Toshiba Medical Systems Corporation

Kabushiki Kaisha Toshiba

Canon Medical Systems Corporation

Other

Nippon Kayaku Kabushiki Kaisha

National Institutes for Quantum and Radiological Science and Technology

Canon Kabushiki Kaisha

Japan Science and Technology Corporation

Toyo Ink Sc Holdings Co., Ltd.

Toyo Ink Co., Ltd.

USA Instruments, Inc.

National Institute for Quantum and Radiological Science and Technology

Kazuya Okamoto

Yoshinori Hamamura

Manabu Ishii

Koji Akita

Hitoshi Yamagata

Takuzo Takayama

Sadanori Tomiha

Yoshio Machida

Kazuto Nakabayashi

Shinji Mitsui

Satoshi Aida

Takuji Suzuki

Katsuhiko Fujimoto

Mariko Shibata

Kazuyuki Soejima

Yoshiharu Ishibashi

Kensuke Shinoda

Hitoshi Kanazawa

Hiroshi Takai

Hidehiro Watanabe

Yuichi Yamashita

Takahiro Ishihara

Takahiro Sekiguchi

Kohei Adachi

Nobuyuki Konuma

Yasutoshi Ishihara

Sojuro Kato

Hideo Kasami

Taiga Yamaya

Shiroh Saitoh

Toshiyuki Nakanishi

Koichi Oshio

Mitsuo Takagi

Iwao Kanno

Takayuki Obata

Yoshimori Kassai

Masaaki Umeda

Mamoru Izumi

Masatoshi Hanawa

Haruki Nakamura

Miyuki Ota

Sojiyuuro Kato

Takuma Kawai

Kazuhiro Soma

Kozo Sato

Shigehide Kuhara

Masayuki Yokoyama

Yoshitomo Sakakura

Kazunori Kataoka

Takafumi Ohishi

Hiromitsu Takamori

Ryuichi Nanaumi

Hiroyuki Fujita

Masayuki Kitagawa

Yasuhisa Sakurai

Satoshi Imai

Kozo Satoh

Masaaki Yamanaka

Shigeto Fukushima

Masaru Ukai

Hiroki Motohashi

Kazuhisa Shimizu

Yasutake Yasuhara

Tsutomu Igarashi

Mark Spring

Hiroko Mashiba

Yoshiharu Ohiwa

Ryuji Uehara

Tomoko Akutsu

Megumi Machida

Hideaki Okami

Junichi Makita

A subject information acquisition apparatus, comprises: a signal generation unit configured to generate a high-frequency signal corresponding to each of the frequencies; an acquisition unit configured to acquire a plurality of detection signals based on at least one of a reflection signal and a transmission signal; a signal selection unit configured to select at least one detection signal from the plurality of detection signals based on an index value of the plurality of detection signals; a coupling amount detecting unit configured to detect a coupling amount of near-field coupling due to an electric field between the antenna and the subject based on a detection signal; and a displacement detecting unit configured to generate a displacement signal indicating a displacement of the subject based on the coupling amount.

Subject information acquisition apparatus, magnetic resonance imaging apparatus, subject information acquisition method, and storage medium

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.

Medical imaging apparatus including a gantry and a couch having built-in power connectors

According to one embodiment, a medical information processing apparatus includes processing circuitry configured to derive an index value with respect to noise included in data associated with magnetic resonance signals collected by each of a plurality of reception coils, adjust a degree to which noise is removed from the data associated with the magnetic resonance signals based on the derived index value, remove noise from the data associated with the magnetic resonance signals based on the adjusted degree, and perform compositing of the data associated with the magnetic resonance signals from which noise has been removed.

Medical information processing apparatus, medical information processing method, and storage medium

A medical image processing apparatus of embodiments includes processing circuitry. The processing circuitry is configured to acquire a data and a g-factor map. The data is generated as a result of a reception by an RF coil. The processing circuitry is configured to determine strength of denoise performed on the data on the basis of the g-factor map and perform the denoise on the data.

Medical information processing apparatus, magnetic resonance imaging apparatus, and medical information processing method

A rosin-modified phenol resin (A) is a reaction product of a rosin (b), a phenol (c), a formaldehyde (d) and a polyol (e), wherein the rosin (b) contains 0.1 to 3.5% by mass of a monoterpene (a1) and a sesquiterpene (a2) relative to the total weight of the rosin, and Mw/Mn which is the ratio of the weight average molecular weight (Mw) and the number average molecular weight (Mn) is 10 to 60.

