Abstract: A system and method for imaging tissue including an endoscope capable of illuminating tissue with white and near infrared light. The method includes detecting the fluorescence and displaying the detected fluorescence in combination with white light images.

Abstract: Disclosed herein is a medical system (100, 300, 500) comprising a processor (104) configured for controlling the medical system and a memory (110) for storing machine executable instructions. Execution of the instructions causes the processor to receive (200) four-dimensional Dixon magnetic resonance image data (122). The four-dimensional Dixon magnetic resonance imaging data is T1 weighted. The four-dimensional Dixon magnetic resonance image data is synchronized to a respiratory signal (124). Execution of the instructions further causes the processor to reconstruct (202) synthetic four-dimensional computed tomographic image data (12) from the four-dimensional Dixon magnetic resonance imaging data. The four-dimensional Dixon magnetic resonance imaging data is synchronized to the respiratory signal.

Abstract: An embodiment of the present invention provides a scanning control system for a magnetic resonance imaging system, comprising: a first 3D camera, configured to capture a three-dimensional image of a scan subject located on a scanning table of the magnetic resonance imaging system; a processing device, configured to identify body position information of the scan subject based on the three-dimensional image; and a control device, configured to set scanning parameters related to a body position based on the body position information.

Abstract: Provided are a medical image displaying apparatus and a medical image displaying method for registering an ultrasound image with a previously obtained medical image and outputting a result of the registration, the medical image displaying method including: transmitting ultrasound signals to an object and receiving ultrasound echo signals from the object via an ultrasound probe of the medical image displaying apparatus; obtaining a first ultrasound image based on the ultrasound echo signals; performing image registration between the first ultrasound image and a first medical image that is previously obtained; obtaining a second ultrasound image of the object via the ultrasound probe; obtaining a second medical image by transforming the first medical image to correspond to the second ultrasound image; and displaying the second medical image together with the second ultrasound image.

Abstract: Disclosed herein is to a posture monitoring device for measuring and correcting a user's posture by utilizing a resistance element which is elastic and has a resistance which is changed according to mechanical strain. The posture monitoring device includes a first elastic resistance element and a second elastic resistance element which are configured to be attached onto skins of the first part and the second part or inserted into the skins, disposed to measure the degree of stretching of the skin of the first part in a longitudinal direction of the spinal column, and made of a conductive material to have elasticity, a power supply device for applying a current or a voltage to the first elastic resistance element, and the second elastic resistance element, and a communication module for transmitting data output from the first elastic resistance element and the second elastic resistance element to a controller.

Abstract: A device including a contact tonometer tip having a bi-curved cornea-contacting surface structured to reduce, during the tonometric measurement, at least the measurement error caused by the presence of a fluid film between the tip and the cornea and/or the intra-corneal stress formed during the applanation deformation and occurring at a location of the tip-to-cornea contact area. Method for using such device for measurement of intraocular pressure while procuring values IOP with increased accuracy as compared to those obtained with the use of a conventional flat-surface tonometer tip. The cornea-contacting surface includes a first central portion and a second portion that encircles and adjoins the first central portion. The curvatures of the first and second portions have opposite signs. In one case, the first central portion has a curvature with the same sign as that of the cornea and/or is rotationally-symmetric.

Abstract: Systems and methods for providing image guidance for motion tracking and compensation in magnetic resonance imaging (“MRI”) guided therapies, such as MRI-guided radiation therapies using an MR-linac or other MRI-guided radiation therapy system, are described. Simultaneous orthogonal plane imaging (“SOPI”) is used to acquire images from a first slice that remains static throughout the acquisition, and from a plurality of slices that are orthogonal to the first slice. This first slice can be referred to in some instances as a “tracking” or “navigator” slice, and the plurality of slices that are orthogonal to the first slice can be referred to as “imaging” slices. The tracking slice images can be used to estimate motion of the subject that occurred during the data acquisition, and to track the position of targets (e.g., anatomical targets) during the delivery of radiation treatment.

Abstract: Apparatus for the assessment of electrophysiological signals obtained from a patient, the apparatus comprising: a housing; a support arch pivotally mounted to the housing, the support arch comprising a plurality of facial contact point supports for supporting contact points on the face of the patient relative to the support arch without supporting the chin of the patient; at least one display screen for presenting a stimulus to a single eye of the patient, the at least one display screen being movable relative to the support arch; and control electronics disposed within the housing for driving the at least one display screen and for amplifying electrophysiological signals obtained from the patient.

Abstract: An apparatus for estimating cardiovascular information includes: a main body; and a strap connected to the main body and formed to be flexible to be wrapped around an object, wherein the main body may include: a pulse wave measurer configured to measure, from the subject, a first pulse wave signal by using a first light of a first wavelength, and a second pulse wave signal by using a second light of a second wavelength, the first wavelength being different from the second wavelength; a contact pressure measurer configured to measure a contact pressure between the object and the pulse wave measurer; and a processor configured to extract a cardiovascular characteristic value based on the first pulse wave signal, the second pulse wave signal, and change in the contact pressure, and estimate cardiovascular information based on the extracted cardiovascular characteristic value.

Abstract: A system may include a bottom layer and a sensing layer disposed on a first side of the bottom layer. The first sensing layer may include a first sensing element and a second sensing element. The first sensing element and the second sensing element may include one of: a force sensing element, a strain sensing element, a motion sensing element, or an environmental sensing element. The first sensing element and the second sensing element may be of a different type of sensing element. The system may also include a communications interface configured to couple the sensing layer with a host controller.

