Patents by Inventor Kazuo IMAGAWA
Kazuo IMAGAWA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11793477Abstract: A medical information processing apparatus of an embodiment includes an image acquiring unit, an event acquiring unit, a managing unit, and an output unit. The image acquiring unit sequentially acquires medical images during a treatment procedure for a subject. The event acquiring unit sequentially acquires events in the treatment procedure on the basis of the medical images during the treatment procedure. The managing unit manages the medical images and the events, in association with temporal information on the treatment procedure. The output unit outputs the medical images such that relations between the medical images and the events are able to be known.Type: GrantFiled: July 29, 2021Date of Patent: October 24, 2023Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Masaki Akiyama, Satoshi Yamashita, Kazuo Imagawa, Masashi Hirasawa, Tomukazu Ono, Mitsunobu Sugeno, Hisato Takemoto
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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: 20230070457Abstract: In one embodiment, a medical image processing apparatus includes: processing circuitry configured to extract 3D blood vessel data of an object from 3D image data of the object, detect a tip position of a medical device moving in a blood vessel in real time from a fluoroscopic image of the object inputted during an operation, and calculate at least one of a recommended route and a recommended direction of the medical device from the 3D blood vessel data, a rough route of the medical device, and the tip position of the medical device; and a terminal device configured to display a 3D blood vessel image of the object generated from the 3D blood vessel data and to designate the rough route of the medical device on the 3D blood vessel image.Type: ApplicationFiled: September 2, 2022Publication date: March 9, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yoshiteru KOBAYASHI, Yuichiro WATANABE, Kazuo IMAGAWA, Mika TAKAYA, Takuya AIDA, Saki HASHIMOTO
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Publication number: 20220031271Abstract: A medical information processing apparatus of an embodiment includes an image acquiring unit, an event acquiring unit, a managing unit, and an output unit. The image acquiring unit sequentially acquires medical images during a treatment procedure for a subject. The event acquiring unit sequentially acquires events in the treatment procedure on the basis of the medical images during the treatment procedure. The managing unit manages the medical images and the events, in association with temporal information on the treatment procedure. The output unit outputs the medical images such that relations between the medical images and the events are able to be known.Type: ApplicationFiled: July 29, 2021Publication date: February 3, 2022Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Masaki AKlYAMA, Satoshi YAMASHITA, Kazuo IMAGAWA, Masashi HIRASAWA, Tomukazu ONO, Mitsunobu SUGENO, Hisato TAKEMOTO
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Patent number: 11191504Abstract: According to one embodiment, an X-ray diagnosis apparatus includes an X-ray generator, an X-ray diaphragm, an X-ray detector, an image capturing unit, a blood vessel running information acquiring unit, a device position specifying unit, and a diaphragm controller. The X-ray generator emits X-rays. The X-ray diaphragm restricts a region to be irradiated with X-rays emitted from the X-ray generator. The X-ray detector detects X-rays emitted from the X-ray generator. The image capturing unit acquires an X-ray image based on a detection result obtained by the X-ray detector. The blood vessel running information acquiring unit acquires blood vessel running information. The device position specifying unit specifies the position of a device in the X-ray image. The diaphragm controller controls the X-ray diaphragm based on the blood vessel running information and the position of the device.Type: GrantFiled: July 30, 2019Date of Patent: December 7, 2021Assignee: Canon Medical Systems CorporationInventors: Kazuo Imagawa, Shingo Abe, Akihito Takahashi
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Patent number: 10893840Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a holding device and processing circuitry. The holding device movably holds an X-ray generator and an X-ray detector. The processing circuitry generates an X-ray image of the subject, based on an output of the X-ray detector. The processing circuitry sets an interference judgment region between the holding device and an interference object, based on a landmark in the X-ray image. The processing circuitry controls movement of the holding device, based on the set interference judgment region.Type: GrantFiled: November 3, 2017Date of Patent: January 19, 2021Assignee: Canon Medical Systems CorporationInventors: Kazuo Imagawa, Yoshiyasu Hayashi, Masahiro Ozawa, Ko Fuchigami
