Abstract: A capacitive micro-machined ultrasonic transducer (CMUT) device in which integrated probe circuitry includes both the ultrasound transmission and reception circuitry and a DC-DC converter for generating a bias voltage for the CMUT cell. The high voltage pulses of a pulser circuit and a high voltage DC bias voltage are both generated by a single probe circuit, which is local to the CMUT cell.

Abstract: An ultrasound diagnostic system includes an ultrasound diagnostic device that creates test images of an intima-media thickness of a blood vessel, a workstation connected to the ultrasound diagnostic device, and a database that sequentially stores the test images created by the ultrasound diagnostic device. The workstation includes an input unit for allowing a user to input various kinds of information, a display unit, a workstation control unit that retrieves test images in past tests for the patient as past images from the test images stored in the database to make the display unit display the past images stored in the database as thumbnails, after a current image that is a test image of a current test are created for the patient by the ultrasound diagnostic device, and a test report creation unit that automatically creates a test report on the basis of the current image, and at least one past image selected by the user via the input unit from the past images displayed as the thumbnails on the display unit.

Abstract: An acoustic imaging system responsive to an acoustic wave emitted from an object is disclosed. The system detects a deflection angle of an electromagnetic probe beam as it passes through a coupling element. The coupling element also couples the acoustic wave emitted from the object to an acoustic detector. The probe beam deflection angle is related to an angle of propagation of the acoustic wave through the coupling element. A filtering unit is configured to remove components of the signal from the acoustic detector that are outside of a range of angles, thereby improving the angular resolution of the acoustic detector. The acoustic wave may be generated by an acoustic source, such as an ultrasound transmitter, or an electromagnetic source such as a laser.

Abstract: An imaging system, such as a surgical microscope, laparoscope, or endoscope or integrated with these devices, includes an illuminator providing patterned white light and/or fluorescent stimulus light. The system receives and images light hyperspectrally, in embodiments using a hyperspectral imaging array, and/or using narrowband tunable filters for passing filtered received light to an imager. Embodiments may construct a 3-D surface model from stereo images, and will estimate optical properties of the target using images taken in patterned light or using other approximations obtained from white light exposures. Hyperspectral images taken under stimulus light are displayed as fluorescent images, and corrected for optical properties of tissue to provide quantitative maps of fluorophore concentration. Spectral information from hyperspectral images is processed to provide depth of fluorophore below the tissue surface. Quantitative images of fluorescence at depth are also prepared.

Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for detecting a delivery catheter using intravascular data. In one embodiment, the delivery catheter is used to position the intravascular data collection probe. The probe can collect data suitable for generating one or more representations of a blood vessel with respect to which the delivery catheter can be detected.

Abstract: The present invention relates to a device (1) for modifying an imaging of a TEE probe in X-ray data, a medical imaging system (100) for modifying an imaging of a TEE probe in X-ray data, a method for modifying an imaging of a TEE probe in X-ray data, a computer program element for controlling such device (1) and a computer readable medium having stored such computer program element. The device (1) comprises an X-ray data provision unit (11), a model provision unit (12), a position locating unit (13), and a processing unit (14). The X-ray data provision unit (11) is configured to provide X-ray data comprising image data of a TEE probe. The model provision unit (12) is configured to provide model data of the TEE probe. The position locating unit (13) is configured to locate a position of the TEE probe in the X-ray data based on the model data of the TEE probe. The processing unit (14) is configured to define a region in a predetermined range adjacent to the TEE probe as reference area.

Abstract: A method for locating a vessel, the method comprising illuminating at least a portion of the vessel with a background light having a substantially high susceptibility to absorption by particles in said portion of the vessel; detecting backscattered light from said illuminated portion of the vessel; reproducing an image from said backscattered light; and identifying dark regions within said reproduced image.

Abstract: Needles are deployed in tissue under direct ultrasonic or other imaging. To aid in deploying the needle, a visual needle guide is projected on to the image prior to needle deployment. Once the needle guide is properly aligned, the needle can be deployed. After needle deployment, a safety boundary and treatment region are projected on to the screen. After confirming that the safety boundary and treatment regions are sufficient, the patient can be treated using the needle.

Abstract: An ultrasound elasticity measurement device includes an ultrasound probe. The ultrasound probe includes a vibrator and a transducer. The ultrasound elasticity measurement device further includes a vibration controller, a transmission/receiving controller and a data processor. When simultaneously performing the strain detection and the vibration elasticity detection, the vibration controller generates a vibration control sequence and transmits the same to the vibrator. The ultrasound probe vibrates when driven by the vibrator, and transmits ultrasound waves to the biological tissue and receives the ultrasound echoes, so as to obtain the ultrasound echo data for strain detection and the ultrasound echo data for vibration elasticity detection.

Abstract: The present invention relates to an X-ray imaging device for minimally invasive surgery, the device including: a rod having a clamp module disposed at a first end of the rod and including a first clamp body, a second clamp body, and a clamp support; an X-ray emission module; an X-ray sensing module; and a manipulation module, in which the rod is inserted into the human body, X-rays are emitted from the X-ray emission module with the first end of the first clamp body and the first end of the second clamp body open with a lesion positioned therebetween in the human body, and the X-rays travel through the lesion and is then sensed by the X-ray sensing module.

