Abstract: Embodiments of the present invention relate to the technical field of RF circuits, and in particular, to a balun. In an embodiment of the present invention, a balun is provided which comprises at least two coaxial cables, each of which is wound into at least one loop, and the inner and outer conductors of one end of all coaxial cables are connected respectively to each other and the inner and outer conductors of the other end are also connected to each other. The novel balun according to the embodiments of the present invention has a small size but a large power capacity and low cost, and can be used in a magnetic field environment.

Abstract: A display device including a display control unit is provided. The display control unit is configured to display, in a display screen, a list image including a list of medical data that includes a part of a plurality of pieces of medical data of a patient having different time information. The display control unit is further configured to display a period image illustrating a total period from an oldest time to the present in time information of the medical data of the patient such that the total period fits in the display screen, wherein the display control unit is configured to display, in the period image, a partial period from an oldest time to a latest time of the time information of the medical data included on the displayed list of medical data.

Abstract: A magnetic resonance imaging apparatus executes a calibration scan for acquiring calibration data used to correct image data of a subject and an imaging scan for acquiring the image data of the subject and receives magnetic resonance signals using combinations of coil elements selected out of a plurality of coil elements. The magnetic resonance imaging apparatus includes a calibration scan condition determining device for determining a scan condition for the calibration scan, based on a first scan range of the subject taken when the imaging scan is executed and a first combination of coil elements used to receive magnetic resonance signals in the first scan range.

Abstract: A magnetic resonance imaging (MRI) apparatus sequentially transmits a plurality of radio frequency (RF) pulses having flip angles of ?1°, ?2°, ??1°, and ??2° for refocusing transverse magnetization of spins, and brings the transverse magnetization of the spins to longitudinal magnetization after the refocusing of the transverse magnetization of the spins.

Abstract: A magnetic resonance imaging apparatus for acquiring k-space data from a deformable imaging region of a subject and generating image data of the imaging region at the time of being deformed to a predetermined state, based on the acquired k-space data, includes a gradient coil for applying a gradient magnetic field in a phase encoding direction, and an image data calculation device for calculating a numeric value for defining a relationship between the imaging region at the time of being deformed to the predetermined state and the imaging region at an nth phase encoding and calculating image data of the imaging region at the time of being deformed to the predetermined state, based on the calculated numeric value and the k-space data acquired from the imaging region.

Abstract: A magnetic resonance imaging apparatus includes a coil control device that controls a transmission coil and a gradient coil such that (A) a longitudinal magnetization adjustment pulse sequence for setting a longitudinal magnetization component positive in value of a first body fluid smaller than a longitudinal magnetization component positive in value of a second body fluid is executed on the first and second body fluids, (B) a longitudinal magnetization reverse pulse for reversing the longitudinal magnetization components of the first and second body fluids is transmitted, and (C) a data acquisition pulse sequence for acquiring data of the first body fluid when an absolute value of the longitudinal magnetization component of the first body fluid flowing through an imaging area is larger than an absolute value of the longitudinal magnetization component of the second body fluid, is executed.

Abstract: Embodiments of the present invention relate to the technical field of automatic testing of a graphical user interface in the technical field of software testing. Embodiments of the invention provide a method for automatically generating a test script for a graphical user interface. This method comprises defining information of each component in a tested graphical user interface, writing a test case file, and generating a file of combined values of components, and adding an operation type to each component in each file of combined values. The method further comprises determining a sequence of operations in each of the files of combined values, and generating a test script. This method reduces the tester's workload when manually programming test scripts and facilitates maintenance of test scripts.

Abstract: An image generating method is provided. The method includes performing a rearrangement process and an interpolation process on fan beam projection data, the fan beam projection data acquired by a scan that includes rotating a radiation source and a detector having a plurality of detecting elements arranged in a channel direction, wherein the interpolation process generates equally-spaced parallel beam projection data in which channel-direction intervals are equal therebetween, and wherein the interpolation process is performed with respect to a plurality of view directions. The method further includes performing a back-projection process on the equally-spaced parallel beam projection data to thereby reconstruct an image, wherein the channel-direction intervals between the equally-spaced parallel beam projection data are smaller than a reference interval obtained by dividing an interval between the detecting elements in the channel direction by a projection enlargement rate.

Abstract: A method for pre-distorting an exciter includes obtaining a characteristic curve of a radio frequency (RF) amplifier, obtaining a first relationship between a gain amplitude correction value and an input power and a second relationship between a gain phase correction value and the input power based on the characteristic curve, obtaining a transmission gain for use in a scan from a magnetic resonance pre-scan, and obtaining the gain amplitude correction value and the gain phase correction value of an input of the exciter based on the input of the exciter, the transmission gain, the first relationship, and the second relationship. An input of the exciter is pre-distorted using the gain amplitude correction value and the gain phase correction value.