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Publication number: 20200037972Abstract: According to one embodiment, an X-ray diagnosis apparatus includes an X-ray generator, an X-ray diaphragm, an X-ray detector, an image capturing unit, a blood vessel running information acquiring unit, a device position specifying unit, and a diaphragm controller. The X-ray generator emits X-rays. The X-ray diaphragm restricts a region to be irradiated with X-rays emitted from the X-ray generator. The X-ray detector detects X-rays emitted from the X-ray generator. The image capturing unit acquires an X-ray image based on a detection result obtained by the X-ray detector. The blood vessel running information acquiring unit acquires blood vessel running information. The device position specifying unit specifies the position of a device in the X-ray image. The diaphragm controller controls the X-ray diaphragm based on the blood vessel running information and the position of the device.Type: ApplicationFiled: July 30, 2019Publication date: February 6, 2020Applicant: Canon Medical Systems CorporationInventors: KAZUO IMAGAWA, Shingo Abe, Akihito Takahashi
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Patent number: 10285660Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a support frame, an input button, and processing circuitry. The support frame supports an X-ray detector which detects X-rays. The input button provides on at least one of an exterior of the support frame and an exterior of the X-ray detector and inputs an instruction to implement an assigned moving operation pattern of a plurality of moving operation patterns concerning movement of at least one of the support frame, the X-ray detector, and a table top. The processing circuitry assigns the input button with an instruction to implement a moving operation pattern, of the plurality of moving operation patterns, which is selected by an operator.Type: GrantFiled: January 29, 2016Date of Patent: May 14, 2019Assignee: Toshiba Medical Systems CorporationInventors: Ryuji Zaiki, Hisayuki Uehara, Masashi Hirasawa, Kazuhiro Taniyama, Kazuo Imagawa, Katsuie Ikawa
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Patent number: 9986962Abstract: According to an embodiment, a medical image display apparatus is accessible to an external device that stores data of a plurality of X-ray images with different imaging angles, or includes a storage unit that stores the data of the plurality of X-ray images. The medical image display apparatus includes a display, a distance specifying unit, an image selector and a display controller. The distance specifying unit specifies a distance of a user to the display. The image selector selects, from the plurality of X-ray images, two X-ray images with an angular difference determined based on the distance of the user. The display controller displays the selected two X-ray images on the display for stereopsis by the user.Type: GrantFiled: April 21, 2015Date of Patent: June 5, 2018Assignee: Toshiba Medical Systems CorporationInventors: Kazuo Imagawa, Takuya Sakaguchi, Ryuji Zaiki
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Publication number: 20180125436Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a holding device and processing circuitry. The holding device movably holds an X-ray generator and an X-ray detector. The processing circuitry generates an X-ray image of the subject, based on an output of the X-ray detector. The processing circuitry sets an interference judgment region between the holding device and an interference object, based on a landmark in the X-ray image. The processing circuitry controls movement of the holding device, based on the set interference judgment region.Type: ApplicationFiled: November 3, 2017Publication date: May 10, 2018Applicant: Toshiba Medical Systems CorporationInventors: Kazuo IMAGAWA, Yoshiyasu HAYASHI, Masahiro OZAWA, Ko FUCHIGAMI
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Patent number: 9888898Abstract: The X-ray diagnostic apparatus includes an X-ray emitting device, an X-ray detection device, a fluoroscopic image generating unit, a calcified region detection unit and a display control unit. The fluoroscopic image generating unit generates a plurality of frames of fluoroscopic images of an object on a basis of detected X-rays in sequence. The calcified region detection unit detects a calcified region on each of the fluoroscopic images in sequence. The display control unit superimposes a calcified region image on a position of the calcified region on each of the fluoroscopic images in sequence, the calcified region image including a calcified region on a pre-acquired CT image or MR image of the object, and displays resulting images on a display device in sequence.Type: GrantFiled: March 17, 2015Date of Patent: February 13, 2018Assignee: Toshiba Medical Systems CorporationInventors: Kazuo Imagawa, Takuya Sakaguchi, Ryuji Zaiki
