Fujifilm Patente

A magnetic resonance imaging apparatus includes a superconducting magnet including a superconducting coil that is cooled to a normal temperature at which superconductivity is achieved, and a coil cooling device that cools the superconducting coil by heat conduction due to contact between a heat conduction member that is cooled via a cold head and the superconducting coil to cool the superconducting coil to the normal temperature. A processor of a magnetic resonance imaging system calculates an operable time point (excitation completion time point) at which the magnetic resonance imaging apparatus is able to start operating after demagnetization of the superconducting magnet is started based on a demagnetization start time point at which the superconducting magnet is demagnetized and a design value of the magnetic resonance imaging apparatus, displays an excitation completion time point on an operation screen 250-1 of a display, and notifies an operator of the operable time point.

Provided are a radiation detection device and a CT apparatus capable of efficiently performing cooling while suppressing complexity of a structure.A radiation detection device according to the present disclosure is divided into a plurality of compartments and includes, in each of the plurality of compartments, a detector module that detects radiation, a heat sink that is attached to the detector module, an intake port and an exhaust port that are disposed on the same side with respect to the heat sink, a separation plate that is provided between the intake port and the exhaust port and separates intake and exhaust, and an exhaust fan that is attached to the exhaust port, in which the heat sink has a plurality of fins that extend along a flow path of air exhausted from the exhaust port.

Provided are an imaging support apparatus, a method of operating an imaging support apparatus, a program, and a magnetic resonance imaging apparatus that provide a user interface that is easy for a user to use in a case in which a position of a landmark is manually adjusted. An imaging support apparatus acquires three-dimensional data of a heart acquired in scanogram imaging, detects a landmark of the heart from the three-dimensional data, calculates a plurality of cross sections to be applied to imaging of the heart based on a position of the landmark, generates cross-sectional images appearing in the plurality of cross sections, displays the plurality of cross-sectional images, and displays a first movement element representing the position of the landmark in a plane of the respective cross-sectional images and a second movement element representing the position of the landmark in a depth direction of the respective cross-sectional images.

Provided are a medical support device, a medical support method, and a medical support program that can support an operation of an ultrasound probe.A medical support device (11) includes: a processor, in which the processor is configured to acquire a surgical field image (21) captured by a camera (13B), the surgical field image (21) showing a state in which a surgical field is being scanned with an ultrasound probe (14), derive orientation information of the ultrasound probe (14) based on the surgical field image (21), and adjust a display mode of an ultrasound image (22) captured by the ultrasound probe (14) based on the orientation information.

An object of the present invention is to estimate, from a cooling performance of a cryocooler in a normal state, whether the cryocooler has cooling performance that enables re-excitation, thereby improving rapidity and reliability of preventing a quench from occurring, and even in a state in which refrigeration performance of the cryocooler is deteriorated in an imaging apparatus such as an MRI apparatus is reduced, to prevent a quench from occurring in advance, and to shorten a time until re-driving and re-imaging. A superconducting coil device includes a superconducting coil housed in a container, at least one cryocooler that is thermally connected to the superconducting coil and cools the superconducting coil, and a processor that inputs temperature information of the superconducting coil detected by a temperature sensor installed in the container and issues a notification to a user. The processor stores a temperature equal to or lower than an excitation-allowable temperature at which excitation of the superconducting coil is allowable as an excitation warning temperature, and issues notification information such as information on cryocooler replacement in a case in which the temperature of the superconducting coil detected by the temperature sensor exceeds the excitation warning temperature for a predetermined time or longer.

Provided are an electroforming master plate that can be used repeatedly more than in the related art, a manufacturing method for an electroforming master plate, and an electroformed product. Provided are an electroforming master plate including a substrate, a conductive layer provided on a surface of the substrate, an insulating mask pattern provided on the substrate or the conductive layer, and an adhesion control layer provided on a region of the conductive layer in which the insulating mask pattern is not provided, in which the adhesion control layer is a porous film formed of an insulating material and has a thickness of 1 nm to 50 nm, the thickness being thinner than a thickness of the insulating mask pattern, manufacturing method of the same, and an electroformed product.

