Abstract: A system and method for a non-contrast enhanced magnetic resonance imaging technique using a temporal maximum intensity projection reconstructed from multiple temporal subsets of data acquired the acquisition window. The method includes applying a radiofrequency pulse to the subject, waiting a quiescent interval, performing a radial acquisition with a golden-angle view angle increment over a duration corresponding to a cardiac cycle of the subject to generate acquisition data, reconstructing a plurality of images across a plurality of temporal phases from the acquisition data and generating a temporal maximum intensity projection image by tracking an intensity of each pixel across the plurality of images and selecting the pixel having a maximum intensity value across the plurality of images.

Abstract: A system for ultrasound interrogation of a lung including a memory, an electromagnetic (EM) board, an extended working channel (EWC), an EM sensor, a US transducer, and a processor. The memory stores a three dimensional (3D) model and pathway plan for navigating a luminal network. The EM board generates an EM field. The EWC is configured to navigate the luminal network toward a target following the pathway plan. The EM sensor extends distally from a distal end of the EWC and is configured to sense the EM field. The US transducer extends distally from a distal end of the EWC, generates US waves, and receives US waves reflected from the luminal network. The processor processes the sensed EM field to synchronize a location of the EM sensor in the 3D model, to process the reflected US waves to generate images, or to integrate the generated images with the 3D model.

Abstract: A system for ultrasound interrogation of a lung includes a memory, an electromagnetic (EM) board, an extended working channel (EWC), an EM sensor, a US transducer, and a processor. The memory stores a three dimensional (3D) model, a pathway plan for navigating a luminal network. An EM board generates an EM field. The EWC is configured to navigate the luminal network of a patient toward a target following the pathway plan and the EM sensor extends distally from the EWC and senses the EM field. The US transducer extends distally from a distal end of the EWC and generates US waves and receives US waves reflected from the luminal network and the processor processes the sensed EM field to synchronize a location of the EM sensor in the 3D model, to process the reflected US waves to generate images, or to integrate the generated images with the 3D model.

Abstract: An ultrasound diagnostic apparatus includes a head-mounted display that is mounted on a head of a user and has a camera unit configured to acquire a view image obtained by imaging a field of view in front of the user, and a puncture needle length calculation unit (46) that, in a case where at least a part of the puncture needle is imaged by the camera unit, recognizes the puncture needle by performing image analysis on the view image, and calculates a length of the puncture needle in the view image.

Abstract: The invention provides a system and a method for calculating a pulse wave velocity based on a plurality of intravascular ultrasonic pulses directed along a vessel. For each ultrasonic pulse, a plurality of echoes is received from a plurality of distances along the vessel. A first ultrasound Doppler signal is received from a first distance from the pulse origin and a second ultrasound Doppler signal from a second distance from the pulse origin. A first and second flow velocity metric is obtained based on the first and second ultrasound Doppler signal, respectively. The pulse wave velocity is calculated based on the time delay, which is based on the first flow velocity metric and the second flow velocity metric.

Abstract: Various methods and systems are provided for identifying connected regions in ultrasound images. An exemplary method includes acquiring ultrasound video data of an anatomical region while a force is being applied to induce movement within the anatomical region, the ultrasound video data including a plurality of ultrasound images. The method includes identifying two or more connected regions in one of the plurality of ultrasound images, generating a modified ultrasound image by graphically distinguishing the first connected region from the second connected region, and causing a display device to display the modified image.

Abstract: The disclosure relates to techniques for triggering magnetic resonance data acquisition. The techniques include detecting a respiration direction of a respiration signal of an acquisition subject, predicting in real time an amplitude peak value of an expiration signal in the current respiration period according to the real-time respiration signal of the acquisition subject, multiplying the amplitude peak value by a preset coefficient, and using the product as a trigger point threshold of the current respiration period. When it is determined that an expiration stage of the current respiration period is starting, the techniques also include calculating in real time or periodically the absolute value of the difference between the amplitude of the current expiration signal and the trigger point threshold currently calculated, and if the absolute value of the difference is less than a preset difference threshold, then triggering MR data acquisition.

Abstract: A multi-modal heart diagnostic system is provided. The diagnostic system can monitor heart activity and assists a user or operator in performing echocardiography. The system can include a positioning device that is placed on a patient's chest. The positioning device can incorporate several multi-modal sensors. The multi-modal sensors can measure different parameters associated with an assessment of heart activity. The multi-modal sensors can also be used to provide information that can assist an operator in positioning the probe within the positioning device to capture an echocardiogram.

Abstract: A method for generating magnetic resonance images of a subject includes performing, using a magnetic resonance imaging (MRI) system, an interrupted three-dimensional (3D) single shot unbalanced steady-state free precession (uSSFP) pulse sequence to acquire MR data for each of a plurality of partitions associated with a region of interest of a subject. The interrupted 3D single shot uSSFP pulse sequence may be configured to suppress blood signal in the region of interest. The MR data for each partition is acquired as a single shot along an in-plane phase-encoding direction and the acquisition of MR data for each partition is synchronized to a phase of a cardiac cycle. The method further includes generating, using a processor, an image with blood suppression based on the acquired MR data.

Abstract: The present disclosure is related to systems and methods for motion detection. The method includes obtaining, via at least one detection device, detection data of a subject located in a field of view (FOV) of a medical device. The method also includes determining motion data of the subject based on the detection data.

Abstract: Described here are systems and methods for monitoring airflow changes in a patient's airway during a medical procedure or as a general patient monitoring tool. Doppler ultrasound signals are acquired from the tracheal wall of the patient and parameters from those Doppler ultrasound signals are compared to baseline parameters. When a threshold change is detected, an alarm can be provided to a user to indicate respiratory compromise, which can include early airway compromise or airway obstruction.