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Patent number: 9875539Abstract: A medical image processing apparatus includes, an unit (12) extracting a blood vessel wall region from the image in a range including an aneurysm in an object, an unit (13) calculating the blood vessel diameter change rates of the neck portions of the aneurysm, blood vessel curvature, and blood vessel flattening ratio at each of discrete points on a blood vessel region based on the extracted blood vessel region, an unit (14) extracting, from discrete points, feature points at each of which at least one of a blood vessel diameter change rate, blood vessel curvature, and blood vessel flattening ratio exceeds a corresponding one of thresholds and decide a range for the indwelling of a stent graft in accordance with the extracted feature points, and a display unit (19) superimposing and display unrecommended ranges on a stored image.Type: GrantFiled: September 6, 2016Date of Patent: January 23, 2018Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Kazuo Imagawa, Ryuji Zaiki, Takayuki Ishikawa, Masaki Kobayashi
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Patent number: 9526469Abstract: In an embodiment, an X-ray diagnostic apparatus includes an image capturing unit which captures an X-ray image of a subject on a tabletop, a movement mechanism which moves the tabletop and the image capturing unit relative to each other, an acquisition unit which acquires device position information on the tabletop and the image capturing unit in capturing the X-ray image, a display unit which displays the X-ray image captured by the image capturing unit, an input unit which inputs added information to be added to the X-ray image displayed on the display unit, and a management unit which manages the X-ray image captured by the image capturing unit, the device position information acquired by the acquisition unit, and the added information inputted by the input unit in association with one another.Type: GrantFiled: December 31, 2013Date of Patent: December 27, 2016Assignee: Toshiba Medical Systems CorporationInventors: Kazuo Imagawa, Masanori Matsumoto, Toshiya Waku, Keisuke Nakamura, Naotaka Sato
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Publication number: 20160371837Abstract: A medical image processing apparatus includes, an unit (12) extracting a blood vessel wall region from the image in a range including an aneurysm in an object, an unit (13) calculating the blood vessel diameter change rates of the neck portions of the aneurysm, blood vessel curvature, and blood vessel flattening ratio at each of discrete points on a blood vessel region based on the extracted blood vessel region, an unit (14) extracting, from discrete points, feature points at each of which at least one of a blood vessel diameter change rate, blood vessel curvature, and blood vessel flattening ratio exceeds a corresponding one of thresholds and decide a range for the indwelling of a stent graft in accordance with the extracted feature points, and a display unit (19) superimposing and display unrecommended ranges on a stored image.Type: ApplicationFiled: September 6, 2016Publication date: December 22, 2016Applicant: Toshiba Medical Systems CorporationInventors: Kazuo IMAGAWA, Ryuji ZAIKI, Takayuki ISHIKAWA, Masaki KOBAYASHI
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Patent number: 9462986Abstract: A medical image processing apparatus includes, an unit (12) extracting a blood vessel wall region from the image in a range including an aneurysm in an object, an unit (13) calculating the blood vessel diameter change rates of the neck portions of the aneurysm, blood vessel curvature, and blood vessel flattening ratio at each of discrete points on a blood vessel region based on the extracted blood vessel region, an unit (14) extracting, from discrete points, feature points at each of which at least one of a blood vessel diameter change rate, blood vessel curvature, and blood vessel flattening ratio exceeds a corresponding one of thresholds and decide a range for the indwelling of a stent graft in accordance with the extracted feature points, and a display unit (19) superimposing and display unrecommended ranges on a stored image.Type: GrantFiled: August 8, 2014Date of Patent: October 11, 2016Assignee: Toshiba Medical Systems CorporationInventors: Kazuo Imagawa, Ryuji Zaiki, Takayuki Ishikawa, Masaki Kobayashi