Provided are a medical support device (11), a medical support method, and a medical support program that can improve general-purpose properties in a case of estimating a position and an orientation of a medical instrument. A medical support device (11) includes a processor (41), in which the processor (41) is configured to acquire, at a first time point (t1), a surgical field image (21) obtained by imaging, with a camera, a surgical field including a first medical instrument to which a marker is assigned, identify, based on the marker included in the surgical field image (21), first position and orientation information indicating a position and an orientation of the first medical instrument, the first position and orientation information being information at the first time point (t1), acquire second position and orientation information indicating a position and an orientation of a second medical instrument connected to the first medical instrument, the second position and orientation information being information at the first time point (t1) and a second time point (t2), derive a relative positional relationship between the first medical instrument and the second medical instrument based on the first position and orientation information and the second position and orientation information at the first time point (t1), and estimate the first position and orientation information at the second time point (t2) based on the relative positional relationship and the second position and orientation information at the second time point (t2).

Provided are an ultrasound diagnostic apparatus and a control method for an ultrasound diagnostic apparatus that can easily and quickly calculate cardiac output.An ultrasound diagnostic apparatus includes an image classification unit that classifies whether an input image is an ultrasound image obtained by imaging the first cross section or the second cross section, a first measurement unit that measures a cross-sectional area of a left ventricular outflow tract based on the input image in a case where the input image is classified as the ultrasound image obtained by imaging the first cross section, a second measurement unit that measures a velocity-time integral of a left ventricular outflow tract blood flow based on the input image in a case where the input image is classified as the ultrasound image obtained by imaging the second cross section, and a cardiac output calculation unit that calculates cardiac output using the cross-sectional area and the velocity-time integral.

Provided are a medical image processing device (32) that reduces a burden on a user such as a doctor or a nurse during calibration, and a method of operating the same. An image acquisition unit (34) acquires an image. A mode controller (35) switches to a calibration mode in a case where the mode controller (35) recognizes, from the image, a pattern (20, 22) used for correcting the image. The mode controller (35) switches from the calibration mode to a normal mode in a case where a release condition related to the correction is satisfied. The release condition is that an evaluation of the correction is appropriate.

Provided is a technique of suppressing an extension of an imaging time and performing high-accuracy N/2 ghost correction in imaging in which a signal is collected by EPI. A one-shot pre-scan in which a blip-shaped phase-encoding gradient magnetic field is executed alternately in an EPI sequence is performed to generate N/2 ghost-free data having different polarities, and pseudo N/2 ghost data is created from the N/2 ghost-free data. A correction kernel based on a signal of a measurement point to be corrected and signals of measurement points on an even line and an odd line around the measurement point is calculated using the pseudo N/2 ghost data. The main scan data is corrected using the correction kernel with respect to the signals of the measurement point to be corrected and the measurement points on the even line and the odd line around the measurement point.

An aspect of the present invention provides a blanket-type coil unit that can easily match a body shape of a subject (99) and improve closeness between a coil and the subject (99), and a coil system (10) using the coil unit. A blanket-type coil unit according to an aspect of the present invention is a flexible blanket-type coil unit that is wound around a subject (99) in a case of acquiring a magnetic resonance image, in which one set of first slits is provided at facing positions. This aspect can be modified in various ways. In addition, a coil system (10) according to another aspect of the present invention includes the blanket-type coil unit according to the aspect of the present invention and a fixing assist member (150) that is attachable to and detachable from the blanket-type coil unit and that fixes the blanket-type coil unit in a state of being wound around a subject (99).

An aspect of the present invention provides a blanket-type coil unit that can easily match a body shape of a subject (99) and improve closeness between a coil and the subject, and a coil system using the coil unit. A blanket-type coil unit according to an aspect of the present invention is used by being wound around a subject (99) in a case of acquiring a magnetic resonance image, the blanket-type coil unit comprising: at least one first slit (102) provided on at least one side; and fixing members (104, 106) provided on both sides of the first slit (102), in which the fixing members on one side of the first slit are fixed to the fixing members on the other side of the first slit, so that the blanket-type coil unit is deformed into a curved surface (C1, C2) shape in at least a vicinity of the first slit (102).

A medical examination table (20) includes a fixing belt (31) and an elevating mechanism. The fixing belt (31) includes a first belt extending from a first side portion that is a side portion on one side of a placement portion in the lateral direction, and, a second belt extending from a second side portion that is a side portion on the other side of the placement portion, and fixes the subject on the placement portion by joining the first belt and the second belt. The elevating mechanism is provided at a first side portion side of the placement portion, and includes a first connecting portion to which the first belt is connected, and a second connecting portion (43L) to which the second belt is connected, and elevates a part of the first belt when pulling the second belt and lowers the part of the first belt when loosening the second belt.