Rosin-modified phenol resin, lithographic printing ink, and printed product

An array coil according to an embodiment includes a plurality of element coils, a first electrically-insulative coupler, and a second electrically-insulative coupler. Each of the plurality of element coils has a first fixation point and a second fixation point. The plurality of element coils are two-dimensionally arrayed in a first direction and a second direction while overlapping one another. The first electrically-insulative coupler is configured to couple together two or more of the first fixation points in the first direction. The second electrically-insulative coupler is configured to couple together two or more of the second fixation points in the first direction.

Array coil

A magnetic resonance imaging apparatus according to an embodiment includes a monitoring coil, a measuring device, and processing circuitry. The monitoring coil continuously transmits to a subject an electromagnetic wave having a monitoring frequency, and without touching the subject. The measuring device measures a change in the impedance related to the monitoring coil over time to thereby generate a biosignal of the subject. The processing circuitry is configured to determine the monitoring frequency that is higher than a frequency of a high-frequency magnetic field based on the information of the subject, and to controls a sequence related to the imaging based on the biosignal.

Magnetic resonance imaging apparatus

According to one embodiment, an MRI apparatus includes a power transmitting unit a signal receiving unit and an image reconstruction unit. The power transmitting unit wirelessly transmits electric power to an RF coil device by magnetically coupled resonant type wireless power transfer. The signal receiving unit wirelessly receives a digitized nuclear magnetic resonance signal wirelessly transmitted from the RF coil device. The image reconstruction unit obtains a nuclear magnetic resonance signal received by the signal receiving unit, and reconstructs image data of an object on the basis of the nuclear magnetic resonance signal.

Magnetic resonance imaging apparatus and RF coil device

A magnetic resonance imaging apparatus according to an embodiment includes a wireless communication unit, a radio frequency (RF) coil, and a specifying unit. The wireless communication unit includes an antenna and that transmits and receives a wireless signal through the antenna. The RF coil includes one or more antennas and that receives the wireless signal and to respond to the received wireless signal through the one or more antennas. The specifying unit that specifies the position and the orientation of the RF coil on the basis of a response result indicated by the response from the RF coil.

Magnetic resonance imaging apparatus including an RF coil with prescribed orientation

A magnetic resonance imaging apparatus according to an embodiment includes a receiver array coil structured with a plurality of receiver coils. Each of the receiver coils included in the receiver array coil includes a coil element, a first tuning element configured to tune a tunable frequency of the receiver coil to a desired frequency, and a series circuit including a switching element and a second tuning element and being connected in parallel with the first tuning element. The switching element is configured to disconnect the first tuning element and the second tuning element from each other at the time of transmitting and is configured to arrange the first tuning element and the second tuning element to be electrically conductive with each other at the time of receiving. At least two receiver coils positioned adjacent to each other among the plurality of receiver coils are decoupled from each other.

A PET-MRI apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a birdcage-type radio frequency coil, and at least one PET detector. The static magnetic field magnet is configured to generate a static magnetic field. The gradient coil is configured to apply a gradient magnetic field to a subject placed in the static magnetic field. The radio frequency coil includes two end rings and a plurality of rungs arranged at intervals along a circumferential direction of the end rings and is configured to transmit a radio frequency pulse or to receive a magnetic resonance signal from the subject. Further, the PET detector is housed inside a conductor structuring the rungs of the radio frequency coil.

PET-MRI apparatus and radio frequency coil

A magnetic resonance imaging apparatus according to an embodiment includes a radio frequency coil and a control signal transmitting unit. The radio frequency coil is that receives a magnetic resonance signal emitted from a patient as a result of an application of a radio frequency magnetic field thereto and to transmit the received magnetic resonance signal via a wireless communication. The control signal transmitting unit that transmits control information that collectively defines operations to be performed by the radio frequency coil during a predetermined repetition time period, to the radio frequency coil via a wireless communication, prior to the start of the operations performed during the predetermined repetition time period. Further, the radio frequency coil that receives the control information via a wireless communication and to perform the operations on the basis of the received control information.

Magnetic resonance imaging apparatus and radio frequency coil

In one embodiment, an MRI apparatus, which is wirelessly connected to a wireless RF coil equipped with a plurality of coil elements, includes memory circuitry configured to store at least one program and processing circuitry configured, by executing the at least one program, to (a) set an imaging region of an object, (b) identify a position of each of the plurality of coil elements included in the wireless RF coil based on a signal obtained by radio communication with the wireless RF coil, and (c) select at least one of the plurality of coil elements with respect to three axes, based on positional relationship between the imaging region and the position of each of the plurality of coil elements.

Growing community of inventors

Saitama, Japan

Kazuya Okamoto