, generates a corrected image with the first region corrected from the first region image, and performs inference about a second region included in the input image based on the input image and the corrected image.Type: ApplicationFiled: March 9, 2023Publication date: September 14, 2023Applicants: Canon Kabushiki Kaisha, CANON MEDICAL SYSTEMS CORPORATIONInventors: Yuta NARUKIYO, Fukashi YAMAZAKI
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Publication number: 20230288506Abstract: In one embodiment, an MRI apparatus includes: an RF coil configured to apply a radio frequency (RF) signal of a Larmor frequency of a spin species in an object; and an amplifying apparatus configured to amplify the RF signal and supply the amplified RF signal to an output that is connectable to a load (80) that includes at least the RF coil and the object, wherein: the amplifying apparatus includes two amplification circuits provided in parallel and an impedance transformation circuit; and the impedance transformation circuit is provided between the load and an output terminal of one of the two amplification circuits such that a polarity of reactance as viewed from an output terminal of one of the two amplification circuits toward the load is opposite to a polarity of reactance as viewed from an output terminal of another of the two amplification circuits toward the load.Type: ApplicationFiled: March 3, 2023Publication date: September 14, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Kosuke HAYASHI, Mitsuyuki MURAKAMI, Aoi SAKAMITSU, Hirofumi YAMAKI
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Publication number: 20230288583Abstract: According to one embodiment, the radiation detection panel includes a photo-electric conversion substrate including a plurality of photo-electric conversion sections, a scintillator layer provided on the photo-electric conversion substrate, and a moisture-proof cover. The moisture-proof cover sandwiches the scintillator layer together with the photo-electric conversion substrate and covers the scintillator layer. The moisture-proof cover is formed of glass.Type: ApplicationFiled: May 17, 2023Publication date: September 14, 2023Applicant: CANON ELECTRON TUBES & DEVICES CO., LTD.Inventors: Masaya NAGAI, Hiroshi AIDA
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Publication number: 20230290486Abstract: A medical information processing device of an embodiment includes processing circuitry. The processing circuitry is configured to automatically select and execute an application to be executed on a medical image to be processed from among a plurality of applications on the basis of predetermined reference information, compare first information indicating execution conditions for each of the plurality of applications included in the reference information with second information indicating an imaging condition for the medical image, and cause a display to display a list of applications that have not been executed among the plurality of applications and a result of comparison between the first information and the second information.Type: ApplicationFiled: March 8, 2023Publication date: September 14, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Taisuke IWAMURA, Junichi TAKAZAWA, Yuki MATSUMOTO, Satoshi SUGISAWA
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Publication number: 20230277082Abstract: A permanent current switch apparatus according to an embodiment is a permanent current switch apparatus electrically connected to a superconducting coil via a superconducting wire, the permanent current switch apparatus including a plurality of parallel structures with thermal permanent current switches connected in parallel, the thermal permanent current switches being capable of switching between conducting and interrupting an electric current flowing through the superconducting wire. The parallel structures are connected in series.Type: ApplicationFiled: February 2, 2023Publication date: September 7, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Toshiki IDEMARU, Dai YAMASHIRO, Kazuto NOGAMI
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Publication number: 20230281838Abstract: A medical image processing apparatus includes processing circuitry.Type: ApplicationFiled: March 1, 2023Publication date: September 7, 2023Applicants: CANON MEDICAL SYSTEMS CORPORATION, FUJITA ACADEMYInventors: Yoshiharu OHNO, Kota AOYAGI, Hitoshi YAMAGATA
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Publication number: 20230280426Abstract: A method includes: calculating a first optimum quantity of ferromagnetic arranged at each position so that each error component of a magnetic field distribution in a specific space satisfies a first restriction condition (S33, S34); discretizing, for each position, the first optimum quantity (S35); calculating the error components that are obtained when ferromagnetic having a quantity of the first combination is arranged at each position (S36); when the error component is less than the first lower limit, setting a condition including a lower limit greater than the first lower limit and an upper limit greater than the first upper limit as a second restriction condition, and when the error component is greater than the first upper limit, setting a condition including a lower limit less than the first lower limit and an upper limit less than the first upper limit as a second restriction condition (S38).Type: ApplicationFiled: February 21, 2023Publication date: September 7, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Hajime TANABE