A receive coil device (200) includes: receive coils (220) that are disposed in a lattice pattern in a bag-shaped planar cover (210), and that receive the nuclear magnetic resonance signal; a heat generating element (230) provided in each of the receive coils; heat insulating materials (240) that are disposed to sandwich each heat generating element, that reduce heat transfer from each heat generating element in a down direction toward a subject and heat transfer in an up direction, and that can dissipate heat from each heat generating element in a peripheral direction other than the down direction and the up direction; and a first air-permeable material that is laid in a space in the planar cover other than the heat generating element and the heat insulating materials, and that releases heat dissipated from the heat generating element in the peripheral direction and heat generated from the subject to an external space.

A coil system (10) that can easily perform a fixing operation and can increase a degree of close contact between a coil unit (100, 130) and a subject (99). The coil system (10) includes a flexible blanket-type coil unit (100, 130) that is wound around a subject (99) when acquiring a magnetic resonance image, and a fixing auxiliary member (110L, 110R, 120, 120L, 120R, 121) that is attachable to and detachable from the blanket-type coil unit (100, 130) and that is used for fixing the blanket-type coil unit (100, 130) in a state where the blanket-type coil unit (100, 130) is wound around the subject (99), in which the blanket-type coil unit (100, 130) is provided with a first fixing member (100A, 100B, 100C, 100D) for connection to the fixing auxiliary member (110L, 110R, 120, 120L, 120R, 121), the fixing auxiliary member (110L, 110R, 120, 120L, 120R, 121) is provided with a second fixing member (110A, 110B, 110C, 110D, 120A, 120B, 120C, 120D) for connection to the blanket-type coil unit (100, 130), and the blanket-type coil unit (100, 130) and the fixing auxiliary member (110L, 110R, 120, 120L, 120R, 121) are fixed to each other by fixing the first fixing member (100A, 100B, 100C, 100D) and the second fixing member (110A, 110B, 110C, 110D, 120A, 120B, 120C, 120D).

Provided are an information processing apparatus (12), an information processing method, and a program that enable high-accuracy removal of an artifact from an energy difference image. An information processing apparatus according to the present disclosure includes a processor (40), in which the processor is configured to acquire a low-energy image captured by irradiating a subject (M) into which a contrast agent has been injected with radiation having a first energy, and a high-energy image captured by irradiating the subject with radiation having a second energy higher than the first energy, generate an initial energy difference image by performing difference processing on the low-energy image and the high-energy image, extract an artifact component (N1-N3) from the initial energy difference image; and generate an energy difference image by performing the difference processing again based on the artifact component.

A processor is configured to provide a first function of performing radiography and bone density measurement of a subject for a purpose of the bone density measurement, and a second function of performing the bone density measurement in an assistive manner for a purpose of general imaging of the subject, and switch between the first function and the second function.

To support specifying a position of a tissue of interest in a living body. In a past ultrasound examination, a processor generates a reference image including a body mark image and a probe mark, and also registers position information indicating a position of a tissue of interest in a living body. In a current ultrasound examination, the processor generates a second reference image that includes a body mark, a probe mark, and a pointer. The processor determines a display position of the pointer with respect to the probe mark based on the registered position information.

Provided are a medical support device, a medical support method, and a medical support program capable of supporting understanding a spatial configuration of a surgical field.A medical support device (11) includes a processor (41), in which the processor (41) is configured to acquire a surgical field image (21) obtained by capturing a surgical field (SF) with a camera (13B), generate a relative depth map (90) in which a relative depth is assigned for each region of the surgical field image (21), based on the surgical field image (21), estimate a marker depth that is an absolute depth of a marker (M) shown in the surgical field image (21), based on the surgical field image (21), and convert at least a part of the relative depths included in the relative depth map (90) into an absolute depth based on the marker depth.

