Abstract: Disclosed herein is an ultrasonic imaging apparatus of displaying functions related to the ultrasonic imaging apparatus on a display unit when the ultrasonic imaging apparatus moves, and activating a function selected by a user from among the functions displayed on the display unit. According to an embodiment, the ultrasonic imaging apparatus includes: a display unit configured to display one or more functions related to movement of the ultrasonic imaging apparatus when the ultrasonic imaging apparatus moves; and a controller configured to activate a function selected by a user from among the one or more functions displayed on the display unit.

Abstract: Apparatus and method for imaging a patient in an MRI system. This includes a frame, and at least one assembly that includes an earpiece positioner connected to a reference position on the frame, a first lockable joint on the positioner; and an earpiece connected to a patient-proximal end of the positioner by a second joint, wherein the first earpiece is movably positioned to a selected pitch angle, a selected yaw angle, and a selected one of a plurality of distances relative to the reference position on the frame. The first lockable joint is configured to be tightened to yieldably hold the first earpiece at the selected pitch and yaw angles, and at the selected one of the plurality of distances, relative to the reference position. Optionally a second substantially similar earpiece and assembly are provided. The earpiece(s) optionally include audio transducer(s) and/or RF coil(s).

Abstract: A subject information acquisition apparatus comprises a casing in which a transmissive member capable of transmitting acoustic waves and laser beams therethrough is provided; a light irradiating unit disposed inside the casing so as to irradiate a subject with laser beams with the transmissive member interposed; an acoustic wave probe disposed inside the casing so as to receive acoustic waves with the transmissive member interposed; and a scanning mechanism disposed inside the casing so as to move the light irradiating unit and the acoustic wave probe in relation to the casing, wherein the casing is configured to be movable on the subject.

Abstract: An embodiment in accordance with the present invention provides a device and method for a transrectal ultrasound (TRUS) guided prostate biopsy. The device includes an ultrasound wand equipped with a lateral fire ultrasound sensor. The ultrasound wand also defines a channel having an oblique path though the wand. The channel accommodates a biopsy needle, which can be pivoted as well inserted through the channel to different depths in order to perform a biopsy of the prostate. The device therefore uses only three degrees-of-freedom of movement in order to obtain the biopsy samples. Additionally, the ultrasound wand can be used to generate a three-dimensional image of the prostate.

Abstract: A medical apparatus includes: a breathing device comprising an air pressure generator for generating air pressure, a tube for delivering the air pressure to a patient, and a sensor configured to sense a characteristic associated with a breathing of the patient; and a processing unit configured to receive an output from the sensor, and generate a control signal for controlling a medical device based at least in part on the output from the sensor.

Abstract: Described are embodiments of devices and methods for imaging a body conduit, such as a blood vessel. In particular embodiments, the catheter has a chamber within which is a transducer mounted to a pivot mechanism. A coil provides a pivot force to the transducer. A magnet is attached to the transducer and is receptive of a torque applied by a magnetic field produced by energizing of the coil. A driving mechanism receives an impact from the pivot member and causes the pivot mechanism to rotate about a rotation axis.

Abstract: Example apparatus and methods provide improved spatial and temporal resolution over conventional magnetic resonance renography (MRR). Example apparatus and methods reconstruct under-sampled three-dimensional (3D) data associated with nuclear magnetic resonance (NMR) signals acquired from a kidney. The data is reconstructed using a 3D through-time non-Cartesian generalized auto-calibrating partially parallel acquisitions (GRAPPA) approach. Example apparatus and methods produce a quantized value for a contrast agent concentration in the kidney from a signal intensity in the data based, at least in part, on a two compartment model of the kidney. The two compartment model includes a plasma compartment and a tubular compartment. The quantized value describes a perfusion parameter for the kidney or a filtration parameter for the kidney.

Abstract: A biopsy device includes a tubular member, a hollow shaft and an elongated fiber body having at least one optical fiber. The hollow shaft has a laterally (sidewardly) facing notch in its distal portion. The tubular member is movable relative to the shaft, between a first position in which the notch is covered by the tubular member, and a second position in which the notch is not covered by the tubular member. The shaft is movable between a first position in which the distal end of the optical fiber is located at the distal end of the shaft with the elongated fiber body extending through the notch, and a second position in which the distal end of the at least one optical fiber is located proximally to the notch.

Abstract: An ultrasonic signal processing method includes: acquiring pieces of element data output from each element included in an ultrasonic probe including multiple elements configured to transmit an ultrasonic wave to a subject, receive an ultrasonic wave reflected by the subject and output an ultrasonic detection signal; determining element data to be preserved, according to depth information on a reception echo at an acquisition time of the element data, among the pieces of element data of each of the acquired elements; and preserving the element data determined to be preserved.

Abstract: A side-fire ultrasonic probe includes an alignment feature that, when used to connect the probe with a needle guide for intra-cavity medical procedures, enables alignment of a needle in an imaging plane of an ultrasonic transducer. The alignment feature is configured such that alignment of the needle within the imaging plane is accomplished when a protective sheath is disposed between the alignment feature and the needle guide. This configuration can be used with high frequency ultrasonic arrays having frequency distributions centered at about 20 MHz, and for medical procedures, such as biopsying organs or other bodily intra-cavity structures, and delivering intra-cavity therapies.