Abstract: An optical measurement system comprising an optical source configured for delivering sample light in an anatomical structure, such that the sample light is scattered by the anatomical structure, resulting in physiological-encoded signal light that exits the anatomical structure, an optical detector configured for detecting the physiological-encoded signal light, and a processor configured for acquiring a TOF profile derived from the physiological-encoded signal light, the initial TOF profile having an initial contrast-to-noise ratio (CNR) between a plurality of states of a physiological activity in the anatomical structure. The processor is further configured for applying one or more weighting functions to the initial TOF profile to generate a weighted TOF profile having a subsequent CNR greater than the initial CNR between the plurality of states of the physiological activity.

Abstract: The invention provides a method for estimating the weight of a fetus. A plurality of different three dimensional ultrasound images of an imaging region are acquired, wherein the plurality of different three dimensional ultrasound images comprise: a head image; an abdominal image; and a femur image. Each of the plurality of different three dimensional ultrasound images undergoes segmentation and the fetal weight estimation is performed based on the resulting segmentations.

Abstract: An optical device is used to monitor an implant embedded in the tissue of a mammal (e.g., under the skin). The implant receives excitation light from the optical device and emits light that is detected by the optical device, including an analyte-dependent optical signal. Scatter and absorption properties of tissue change over time due to changes in hydration, blood perfusion and oxygenation. The optical device has an arrangement of light sources, filters and detectors to transmit excitation light within excitation wavelength ranges and to measure emitted light within detection wavelengths. Changes in scattering and absorption of light in the tissue, such as diffuse reflectance, are monitored. The light sources, filters and detectors may also be used to monitor autofluorescence in the tissue to correct autofluorescence background.

Abstract: Various embodiments of the present disclosure are directed towards a magnetic resonance imaging (MRI) knee coil comprising a local shim coil. The local shim coil is disposed in a housing of the MRI knee coil. An electromagnetic coil is also disposed in the housing and spaced from the local shim coil. The local shim coil comprises one or more conductors. Each of the conductors of the local shim coil are disposed on a semi-cylindrical surface, and the semi-cylindrical surface extends laterally from a first side of the housing to a second side of the housing. The local shim coil is configured to generate a local shimming magnetic field that reduces a localized magnetic field inhomogeneity caused by a susceptibility artifact disposed in a knee of a patient.

Abstract: In accordance with a method for characterization of particles in a fluid-filled hollow structure, an ultrasound signal with a frequency spectrum, which exhibits a local maximum at a variable measurement frequency, is emitted in the direction of a part area of the hollow structure and reflected components are detected. The measurement frequency is tuned in a predetermined measurement interval, and depending on the detected reflected components, a spectral response curve is acquired as a function of the measurement frequency. Depending on the response curve, at least one characteristic property for a part of the particles located in the part area of the hollow structure is determined. The characteristic property includes a measure for an adhesion of the particles of the part of the particles located in the part area of the hollow structure.

Abstract: A method for processing a neural measurement obtained in the presence of artifact, in order to detect whether a neural response is present in the neural measurement. A neural measurement is obtained from one or more sense electrodes. The neural measurement is correlated against a filter template, the filter template comprising at least three half cycles of an alternating waveform, amplitude modulated by a window. From an output of the correlating, it is determined whether a neural response is present in the neural measurement.

Abstract: An ultrasound imager provides for LAA closure guidance. Using ultrasound imaging allows for modeling over time (e.g., throughout a heart cycle). An anatomy model of the LAA over time is used to create a biomechanical model personalized to the patient. The personalized models and a model of one or more closure devices are used to select a closure device for the patient appropriate for the entire heart cycle and to guide placement of the selected closure device during an implantation.

Abstract: The present disclosure may provide a method. The method may include obtaining a PET dataset relating to a subject acquired, based on a tracer species in the subject, by a PET device. The PET dataset relating to the subject may be acquired for a time period when the subject moves by moving a couch on which the subject is supported. The time period may include a first time segment and a second time segment. The method may also include determining an activity distribution set of the tracer species in the subject within the time period. The activity distribution set may include a plurality of segment activity distributions. Further, the method may include determining an offset of the couch within the second time segment with respect to the first time segment based on the activity distribution set of the tracer species.

Abstract: An ultrasound signal processing device including a transmitter, a receiver, an observation point setter, and a frame generator. The transmitter repeatedly performs a transmission event, changing a position of a transducer array for each transmission event, the transmission event including selecting the transducer array from transducers on an ultrasound probe and outputting a drive signal driving the transducer array to transmit focused transmitted ultrasound. The receiver receives signals from the ultrasound probe to generate signal sequences, the signals being based on reflected ultrasound acquired by the ultrasound probe. The observation point setter sets observation points corresponding to positions in the subject. The frame generator generates a frame acoustic line signal based on the signal sequences corresponding to each of the observation points. The observation points are set such that observation points in a region shallower than a focal region each correspond to only one transmission event.

Abstract: A tubing assembly for electronic catheter guidance systems is provided and can include a catheter, an internal acoustic transducer and an external acoustic transducer. The catheter extends in a longitudinal direction and has proximal and distal ends that define a lumen therebetween. Further, the catheter is configured for placement within a patient's digestive or respiratory tract. The internal acoustic transducer can be located within the catheter's lumen, and the external acoustic transducer can be located on or outside the patient's body. The transducers can transmit and/or receive acoustic signals as directed by a processor and communicate with the processor to deliver sound data to a display device. The frequency response and/or attenuation of the signals can indicate placement of the catheter in the digestive tract compared to the respiratory tract. A catheter guidance system and method for accurately placing a catheter in the digestive or respiratory tract are also provided.