The present disclosure provides a medical device (12) and an operation method thereof that can prevent, even in a case where a video of a superimposition target (OV) to be superimposed is superimposed on a camera video such as a laparoscopic video (30), an incident in a superimposed region from being overlooked.A camera video acquisition unit (20) acquires a laparoscopic video (30). A video acquisition unit for superimposition (21) acquires a video of a superimposition target (OV) on the laparoscopic video (30). A detection unit (23) detects a change in a superimposition region in which the video of the superimposition target (OV) to be superimposed is superimposed on the laparoscopic video (30), and outputs any of notification necessity information according to a result of the detection, a superimposition parameter for controlling display of the superimposition region, or an incident occurrence region.

The present disclosure provides a medical device (14) and an operation method thereof that can present posture information of a 3D organ model (32) that a surgeon wants to see during surgery. A 3D organ model acquisition unit (20) acquires a 3D organ model (32) corresponding to an observation target organ (30a). An observation video acquisition unit (21) acquires an observation video (30) of an observation target including the observation target organ (30a). A scene information estimation unit (22) estimates scene information determined based on a position of the observation target organ (30a) or a positional relationship between the observation target organ (30a) and a member used for the observation target organ (30a), from the observation video (30). A scene-specific posture information estimation unit (23) estimates posture information of the 3D organ model (32) based on the scene information as scene-specific posture information. A display controller (24) controls the display of the 3D organ model (32) based on the scene-specific posture information.

The present disclosure provides a medical device (12) and an operation method thereof that can display whether resection of a target to be resected has or has not been completed without requiring a user to take any time and effort.A 3D organ model acquisition unit (20) acquires a 3D organ model (27) corresponding to an observation target organ (27a) to be observed. A camera video acquisition unit (21) acquires a laparoscopic video as a camera video. A first resection information generation unit (23) recognizes resection of the observation target organ from the laparoscopic video, and outputs first resection information including whether the resection has or has not been completed at a first resection timing. A display controller (22) performs display related to whether the resection has or has not been completed in the 3D organ model based on the first resection information.

The present disclosure provides a medical device and an operation method thereof that facilitate determination of which part of a 3D organ model not being observed corresponds to a region in an observation video.Virtual field-of-view information in a Viewer coordinate system is estimated from an observation video. A first field-of-view 3D organ model is acquired by changing a 3D organ model into a first field-of-view display mode based on the virtual field-of-view information. The first field-of-view 3D organ model and the 3D organ model are displayed. The virtual field-of-view information is estimated by using any of a learning model that has been trained using the observation video and the virtual field-of-view information, coordinate information of a robot arm, or a field-of-view detection sensor.

Provided are a radiation generation apparatus, an operation method of a radiation generation apparatus, and an operation program of a radiation generation apparatus that can accurately perform not only driving control to a target position but also alignment control between a radiation source and a radiographic image detection device.A radiation generation apparatus includes a body part including a radiation source that emits radiation toward a patient, the body part being capable of autonomous driving by a carriage unit having wheels. A driving control unit executes driving control of a carriage unit to a target position based on a surrounding environment and a self-position recognized by a driving control image. An alignment control unit executes alignment control of a radiation source and an electronic cassette based on the electronic cassette recognized by an alignment control image.

Provided are an ultrasound diagnostic apparatus and a control method of an ultrasound diagnostic apparatus that can easily and accurately select an ultrasound image of a frame suitable for measuring a diameter of a left ventricular outflow tract.The ultrasound diagnostic apparatus that guides a frame suitable for measuring a diameter of a left ventricular outflow tract from ultrasound images of a plurality of frames in which a heart of a subject is imaged includes an image recognition unit that performs image recognition on a local anatomical structure of the heart in each of the plurality of frames, a time-varying waveform generation unit that generates a time-varying waveform of an anatomical structure state based on the local anatomical structure recognized by the image recognition unit, a candidate frame extraction unit that extracts a measurement candidate frame from the plurality of frames using the time-varying waveform, a monitor, and a display controller that displays the measurement candidate frame in a highlighted manner on the monitor.

An object of the present disclosure is to reduce the number of times of transmitting ultrasound pulses while maintaining Doppler measurement performance for an ultrasound diagnostic apparatus. An intermittent transmission pattern determination method includes obtaining reference measurement information for reference transmission and intermittent measurement information for intermittent transmission, and obtaining error evaluation information representing a difference between the reference measurement information and the intermittent measurement information. The reference measurement information is information indicating a situation in which Doppler measurement information is obtained in a reference transmission operation. The intermittent measurement information is information indicating a situation in which the Doppler measurement information is obtained in an intermittent transmission operation. The reference measurement information and the intermittent measurement information may include a Doppler shift frequency. In addition, the reference measurement information and the intermittent measurement information may include information indicating a high-pass filter characteristic of a wall filter according to the number of received Doppler signal values, and aliasing characteristic information regarding the Doppler shift frequency.