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Publication number: 20230277072Abstract: A medical image diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured: to obtain scan data generated by scanning an examined subject; to obtain pulse wave information of the examined subject, along with the scan; and to perform image reconstruction corresponding to electrocardiogram synchronization of the examined subject, by using the pulse wave information and the scan data.Type: ApplicationFiled: February 17, 2023Publication date: September 7, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Manabu TESHIGAWARA
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Publication number: 20230271414Abstract: A method of ink jet printing using an ink jet imaging device including a plurality of nozzles arranged for expelling droplets of an ink by actuation of an ink channel includes the steps of: a) providing a bit map of a spit pattern comprising an arrangement of refresh dots to be printed by each of the plurality of nozzles; and d) printing the bitmap of the spit pattern. The spit pattern includes a plurality of clusters of refresh dots, each cluster including at least two sequential refresh dots expelled from a single nozzle. A spit pattern for use in such a method is disclosed.Type: ApplicationFiled: April 17, 2023Publication date: August 31, 2023Applicant: Canon Production Printing Holding B.V.Inventors: Albertine P. WIJNHEIJMER, Bart TEUSSINK, Johannes A.T. GOLLATZ, Jacques J.M. GERAETS, Gerhardus R.B. LEUS
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Publication number: 20230270398Abstract: A medical system according to an embodiment is a system in which at least one medical image diagnosis apparatus and a server are connected via a network and the medical system includes a storage circuit, a processing circuit, and a display circuit. The storage circuit stores information on examinations that are performed by the at least one medical image diagnosis apparatus. The processing circuit generates proposal information based on information on the examinations. The display circuit displays the proposal information.Type: ApplicationFiled: May 5, 2023Publication date: August 31, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Keisuke OISHI
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Publication number: 20230274473Abstract: A projection dataset from a cone beam computed tomography (CBCT) can be input into a first set of one or more neural networks trained for at least one of saturation correction, truncation correction, and scatter correction. Reconstruction can then be performed on the output projection dataset to produce an image dataset. Thereafter, this image dataset can be input into a second set of one or more neural networks trained for at least one of noise reduction and artefact reduction, thereby generating a higher quality CBCT image.Type: ApplicationFiled: February 25, 2022Publication date: August 31, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Rui HUA, Komal DUTTA, Joseph MANAK, Yi HU, Yubing CHANG, Yujie LU, John BAUMGART
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Publication number: 20230263422Abstract: According to one embodiment, a data processing apparatus includes processing circuitry. The processing circuitry generates two or more magnetic resonance spectroscopy (MRS) pulse sequences in which different frequency bands are selected as suppression targets. The processing circuitry obtains multiple MRS signals acquired by the two or more MRS pulse sequences. The processing circuitry estimates a relative amount of each molecule included in a measurement target region from the MRS signals, based on a co-occurrence of a frequency profile that depends on a molecule type.Type: ApplicationFiled: February 14, 2023Publication date: August 24, 2023Applicant: Canon Medical Systems CorporationInventor: Hidenori TAKESHIMA
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Publication number: 20230263499Abstract: A method and a system for providing calibration for a polychromatic photon counting detector forward counting model. Measurements with multiple materials and known path lengths are used to calibrate the photon counting detector counting response of the forward model. The flux independent weighted bin response function is estimated using the expectation maximization method, and then used to estimate the pileup correction terms at plural tube voltage settings for each detector pixel. The beam hardening corrections are then applied to the measured projection data sinogram, and the corrected sinogram is reconstructed to the counting image at the selected single energy.Type: ApplicationFiled: April 25, 2023Publication date: August 24, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Xiaohui ZHAN, Xiaofeng NIU, Ilmar HEIN
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Publication number: 20230268077Abstract: A medical information processing device according to an embodiment includes processing circuitry. The processing circuitry is configured to acquire first risk information regarding a first disease of a subject, and acquire second risk information regarding a second disease different from the first disease when the acquired first risk information satisfies a condition based on a second threshold value which is less than a first threshold value related to treatment determination of the first disease and is greater than a normal range.Type: ApplicationFiled: February 8, 2023Publication date: August 24, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Ryo HIRANO