Abstract: Provided is a non-invasive system and method of determining pennation angle and/or fascicle length based on image processing. An ultrasound scan image is processed to facilitate distinguishing of muscle fiber and tendon. The processed ultrasound scan image is then analyzed. The pennation angle and/or fascicle length is determined based on the analysis. An example method includes receiving an ultrasound scan image of at least a portion of a skin layer as disposed above one or more additional tissue layers, the image provided by a plurality of pixels. The method continues by introducing noise into the pixels of the image and thresholding the pixels of the image to provide a binary image having a plurality of structural elements of different sizes. The method continues with morphing the structural elements of the binary image to remove small structural elements and connect large structural elements.

Abstract: Ultrasound imaging methods and ultrasound imaging devices are provided, in which an inter-frame processing may be performed on elasticity echo data or the elasticity images to obtain new elasticity images, thereby improving the display frame rate of the elasticity images. The elasticity echo data comprises an ultrasound echo of an ultrasound wave returned from an object, and the elasticity images comprises at least two frames and obtained according to the elasticity echo data.

Abstract: A guiding system and a guiding method for ultrasound scanning operation are provided. The guiding system includes a handheld guiding device, a display device, an ultrasound scanning device, a prompting device, and a control host. When the handheld guiding device generates a first physical motion, the control host detects the first physical motion and generates navigation prompting information accordingly. The prompting device is suitable for presenting the navigation prompting information to guide the ultrasound scanning device to move to generate a second physical motion. The control host captures an ultrasound image via the ultrasound scanning device and sends the ultrasound image to the display device at a guiding end for display.

Abstract: At least one magnetic field actuator is configured for generating an actuated magnetic field that at least partially cancels an outside magnetic field, thereby yielding a total residual magnetic field. A plurality of magnetometers are configured for taking measurements of the total residual magnetic field. The magnetometers include a plurality of coarse magnetometers and a plurality of fine magnetometers. A processor is configured for acquiring the total residual magnetic field measurements from the coarse magnetometers, estimating the total residual magnetic field at the fine magnetometers based on total residual magnetic field measurements acquired from the plurality of coarse magnetometers, and controlling the actuated magnetic field at least partially based on the total residual magnetic field estimates at the fine magnetometers in a manner that suppresses the total residual magnetic field at the fine magnetometers to a baseline level, such that at least one of the fine magnetometers is in-range.

Abstract: When planning magnetic resonance (MR) guided high intensity focused ultrasonic (HIFU) therapy, HIFU transducer element parameters are optimized as a function of 3D MR data describing a size, shape, and position of a region of interest (ROI) (146) and any obstructions (144) between the HIFU transducer elements and the ROI (146). Transducer element phases and amplitudes are adjusted to maximize HIFU radiation delivery to the ROI (146) while minimizing delivery to the obstruction (144). Additionally or alternatively, transducer elements are selectively deactivated if the obstruction (144) is positioned between the ROI (146) and a given transducer element.

Abstract: Methods, system, and media for identifying one or more ablation locations in an atrial tissue region in an atrial fibrillation (AF) patient with atrial fibrosis are disclosed. Three-dimensional imaging data representing the atria of the patient may be received. A patient-specific model of the atria may be generated from the three-dimensional imaging data. Simulation of the AF on the patient-specific model may be conducted to identify AF-perpetrating regions. One or more ablation locations in the atria may be identified from the AF-perpetrating regions.

Abstract: A method is disclosed for diagnosing and treating a patient having lesions in both arteries of left and right lower limbs. By determining that a lower stenosis rate lesion to be treated first, catheters and an operation time can be reduced is to be treated first on a priority basis based on diagnostic data, deciding that a higher stenosis rate lesion is to be treated next, then treating the lesions substantially continuously.

Abstract: Systems and methods for magnetic resonance elastography (MRE) are disclosed. In one embodiment, MRE data corresponding to mechanical waves in tissue of interest of a subject is acquired. The MRE data is associated with stiffness of the tissue. The method also includes generating, based on the MRE data, a stiffness map representing stiffness of the tissue. Generating the stiffness map includes performing an unconstrained optimization cost function that is configured to reduce noise in the acquired MRE data and achieve inversion of the reduced-noise data.

Abstract: The present disclosure is directed to an ultrasonic catheter assembly. More specifically, the catheter assembly includes a catheter and one or more piezoelectric or echogenic components. The catheter has a side wall that extends from a proximal end and a distal end that defines a lumen extending from the proximal end to the distal end. Thus, the lumen is configured to deliver a treatment fluid from the proximal end to the distal end. In addition, the piezoelectric component(s) are configured with the side wall of the catheter and/or embedded at least partially within the side wall of the catheter. As such, the piezoelectric component(s) are configured to enhance ultrasonic imaging of the catheter, e.g. when activated by a stimulator assembly.

Abstract: An ultrasound patch may conform to a curved surface of a large, curvilinear part of a human body, and may capture ultrasound images of underlying tissue for detection of disease. The patch may comprise a flexible, elastomeric substrate, in which phased arrays of piezoelectric ultrasound transducers are embedded. The phased arrays may steer ultrasound beams through a wide angle to image a large volume of tissue. Mechanical deformation of the flexible substrate as it conforms to a curvilinear body part may change the relative 3D positions of the phase arrays. However, localization may be performed to detect these 3D positions. Data captured by the phased arrays may be processed, to create an ultrasound image of the underlying tissue. A semi-flexible, intermediate layer may partially encapsulate each phased array, to distribute stress at an interface between the rigid phased array and more flexible substrate.