A printing apparatus (10) includes a housing (11), a plurality of printer units (50), and at least one accommodation portion (34) that attachably and detachably accommodates at least one of the plurality of printer units and that is displaceable with respect to the housing.

An adjustable support for a flexible receive coil including a plurality of links. Each link can include a cross bar, a first side bar coupled to a first-end portion of the cross bar and a second side bar coupled to a second-end portion of the cross bar. The first link can be rotatably coupled to the second link. A first leading-end portion of first link is rotatably coupled to a first trailing-end portion of the second link such that the first leading-end mating surface of the first link engages the first trailing-end mating surface of the second link. A second leading-end portion of first link is rotatably coupled to a second trailing-end portion of the second link such that the second leading-end mating surface of the first link engages the second trailing-end mating surface of the second link.

Provided are a service providing device, a service providing method, and a service providing program that can achieve both improvement in service quality and enhancement in operational efficiency. A service providing device is a service providing device that provides services including a service for printing an image on a recording medium, the service providing device including: a plurality of printers each having an independent accommodating mechanism for the recording medium; and a processor that selects at least one printer such that a condition having relatively high priority among a plurality of predetermined conditions for selecting the printers is satisfied.

Provided are a service providing device, a service providing method, and a service providing program that can improve flexibility of use.A service providing device is a service providing device that provides services including a service for printing an image on a recording medium, the service providing device including: a first housing including a first printer; and a second housing including a second printer and a processor that performs control of selectively using at least one of the first printer or the second printer to print the image on the recording medium. The first housing and the second housing are connectable and capable of providing the services in both a connected state and a separated state in which the first housing and the second housing are disconnected.

An apparatus (10) for magnetic resonance imaging is disclosed. The apparatus (10) estimates, using a projection onto convex sets method, data of an unmeasured region from partial measurement data that is data acquired within an asymmetrical measurement region (MA) of a k-space, and includes a processor (202) configured to: input a partial measurement image reconstructed based on the partial measurement data to a trained model; estimate an image reconstructed from full measurement data corresponding to the partial measurement data from the partial measurement image using the trained model to generate an estimation image; generate a phase image indicating a phase distribution from the estimation image; and apply the phase image to phase correction in the projection onto convex sets method.

Provided are a magnetic resonance imaging apparatus (10), an image processing apparatus, an image processing method, and a program that can suppress the occurrence of striped noise in an image reconstructed based on partial k-space data acquired within an asymmetrical measurement region of the k-space and generate a high-quality image. A magnetic resonance imaging apparatus (10) estimates data of a k-space by applying a half-Fourier method or a POCS method to partial measurement data (PKt) of an asymmetrical measurement region of the k-space, acquires a corrected image (F12B) in which the data of the k-space is reconstructed, acquires a smoothing-corrected image (F12C) obtained by performing smoothing filter processing on the corrected image (F12B), replaces data of the unmeasured region of the smoothing-corrected image (F12C) with zero data, and estimates the data of the unmeasured region using a first trained model.

A magnetic resonance imaging apparatus (10) includes a processor (202) which is configured to: acquire second partial measurement data of a second measurement region excluding a second unmeasured region that is asymmetrical and arbitrarily set for a second k-space; fill the second unmeasured region with zero data and generate data of the second k-space consisting of the second partial measurement data and the zero data filling the second unmeasured region; and when second proportion of the second unmeasured region to an entire region of the second k-space is different from a first proportion of a first unmeasured region to an entire region of a first k-space corresponding to a training image used for training a trained model, generate data of a third k-space by filling an outer region of the second k-space with zero data such that the second proportion becomes the first proportion.

Provided are a magnetic resonance imaging apparatus (10), an image processing apparatus, an image processing method, a program, and a generation method of a trained model that can suppress the occurrence of striped noise in an image reconstructed based on partial k-space data acquired within an asymmetrical measurement region of the k-space and generate a high-quality image. A magnetic resonance imaging apparatus (10) estimates a second reconstruction image by inputting a first reconstruction image to a first trained model that has been trained to receive an input of an input image in which data of a k-space including data of a measurement region is reconstructed and output a noise-reduced image in which the data of the k-space including the data of the measurement region in which noise is reduced is reconstructed, and estimates data of an unmeasured region other than the measurement region from the second reconstruction image.