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Publication number: 20230260088Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry calculates noise intensity from first data acquired during a first scan. The processing circuitry calculates a denoising intensity used for a denoising process based on the noise intensity and the difference between an imaging condition for the first scan and an imaging condition for a second scan, the denoising process being applied to second data obtained by the second scan.Type: ApplicationFiled: April 20, 2023Publication date: August 17, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hiroshi TAKAI, Kensuke SHINODA, Nobuyuki KONUMA, Masahito NAMBU
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Publication number: 20230258681Abstract: According to one embodiment, an automatic analyzer includes a holding unit configured to hold a measurement sheet having a roll shape, the measurement sheet including a measurement section where a sample dispensed at a dispensing position is measured; a conveyance unit configured to convey the measurement sheet to the dispensing position and a measurement position where measurement is performed on the sample; and a measurement unit configured to move to the measurement position and measure a material property value of the sample.Type: ApplicationFiled: October 27, 2022Publication date: August 17, 2023Applicant: Canon Medical Systems CorporationInventor: Shozo HASHIMOTO
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Publication number: 20230260653Abstract: A medical information processing apparatus according to an embodiment includes a processing circuitry. The processing circuitry acquires an examination value of a biomarker collected from an examination target subject; determines a first disease type based on an inference result of a first trained model, the inference result being obtained by inputting the acquired examination value to the first trained model, the first trained model being configured to infer the first disease type of an affected disease upon inputting of the examination value; receives input of an examination result related to the first disease type of the subject and obtained through examination; and determines, when the examination result of the subject defies the first disease type, a second disease type of the disease with which the subject is potentially affected by using a second trained model in accordance with the defied first disease type.Type: ApplicationFiled: February 13, 2023Publication date: August 17, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Kohei WATANABE, Kei MORI, Tomoki FUJITO
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Publication number: 20230260119Abstract: An image processing apparatus according to an embodiment includes a processor. The processor acquires medical image data. The processor estimates the structure of a target organ depicted in the medical image data. The processor determines, for each region of the target organ, the degree of certainty representing the accuracy of the estimation result of the structure of the target organ depicted in the medical image data. The processor causes at least information indicating whether user's editing based on the degree of certainty is necessary or information representing a region where user's editing is restricted to be displayed on a display image based on the medical image data.Type: ApplicationFiled: February 16, 2023Publication date: August 17, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Gakuya SOEDA, Takahiko NISHIOKA
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Publication number: 20230255507Abstract: A magnetic resonance imaging apparatus includes sequence controlling circuitry configured: to obtain, during a time period after excitation of a first nuclide in a hyperpolarized state but no later than before obtainment of a first magnetic resonance signal from the first nuclide, a second magnetic resonance signal from a second nuclide that is different from the first nuclide and is in a non-hyperpolarized state, by exciting the second nuclide; and to control each of gradient magnetic field waveforms so as to cause both a first sum indicating a sum of application amounts of a gradient magnetic field related to the excitation of the second nuclide and a second sum indicating a sum of application amounts of a gradient magnetic field related to the obtainment of the second magnetic resonance signal to be close to zero, no later than before the obtainment of the first magnetic resonance signal.Type: ApplicationFiled: February 8, 2023Publication date: August 17, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Ryohei TAKAYANAGI, Takaya MORI, Kagami FUJITA, Akihiro TAGUCHI, Masao YUI
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Publication number: 20230260171Abstract: Upon receiving list-mode data by detecting radiation emitted from a radiation source positioned with a field of view of a medical imaging scanner, each photon included in the list-mode data can be classified according to one or more interaction properties, such as energy or number of crystals interacted with. Grouped pairs of photons can be generated based on the classifying, and a corresponding interaction-property-specific correction kernel (e.g., a corresponding interaction-property-specific point spread function correction kernel) can be selected for each group. Corresponding interaction-property-specific correction kernels can then be utilized to generate higher quality images.Type: ApplicationFiled: February 17, 2022Publication date: August 17, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Wenyuan QI, Qiang YI, Evren ASMA, Li YANG, Peng PENG