Abstract: A biometric apparatus includes a light source, an image sensor, a control circuit, and a signal processing circuit. The control circuit causes a light source to repeatedly emit a light pulse radiated onto a target part including a head of a target, causes an image sensor to receive a reflected light pulse which is caused as the light pulse is radiated onto the target part, causes the image sensor to output first image data indicating appearance of a face of the target, and causes the image sensor to output second image data according to distribution of an amount of light of at least one of components of the reflected light pulse. The signal processing circuit generates data indicating a state of the target based on a temporal change in the first image data and a temporal change in the second image data and outputs the data.

Abstract: There is described a system for determining a coronal artery tissue type. The system generally has an optical coherence tomography (OCT) imaging system being configured for acquiring an OCT image of coronal artery tissue; and a controller configured to perform the steps of: using trained feature extraction engines, extracting corresponding feature vectors comprising a plurality of features in at least a region of interest of the OCT image; using trained classification engines, determining corresponding preliminary coronal artery tissue types associated to the region of interest of the OCT image based on corresponding ones of the plurality of feature vectors; and using a majority voting engine, majority voting an output coronal artery tissue type associated to the region of interest of the OCT image based on the previously determined preliminary coronal artery tissue types.

Abstract: A sensing system includes a first radar sensing assembly and an analysis system. The first radar sensing assembly measures plural distances to a first target location at different times using radar. The analysis system receives the plural distances from the first radar sensing assembly and quantifies movements of a target object at the first target location at the different times by calculating differences in the plural distances measured by the first radar sensing assembly. The analysis system generates one or more first quantified activity level values indicative of the movements of the target object at the first target location using the differences in the plural distances that are calculated.

Abstract: A system for radiation therapy may obtain a plurality of sets of motion data each of which corresponds to one of a plurality of motion phases of a subject. A set of motion data corresponding to a motion phase may include first physiological motion data and second physiological motion reflecting a physiological motion during the motion phase. The first physiological motion data and the second physiological motion data may be collected via a medical imaging device and a first motion sensor, respectively. The system may also direct a radiotherapy device to deliver a radiation treatment to the subject according to a treatment plan. During the radiation treatment, the system may obtain target physiological motion data reflecting the physiological motion of the subject, the target physiological motion data being collected via a second motion sensor; and adjust the treatment plan to adapt to the physiological motion of the subject.

Abstract: The present disclosure provides a non-contact fatigue detection system and method based on rPPG. The system and method adopt multi-thread synchronous communication for real-time acquisition and processing of rPPG signal, enabling fatigue status detection. In this setup, the first thread handles real-time rPPG data capture, storage and concatenation, while the second thread conducts real-time analysis and fatigue detection of rPPG data. Through a combination of skin detection and LUV color space conversion, rPPG raw signal extraction is achieved, effectively eliminating interference from internal and external environmental facial noise; Subsequently, an adaptive multi-stage filtering process enhances the signal-to-noise ratio, and a multi-dimensional fusion CNN model ensures accurate detection of respiration and heart rate.

Abstract: A near-field sensor method and device for obtaining biomedical information is disclosed. A transmission-line aperture arrangement configured to guide electromagnetic waves and emit near-field fringing energy, is placed near the skin. The transmission line is excited at a narrow-band Gigahertz frequency. The near-field fringing energy emitted by the sensor device penetrates at least partially into the skin and underlying blood vessels, and this energy is partially absorbed and partially phase shifted in a time varying manner according to the changes in tissue physiology. The status of the sensor device is monitored over a plurality of time intervals, and changes in both the phase and the amplitude of the signals passing though the transmission line are used to determine biomedical information such as heart rates, PTT, blood pressure, and glucose levels. Various transmission-line configurations, and various reference transmission-line methods to reduce low-frequency noise, are also discussed.

Abstract: Systems, methods, and computer readable media related to aggregating and associated captured medical data are disclosed. They involve receiving an ID of a piece of equipment in a medical facility, location information for the equipment, and medical information captured by the equipment; and ascertaining a time of information capture by the equipment. They further involve performing a lookup in a data record to determine an identity of a particular patient assigned to a location associated with the location information and performing a lookup in a data structure to identify a medical record of the particular patient. They further involve establishing an association between the medical information captured by the equipment and the medical record to thereby enable access to the medical information through access to the medical record of the particular patient.

Abstract: A system and method of operating a surgical navigation system to determine the location of a point of interest (POI) in a 3D coordinate frame of a surgical tool (tool frame) using a calibrated imaging device to capture an image of a portion of the surgical tool's surface the calibrated imaging device having calibration data that enables a processor of the surgical navigation system to map from a 2D location in the image to a projection line in a 3D coordinate frame of the imaging device (image frame). The system is operated to determine a mapping between an image frame and a tool frame. The processor is operated to determine the location of the POI in the tool frame based on the image and the mapping between the image frame and the tool frame.

Abstract: A tracker, a surgical tracking system, and a method for operating the tracker are provided. The tracker comprises an interface configured to attach the tracker to a surgical object that is to be tracked. The tracker further comprises circuitry comprising a detector configured to detect electromagnetic radiation, wherein the circuitry is configured to generate a trigger signal upon detection of a change of intensity of electromagnetic radiation by the detector. The circuitry further comprises a plurality of emitters configured to emit electromagnetic radiation, wherein the circuitry is configured to control the plurality of emitters to emit electromagnetic radiation responsive to the trigger signal.