Provided are a magnetic resonance that can obtain a reconstruction image in which resolution of an unmeasured region is improved while an increase in noise in a measurement region is suppressed. A magnetic resonance imaging apparatus (10) according to the present disclosure estimates a second reconstruction image by inputting a first reconstruction image obtained by reconstructing data of a k-space including partial measurement data of a measurement region to a trained model, and generates a fourth reconstruction image by reconstructing the data of the k-space including first measurement region data of the measurement region of the k-space obtained by performing a Fourier transform on the second reconstruction image and first unmeasured region data of the unmeasured region of the k-space obtained by performing a Fourier transform on a third reconstruction image obtained by performing edge enhancement filter processing on the second reconstruction image.

Provided are a magnetic resonance imaging apparatus (10), an image processing apparatus, an image processing method, a program, and a trained model set that can reduce a training cost of a trained model. A magnetic resonance imaging apparatus (10) according to the present disclosure includes a processor (202) that selects a trained model corresponding to an unmeasured percentage from among a plurality of trained models and estimates data of an unmeasured region using the selected trained model, in which at least one of the number of layers, a kernel size, or the number of channels of convolutional processing is smaller in a first trained model corresponding to a first unmeasured percentage among the plurality of trained models than in a second trained model corresponding to a second unmeasured percentage that is relatively higher than the first unmeasured percentage.

Provided is a technique capable of automatically setting an irradiation range such that an effective image receiving surface of an FPD can be utilized to a maximum extent, regardless of a size of the FPD.An X-ray imaging apparatus includes: an X-ray irradiation unit (10) including an X-ray tube (12) and an X-ray collimator (13); an imaging table (20) provided with an accommodating portion that accommodates an X-ray detector (40); and a processor (70) configured to control the X-ray irradiation unit (10), in which the processor (70) has an aperture automatic control function of detecting a size of the X-ray detector (40) and a distance between the X-ray tube (12) and the X-ray detector (40) and automatically adjusting an aperture of the X-ray collimator (13) in accordance with the size of the X-ray detector (40) based on a detection result.

A radiography system includes a first position detection mechanism that includes an optical camera that is provided in the radiation generation apparatus and capable of imaging the electronic cassette, and detects a position of the electronic cassette based on a camera image captured by the optical camera, a second position detection mechanism that includes a generator that generates a non-optical signal and a sensor that detects the non-optical signal, in which one of the generator and the sensor is provided in the radiation generation apparatus and the other is provided in the electronic cassette, and detects a position of the electronic cassette based on the non-optical signal, and a processor that is configured to execute control of outputting a detection result of at least one of the first position detection mechanism or the second position detection mechanism.

A medical support apparatus comprising a processor configured to: acquire a surgical field image obtained by optically taking, with a camera, an image of a surgical field containing a target area inside the body; generate a composite image with preparation information superimposed onto the surgical field image, the preparation information having been prepared in advance as information related to the target area, including at least a three-dimensional image illustrating an internal structure of the target area or applied information applied to the three-dimensional image, and having a defined three-dimensional position within the three-dimensional image; and control displaying of the composite image, wherein if the preparation information further includes a plurality of pieces of preparation information at different depths in a depth direction proceeding from a surface layer to deep layers of the target area in the three-dimensional image, the processor is configured to change a display appearance of the plurality of pieces of preparation information in the composite image, depending on the depth.

Provided are an image processing apparatus, an operation method of the image processing apparatus, and an operation program of the image processing apparatus that can perform registration of an ultrasound image (13) and a three-dimensional image such that a registration result does not fall into a local solution and a clearly incorrect registration result is not output.An acquisition unit acquires a CT image of a patient. A generation unit acquires a US image of the patient by generating the US image from an echo signal. A selection unit repeatedly selects a plurality of reference points from a first point group of the US image and a plurality of target points from a second point group of the CT image a plurality of times. A derivation unit derives a candidate parameter each time the reference point and the target point are selected. A determination unit determines whether the candidate parameter satisfies a constraint condition related to a position and a posture of an ultrasound probe (10) at the time of capturing the US image.