Abstract: Neuromuscular monitoring is described that uses a novel lead assembly and a monitor that can select the appropriate electrodes on the lead assembly and calibrate the stimulation signals applied to the patient through the lead assembly. The monitoring can also set a noise floor value to reduce the likelihood of an erroneous train of four calculations. The present system can automatically sense train of four response of a patient and reduce the likelihood of false train of four indications.

Abstract: In general, in one aspect, the invention relates to an apparatus. The apparatus is a universal workspace fitness controller that fits most fitness devices without the need to do a large retrofitting to the device in order to make the host fitness device a Smart workspace Fitness Device or a Smart Fitness Device.

Abstract: In general, in one aspect, the invention relates to a method for managing challenges between members or users of the Workspace Fitness Ecosystem. The method includes identifying the users by a user ID. Adding them to a challenge, monitoring the performance in the challenge and adapt the challenge or the settings at the Workspace Fitness Device to encourage the user to complete the challenge.

Abstract: A motion capture system includes a motion sensor having a flexible body and a fiber bragg gratings (FBG) sensor inserted into the body, a fixture configured to fix the motion sensor to a human body of a user, a light source configured to irradiate light to the motion sensor, and a measurer configured to analyze a reflected light output from the motion sensor, wherein the FBG sensor includes an optical fiber extending along a longitudinal direction of the body and a sensing unit formed in a partial region of the optical fiber and having a plurality of gratings, and wherein a change of a wavelength spectrum of the reflected light, caused by the change of an interval of the gratings due to a motion of the user, is detected to measure a motion state of the user.

Abstract: The present disclosure proves a system, device, computer program and method for classifying hearing loss based on audiogram data, as well as method and system for programming a hearing aid based on such data and classification.

Abstract: Systems and methods for a continuous monitoring of analyte values received from an analyte sensor system are provided. One method for a wireless data communication between an analyte sensor system and a mobile device involves storing identification information associated with a transceiver of the analyte sensor system, the identification information entered by a user of the mobile device via a custom application running on the mobile device; causing the custom application to enter a background mode; searching for advertisement signals; receiving an advertisement signal from the transceiver; authenticating the transceiver based on the identification information; prompting the user to bring the custom application to a foreground mode; causing the custom application to request a confirmation from the user that a data connection with the transceiver is desired; receiving the confirmation from the user; and completing the data connection with the transceiver.

Abstract: Systems and methods for processing, transmitting and displaying data received from an analyte sensor, such as a glucose sensor, are disclosed. In an embodiment, a method for transmitting data between a first communication device associated with an analyte sensor and a second communication device configured to provide user access to sensor-related information comprises: activating a transceiver of a first communication device associated with an analyte sensor at a first time; and establishing a two-way communication channel with the second communication device; wherein the activating comprises waking the transceiver from a low power sleep mode using a forced wakeup from the second communication device.

Abstract: Systems, methods, and sensor devices for identifying one or more changes in a stimulus-responsive hydrogel include a sensor device having (i) a sensing structure and (ii) a stimulus-responsive hydrogel associated with a first side of the sensing structure. The sensing structure includes a flexible thin film polymer and an electric sensing element capable of electric impedance change, and the hydrogel is configured to dimensionally change in response to predefined stimuli such that a dimensional change of the hydrogel causes a change in an impedance property of the electric sensing element. Systems including such a sensor device can additionally include a meter in electrical communication with the sensor device to identify changes in the impedance properties of the structure and/or a catheter sheath configured for placement within an in vivo environment and is sized and shaped to receive the sensor device within a lumen thereof.

Abstract: Disclosed are a method and device for detecting the concentration of total hemoglobin in blood. A differential path factor corresponding to a subject is determined according to a physiological parameter of the subject and a predetermined table of a corresponding relation between the physiological parameter and the differential path factor.

Abstract: A handheld lancing device having anesthetic feature includes a housing removably retaining a disposable lancet. A carriage suspended within the housing by an isolation assembly may receive the lancet. A motor in mechanical communication with the lancet produces vibrations transmitted to contact surface, which vibrate a target lancing site prior to and during piercing. The target site is vibrated for a predetermined period of time before deploying the lancet. The isolation assembly permits movement of the carriage and/or lancet within the housing in one direction while limiting movement in other directions, and further dampens the vibrations of the motor from the housing held by the user. A force sensor detects force applied by the pressing of the contact surface against the skin of the patient. An indicator(s) perceivable to the user identifies when predefined positions of the lancet are reached for initiating vibration then triggering the lancet.