Abstract: Described here are systems and methods for monitoring airflow changes in a patient's airway during a medical procedure or as a general patient monitoring tool. Doppler ultrasound signals are acquired from an anatomical region within the patient's airway (e.g., a tracheal wall, a cricothyroid ligament, other connective or cartilaginous tissue within the trachea, larynx, or pharynx) and parameters from those Doppler ultrasound signals are compared to baseline parameters, which may include inputting Doppler ultrasound signals to a suitably trained deep learning model or other machine learning algorithm. When a threshold change is detected, an alarm can be provided to a user to indicate respiratory compromise and/or failure, which can include early airway compromise, airway failure, and/or airway obstruction.

Abstract: A system and a method for Alzheimer's disease prediction using a neural network, a computer-readable recording medium with a stored program, and a computer program product are provided. The processor obtains a first brain MRI data, a second brain MRI data, a first neuropsychological assessment score, and a second neuropsychological assessment score. The processor obtains a plurality of image feature data according to the first brain MRI data and the second brain MRI data. Each image feature data is selected from a group consisting of a plurality of hippocampal subfield geometric change data. The processor obtains a neuropsychological change data according to the first neuropsychological assessment score and the second neuropsychological assessment score. The processor obtains an Alzheimer's disease prediction result according to the neural network module, the image feature data, and the neuropsychological change data.

Abstract: This disclosure describes a system that determines hemodynamic parameters of a patient. The system may include a transesophageal echocardiogram (TEE) probe including an ultrasound transducer comprising a matrix array of piezoelectric elements, the transesophageal echocardiogram (TEE) probe configured to obtain a plurality of clinically relevant views of the patient's heart from a single position. The system may include one or more processors, operatively connected to the TEE probe. The one or more processors are configured by machine-readable instructions to control the TEE probe by electronically steering an ultrasound beam provided by the ultrasound transducer to obtain the plurality of clinically relevant views of the patient's heart; receive the plurality of clinically relevant views of the patient's heart provided by the TEE probe; and determine one or more physiological parameters of the patient's heart based on the received plurality of clinically relevant views of the patient's heart.

Abstract: A panel may include an inner edge, an outer edge opposite the inner edge, and a probe holder apparatus formed in the panel between the inner edge and the outer edge. The probe holder apparatus may have a generally rectangular shape comprising a front outer corner, a rear outer corner, a front inner corner, and a rear inner corner. The probe holder apparatus may include a slot, at least one surface within the probe holder apparatus, and a cable guide. The slot may extend from a center of the probe holder apparatus through the outer edge of the panel. The at least one surface may be configured to receive a body of an ultrasound probe. The at least one surface may have a diameter. The cable guide may include an inclined surface protruding from the front outer corner of the probe holder apparatus.

Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes an ultrasonic probe and processing circuitry. The processing circuitry receives a reflected wave signal of an ultrasonic wave via the ultrasonic probe. The processing circuitry generates a reception signal based on the received reflected wave signal. The processing circuitry calculates blood flow information based on the reception signal. The processing circuitry detects a magnitude of blood flow velocity change based on the blood flow information calculated at a plurality of points in time. The processing circuitry performs smoothing processing on the blood flow information in time direction at an intensity determined in accordance with the detected magnitude of blood flow velocity change.

Abstract: Endovascular valve formation systems with imaging capabilities and associated devices and methods are disclosed herein. In some embodiments, a valve formation and imaging system can include, for example, (i) a valve formation device configured to access a vessel wall and dissect a portion of the vessel wall to form an autologous valve leaflet and (ii) an imaging device configured to image the vessel wall and components of the valve formation device during a valve formation procedure. In some embodiments, the imaging device is integrated into a distal end portion of the valve formation device. In some embodiments, the imaging device is a separate catheter device positionally coupled to the valve formation device and/or components thereof.

Abstract: A system and/or method for detecting a ferromagnetic object during surgery comprises a probe tip magnetoresistance device configured for insertion into a human or animal cavity and a probe base magnetoresistance device configured for remaining outside the cavity. The system and method detect the ferromagnetic object by comparing the electrical signals generated by the probe tip and the probe base magnetoresistance devices in response to the ambient magnetic field without generating a magnetic field to detect the ferromagnetic object.

Abstract: The present invention relates to an ultrasonic imaging system and a respective method. The ultrasonic imaging system includes a scanning assembly including an ultrasonic transducer, an adjustable arm, one end of the adjustable arm connected to the scanning assembly, and a counterweight, connected to the other end of the adjustable arm by means of a cable. The ultrasonic imaging system includes a transmission assembly comprising a drive unit and a transmission unit, the drive unit being capable of acting on the counterweight by means of the transmission unit so as to adjust a pressure applied by the scanning assembly to the tissue to be scanned and a control unit, sending a drive signal to the drive unit, and acquiring, on the basis of the drive signal, the pressure applied by the scanning assembly to the tissue to be scanned.

Abstract: The invention provides a system and a method for calculating a pulse wave velocity based on a plurality of intravascular ultrasonic pulses directed along a vessel. For each ultrasonic pulse, a plurality of echoes is received from a plurality of distances along the vessel. A first ultrasound Doppler signal is received from a first distance from the pulse origin and a second ultrasound Doppler signal from a second distance from the pulse origin. A first and second flow velocity metric is obtained based on the first and second ultrasound Doppler signal, respectively. The pulse wave velocity is calculated based on the time delay, which is based on the first flow velocity metric and the second flow velocity metric.