Abstract: A system for supporting a patient while scanning a volume of tissue protruding from a patient includes a base having a planar portion configured to support the patient in a prone configuration. A frustoconical portion extends from the planar portion and defines a base aperture configured to receive the volume of tissue. A support assembly couples to the base. A membrane is retained in tension within a frame at a peripheral portion of the membrane. The membrane defines a membrane aperture configured to align with the base aperture, and the membrane is configured to deflect into the frustoconical portion of the base in response to the patient's weight. The system can further include an electrical subsystem including a pressure sensor array configured to generate signals in response to a pressure distribution resulting from the patient's weight at the patient interface system.

Abstract: The present invention discloses an intelligent assistant judgment system for images of cervix uteri and a processing method thereof. This system comprises a colposcope device and an assistant judgment device. By combining the colposcope device and the assistant judgment device together to obtain the images of the cervix uteri to be detected by the colposcope device and to compare and analyze the images of the cervix uteri to be detected and its characteristic data by the assistant judgment device, the present invention can judge whether the current cervix uteri to be detected are normal cervix uteri, and can obtain, from the characteristic data of the images of the cervix uteri to be detected, the type of a lesion occurring in the current cervix uteri to be detected and characteristic parameters of the lesion. The doctors are assisted in making correct diagnosis and judgment.

Abstract: Some aspects of the present disclosure relate to systems and methods for examining a subject. In one embodiment, a method includes polarizing nuclei of a radioactive substance such that the spins of the nuclei are oriented in a specific direction, to generate a polarized radioactive tracer with anisotropic gamma ray emission probability. The method also includes introducing the tracer into a subject. The method further includes applying radio frequency oscillating (RF) magnetic fields and/or spatially varying magnetic fields to the tracer that are configured to manipulate the orientation of the spins such as to manipulate the directional dependence of gamma ray emission from the tracer. The method further includes detecting gamma rays from the gamma ray emission, and obtaining, based on the detected gamma rays and properties associated with the anisotropic gamma ray emission, imaging data and/or spectroscopic data associated with the tracer in the subject.

Abstract: The devices and methods generally relate to vibratable sensors for measuring ambient fluid pressure, in particular implantable sensors. The devices and methods are particularly well-suited to implantation within the body of a living animal or human to monitor physiological conditions, such as portal and/or hepatic venous blood pressure, and allow frequent, remote interrogation of venous pressure using the resonance frequency of an implanted sensor. The sensor devices are relatively small compared to conventional devices for measuring fluid pressure and can be implanted in the porto-hepatic venous system, whereas conventional devices are too large. The small size of the device is accomplished by using a thick sensor membrane, compared to conventional devices, and by limiting the size of additional elements of the device relative to the size of the sensor membrane. The thicker sensor member also obviates the need for multiple sensor arrays and maintains the accuracy and robustness of the sensor device.

Abstract: An ultrasound imaging system includes an ultrasound transducer that receives an echo signal generated in response to an ultrasound signal transmitted by the system interacting with a moving material. Receive circuitry processes the echo signal and produces an electrical signal indicative thereof. Front end electronics amplify and digitize the electrical signal producing M-bit RF data. A beamformer that processes the M-bit RF data and generates N-bit high dynamic range beamformed data. N is greater than M. The system further includes pre-processing circuitry that converts the N-bit data RF to 2×K-bit I/Q data. K is less than M. A velocity processor determines a phase estimate of the moving material from the I/Q data. A rendering engine visually presents the phase estimate.

Abstract: An apparatus includes an image analysis unit arranged to extract, from the medical image, brightness intensities of a first body lumen region of the medical image and brightness intensities of a second body lumen region of the medical image; and a measuring unit arranged to calculate a first body lumen value and a second body lumen value, each of the first body lumen value and a second body lumen value being calculated as a predetermined linear combination of the brightness intensities of the corresponding first body lumen region and second body lumen region, and to compare the first body lumen value with the second body lumen value.

Abstract: Methods for registering a three-dimensional model of a body volume to a real-time indication of a sensor position that involve analyzing scanned and sensed voxels and using parameters or thresholds to identify said voxels as being either tissue or intraluminal fluid. Those voxels identified as fluid are then used to construct a real-time sensed three-dimensional model of the lumen which is then compared to a similarly constructed, but previously scanned model to establish and update registration.

Abstract: Sub-performing elements of an ultrasound transducer array are detected. The power, such as current, used by or provided to the transmit driver is measured. By driving each element or group of elements separately, defective elements or groups of elements are detected from the amount of power used.

Abstract: Disclosed are a non-invasive liver function testing apparatus and method. The non-invasive liver function testing apparatus includes a light source configured to irradiate light onto an object, a light detector configured to detect information about light reflected from the object, a raw data extractor configured to extract raw data, associated with at least one target material constituting the object, from the information detected by the light detector, and a data processor configured to extract liver function-related information, including a correlation with the at least one target material, from the raw data.

Abstract: Techniques, systems, and devices are disclosed for ultrasound diagnostics using spread spectrum, coherent, frequency- and/or phase-coded waveforms.