Abstract: A method and system are disclosed for a compact, inexpensive ultrasound system using an off-the-shelf personal digital assistant (PDA) device interfacing to a hand-held probe assembly through a standard digital interface. The hand-held probe assembly comprises a detachable transducer head attached to a beamforming module that performs digital beamforming. The PDA runs Windows applications and displays menus and images to a user. The PDA also runs ultrasound data processing software to support a plurality of imaging modes. An internal battery is provided in the PDA to power the system. The transducer head is detachable from the beamforming module.

Abstract: A method of manufacturing a detector is provided. The method includes using a removable double-faced adhesive film to bond a flat panel detector and a panel detector support.

Abstract: Embodiments of the present invention relate to a ceramic rotary valve for an anesthetic vaporizer, the valve body of the rotary valve comprising a ceramic material. Embodiments of the present invention also provide an anesthetic vaporizer comprising the ceramic rotary valve and an anesthesia machine comprising the anesthetic vaporizer. Furthermore, embodiments of the present invention also provide a method of utilizing an anesthetic vaporizer comprising a ceramic rotary valve to control anesthetics concentration output by the anesthetic vaporizer.

Abstract: A detector module configured to be included in an array of a plurality of detector modules that form a radiation detector is provided. The detector module includes a light emitting element configured to emit fluorescence upon receiving radiation, a light receiving element configured to convert the fluorescence into an electrical signal, and at least one support member located on a side opposite from said light emitting element, said at least one support member configured to support a light shielding member which covers a gap formed between adjacent detector modules in the array.

Abstract: A switching DC converting device includes a switching DC converter and a synchronous clock circuit. The synchronous clock circuit is used to provide a wobbling synchronous clock input for the switching DC converter, and the central frequency of the wobbling synchronous clock avoids the operating frequency of a circuit powered by the switching DC converter.

Abstract: A wall stand comprising a column, a detector box, a support arm configured to support the detector box, a rotary shaft mounted on the support arm, a rotary bracket attached to the detector box, wherein the rotary bracket is rotatable around the rotary shaft, and a drive mechanism configured to move the detector box on a plane supported by the rotary bracket in a direction perpendicular to an axial direction of the rotary shaft.

Abstract: A method for implementing a switching between a body coil and a head coil in a nuclear magnetic resonance imaging system comprising the body coil, the head coil and a power amplifier component, wherein the power amplifier component comprises sets of power amplifiers, each set of power amplifiers comprising channels of power amplifiers combined by a Wilkinson circuit, a combiner configured to combine signals from the sets of power amplifiers and to connect the sets of power amplifiers to the body coil, a first switching device comprising a first terminal configured to be grounded, a second switching device connected in series in a resistor branch of the Wilkinson circuit, and a ¼ wavelength transformation transmission line located between the second switching device and the head coil, the method comprising connecting the power amplifier component to the body coil or the head coil by setting states of both switching devices.

Abstract: A transmission/reception circuit for an ultrasonic probe having an ultrasonic transducer is provided. The transmission/reception circuit includes a first drive pulse generation unit configured to generate a first drive pulse for driving the ultrasonic transducer, a switch configured to turn on and off output of a second drive pulse for driving the ultrasonic transducer to the ultrasonic transducer, the second drive pulse supplied from an ultrasonic image display apparatus body connected to the ultrasonic probe, and a delay unit configured to add a delay time to an echo signal of an ultrasonic wave received by the ultrasonic transducer.

Abstract: A method for sorting CT image slices comprising, if no image slice comprises a target respiratory phase at a couch position, determining a target breathing feature value corresponding to the target respiratory phase based on a respiratory motion curve of a scanned patient, searching from a plurality of image slices at the couch position for one or more image slices comprising a breathing feature value close to the target breathing feature value to serve as candidate image slices, and selecting, based on a breathing feature value difference between the breathing feature value of each of the candidate image slices and the target breathing feature value and/or an image difference between each of the candidate image slices and at least one reference image slice, a single image slice from the candidate image slices for constructing the 3D CT image for the target respiratory phase.

Abstract: A blood flow dynamic analysis apparatus analyzes the kinetics of a blood flow in a subject by injecting a contrast medium into the subject. The apparatus includes a map generation device computing the value of a parameter related to time change in the concentration of the contrast medium injected into the subject and generating a map of the parameter, and a display condition determination device determining a display condition for the map based on a threshold value of the parameter for discriminating between a lesion region where a lesion exists and an unaffected region where no lesion exists in the map.

Abstract: An ultrasound diagnostic apparatus is provided. The ultrasound diagnostic apparatus includes a fluid position detection unit configured to detect a position of fluid in a subject, a biopsy needle position detection unit configured to detect a position of a biopsy needle to be inserted into the subject, a distance calculation unit configured to calculate a distance between the fluid and the biopsy needle, based on the detected position of the fluid and the detected position of the biopsy needle, and a notice unit configured to generate a warning when the distance calculated by the distance calculation unit is smaller than a predetermined threshold value.