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Publication number: 20160220218Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a support frame, an input button, and processing circuitry. The support frame supports an X-ray detector which detects X-rays. The input button provides on at least one of an exterior of the support frame and an exterior of the X-ray detector and inputs an instruction to implement an assigned moving operation pattern of a plurality of moving operation patterns concerning movement of at least one of the support frame, the X-ray detector, and a table top. The processing circuitry assigns the input button with an instruction to implement a moving operation pattern, of the plurality of moving operation patterns, which is selected by an operator.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Ryuji ZAIKI, Hisayuki UEHARA, Masashi HIRASAWA, Kazuhiro TANIYAMA, Kazuo IMAGAWA, Katsuie IKAWA
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Publication number: 20150272529Abstract: The X-ray diagnostic apparatus includes an X-ray emitting device, an X-ray detection device, a fluoroscopic image generating unit, a calcified region detection unit and a display control unit. The fluoroscopic image generating unit generates a plurality of frames of fluoroscopic images of an object on a basis of detected X-rays in sequence. The calcified region detection unit detects a calcified region on each of the fluoroscopic images in sequence. The display control unit superimposes a calcified region image on a position of the calcified region on each of the fluoroscopic images in sequence, the calcified region image including a calcified region on a pre-acquired CT image or MR image of the object, and displays resulting images on a display device in sequence.Type: ApplicationFiled: March 17, 2015Publication date: October 1, 2015Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Kazuo IMAGAWA, Takuya SAKAGUCHI, Ryuji ZAIKI
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Publication number: 20150223769Abstract: According to an embodiment, a medical image display apparatus is accessible to an external device that stores data of a plurality of X-ray images with different imaging angles, or includes a storage unit that stores the data of the plurality of X-ray images. The medical image display apparatus includes a display, a distance specifying unit, an image selector and a display controller. The distance specifying unit specifies a distance of a user to the display. The image selector selects, from the plurality of X-ray images, two X-ray images with an angular difference determined based on the distance of the user. The display controller displays the selected two X-ray images on the display for stereopsis by the user.Type: ApplicationFiled: April 21, 2015Publication date: August 13, 2015Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Kazuo IMAGAWA, Takuya SAKAGUCHI, Ryuji ZAIKI
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Publication number: 20140350350Abstract: A medical image processing apparatus includes, an unit (12) extracting a blood vessel wall region from the image in a range including an aneurysm in an object, an unit (13) calculating the blood vessel diameter change rates of the neck portions of the aneurysm, blood vessel curvature, and blood vessel flattening ratio at each of discrete points on a blood vessel region based on the extracted blood vessel region, an unit (14) extracting, from discrete points, feature points at each of which at least one of a blood vessel diameter change rate, blood vessel curvature, and blood vessel flattening ratio exceeds a corresponding one of thresholds and decide a range for the indwelling of a stent graft in accordance with the extracted feature points, and a display unit (19) superimposing and display unrecommended ranges on a stored image.Type: ApplicationFiled: August 8, 2014Publication date: November 27, 2014Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Kazuo IMAGAWA, Ryuji ZAIKI, Takayuki ISHIKAWA, Masaki KOBAYASHI
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Publication number: 20140112444Abstract: In an embodiment, an X-ray diagnostic apparatus includes an image capturing unit which captures an X-ray image of a subject on a tabletop, a movement mechanism which moves the tabletop and the image capturing unit relative to each other, an acquisition unit which acquires device position information on the tabletop and the image capturing unit in capturing the X-ray image, a display unit which displays the X-ray image captured by the image capturing unit, an input unit which inputs added information to be added to the X-ray image displayed on the display unit, and a management unit which manages the X-ray image captured by the image capturing unit, the device position information acquired by the acquisition unit, and the added information inputted by the input unit in association with one another.Type: ApplicationFiled: December 31, 2013Publication date: April 24, 2014Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Kazuo IMAGAWA, Masanori Matsumoto, Toshiya Waku, Keisuke Nakamura, Naotaka Sato