Abstract: A neuro-navigation accessory system includes components programmed to work with existing neural navigational software. The components include trackers or motion sensors, modified surgical instruments with motion sensors incorporated into the instruments, CT/MRI opaque fiducial(s), surgical head clamps(s), ready-to-use, surgery specific kits, magnetic-field calibration apparatus for magnetic navigation, and internal reference arrays.

Abstract: Blood flow monitors and methods of monitoring characteristics of tissue are described. An example method of monitoring characteristics of tissue includes: placing a tissue flap at a point of treatment, the tissue flap is a section of tissue that includes a blood vessel; attaching a first sensor to the tissue flap to monitor blood flow through the blood vessel; attaching the first sensor to a blood flow monitor that has a first visual display field and a second visual display field; attaching a second sensor to the tissue flap to monitor a characteristic of the tissue flap; attaching the second sensor to the blood flow monitor; activating the blood flow monitor to observe the blood flow through the first blood vessel and the characteristic of the tissue flap; and monitoring the blood flow through the first blood vessel over a period of time and the characteristic of the tissue flap.

Abstract: According to embodiment, an image processing apparatus comprising a specifying unit and a display controller. The specifying unit that specifies an acquisition position of an indicator relating to blood flow on a blood vessel-containing image collected by a medical image diagnostic apparatus. The display controller that displays the acquisition position on the blood vessel-containing image and displays the indicator on a display unit in association with the acquisition position.

Abstract: An airway visualization system is described herein having an elongate delivery sheath and defining at least one lumen therethrough, wherein the length is positionable within an airway of a subject. An isolation component positioned near or at a distal end of the elongate delivery sheath is expandable to at least partially obstruct the airway and a controller is in communication with the delivery sheath. The controller is also configured to manipulate a fluid flow through the at least one lumen whereby a pressure change within the airway of the subject is imparted sufficiently to at least partially expand or collapse the airway to alter the density of the airway.

Abstract: Systems and methods for determining if a wearable photoplethysmography device is correctly positioned in operating to medical signs of a user by using a classifier to determine if a signal is valid or invalid. In some embodiments, in using the classifier to determine in a signal is valid or invalid, a lean method of linear computational complexity and minimal memory complexity is provided for determining at the wearable photoplethysmography device if it is correctly positioned. In some embodiments, in using the classifier minimal computational complexity is used in determining at the wearable photoplethysmography device if it is correctly positioned.

Abstract: Systems, methods, and devices for generating a hybrid image are provided. A preoperative image may be received. A first intraoperative image may be received from an imaging device. The preoperative image and the first intraoperative image may be input into a hybrid model that combines the first intraoperative image with the preoperative image. A hybrid image comprising the preoperative image combined with the first intraoperative image may be generated with an output of the hybrid model.

Abstract: An apparatus and method for assessing vascular compliance in subjects with multiple sclerosis using sequential gas delivery is provided. The apparatus includes a gas delivery device and a processor. The processor controls the gas delivery device to deliver a first and second gas during a single inspiration. The first gas contains a mixture of oxygen and carbon dioxide necessary to target an end-tidal concentration of the two gases. The second gas includes a concentration of carbon dioxide equal to the target end-tidal concentration of carbon dioxide.

Abstract: The disclosure relates to an imaging apparatus for acquiring image data from a diagnostically-relevant body region of a patient comprising a sensor and a correction unit, wherein the at least one sensor is embodied to output a signal containing information on movement of the diagnostically relevant body region of the patient and the correction unit is embodied to receive the signal from the at least one sensor, and to apply a correction method in dependence on the signal to reduce the influence of the movement of the diagnostically relevant body region of the patient on an imaging examination. The disclosure further relates to a local coil for acquiring magnetic resonance signals in a frequency and power range of a magnetic resonance measurement, and a method for correcting patient movement.

Abstract: A system for constructing fluoroscopic-based three-dimensional volumetric data of a target area within a patient from two-dimensional fluoroscopic images including a structure of markers, a fluoroscopic imaging device configured to acquire a sequence of images of the target area and of the structure of markers, and a computing device. The computing device is configured to estimate a pose of the fluoroscopic imaging device for at least a plurality of images of the sequence of images based on detection of a possible and most probable projection of the structure of markers as a whole on each image of the plurality of images. The computing device is further configured to construct fluoroscopic-based three-dimensional volumetric data of the target area based on the estimated poses of the fluoroscopic imaging device.

Abstract: A plurality of modules are simultaneously positioned at locations that correspond to different angiosomes. Each of these modules has a front surface shaped and dimensioned for contacting a person's skin, a plurality of different-wavelength light sources aimed in a forward direction, and a plurality of light detectors aimed to detect light arriving from in front of the front surface. Each module is supported by a support structure (e.g., a strap or a clip) that is shaped and dimensioned to hold the front surface adjacent to the person's skin at a respective position. Perfusion in each of the angiosomes is monitored using these modules, and the surgeon can rely on this information to guide his or her intervention.

Abstract: A system for detecting tumoral masses in an unknown tissue is described, that can be coupled to an MRI system for receiving a number of unknown tissue scans, each scan comprising a corresponding plurality of MRI images relating to a group of voxels, each voxel being associated with a corresponding portion of unknown tissue, the MRI images of each scan being indicative of values of at least a corresponding initial parameter. The detection system determines for each voxel a corresponding probability value, indicative of the probability of the corresponding portion of unknown tissue including a corresponding tumoral portion. Furthermore, the detection system determines, for a plurality of voxel groups, a corresponding group aggressiveness value, indicative of the aggressiveness of the tumoral mass formed by the tumoral portions present in the corresponding portions of unknown tissue.