Abstract: A monitoring device for detecting wetness in a garment is disclosed. The monitoring device of the present disclosure includes a clip removably attachable to the garment and having a printed circuit board and a plurality of pins in communication with the printed circuit board, a portion of the plurality of pins extending through a portion of the clip, wherein the plurality of pins include a first pin, a second pin, and a third pin, the first pin and the second pin aligned along a first axis of the clip and the third pin aligned along a second axis of the clip, the second axis spaced from the first axis, wherein, with the clip attached to the garment, the printed circuit board is in communication with the garment via the plurality of pins. Transmitters having built-in delay mechanisms configured to delay transmitting operational data for a period of time are also disclosed. The operational data may include moisture data and detachment information.

Abstract: The various embodiments disclosed here relate to systems, methods, and devices for monitoring bladder health. Certain implementations are directed to patients who require daily catheterization. The various embodiments have at least one tube coupled to a catheter, a pressure sensor, a pump, and a processor. Certain embodiments include a digital device with a software application capable of displaying the monitored readings.

Abstract: A pelvic floor muscle training and profiling apparatus for inserting into a body cavity of a human, said apparatus comprising; a body having a distal end, an opposite proximal end and an outer surface, the body extending between said ends, a sensor array encompassed in the body, the sensor array comprising a sensor unit, the sensor unit being adapted for detecting an exterior force applied to the outer surface of the body, a micro-control unit adapted to receive sensor data from the sensor array, wherein the sensor unit is adapted for detecting a specific position of the exterior force applied to the outer surface of the body.

Abstract: The purpose of the present invention is to diagnose a neurological disease such as dementia by using virtual reality, and the present invention receives a neurological disease-diagnosing problem from an external device, displays a virtual reality image through a display on the basis of the received neurological disease-diagnosing problem, and performs an examination using the virtual reality image according to user actions detected through various sensors. This process can be performed when linked with an external device such as a PC or a smart phone. Particularly, with respect to the neurological disease-diagnosing problem, the present invention includes: a first screen for introducing at least one object in a virtual reality space and hiding the same; and a second screen haying a question on the hidden object. According to the present invention, neurological disease such as dementia can be conveniently examined without inconveniencing or burdening a patient.

Abstract: Methods for the early sensing of tissue ischemia and/or infarctions within organs using the spectroscopic features of serum luminescence include (i) isolating serum from a blood sample, (ii) directing an excitation light at the serum, (iii) receiving an endogenous serum chromophore emission light from the excited serum, and (iv) determining a presence of an ischemic condition based on the intensity of the endogenous serum chromophore emission light. Methods of detecting organ dysfunction can include transmitting excitation light to luminal contents of a mammalian blood vessel comprising trace amounts of exogenous chromophores administered to the subject mammal via the circulatory system. Transdermal luminescence measurements from the trace amounts of exogenous chromophores can then be used to determine organ dysfunction.

Abstract: Provided herein are flexible, microfluidic epidermal systems and methods useful in the analysis of biofluids for biomarkers corresponding to a variety of conditions and methods of use. The provided systems configured to create conformal contact with the skin to allow for medical testing or screening, either in situ or later external laboratory testing. The described devices and methods may be used for cystic fibrosis screening, glucose monitoring, drug and/or alcohol testing, creatinine monitoring, urea monitoring, pH measurement and dialysis treatment efficacy testing.

Abstract: The disclosed invention provides a sensing device capable of concentrating a fluid sample with respect to a target analyte and a reference analyte, and measuring the target analyte and reference analyte in the concentrated sample. The invention includes a concentrator that may include a selectively permeable membrane, or a gel having an increasing density gradient. In another embodiment, the invention includes an air or gas gap between a fluid transport channel and the concentrator. In another embodiment, the sensing device includes a driver for electronically moving a fluid sample through the channel and membrane to cause concentration. In some embodiments, the invention may also determine the change in molarity of the fluid sample with respect to the target analyte, as the sample is concentrated by the device.

Abstract: The invention relates to a set of motion sensing devices HS mounted above and below the injured joint, a mobile application MobApp that receives sensor data, and a web server WS. The mobile application comprises a physiotherapists interface MPTI and a patient interface MPI, an Exercise definition module EDM, an assessment module ASMD and the movement analysis module MAM. The physiotherapist interface MPTI shows the patients their progress, the list of scheduled exercises, receives feedback and delivers assessments. The web server WS hosts a cloud-based database DB which keeps the relevant data, a Machine learning unit MLU and a physiotherapist interface WPTI. The claimed method, ensures an optimized monitoring of the physiotherapy of joints, by neutralizing within the Calibration and compensation unit CCU the influence of the position and drift of the motion sensors and also by implementing the Machine learning unit MLU and relevant algorithm.

Abstract: Aspects relate to a portable device that may be used to identify a critical intensity and an anaerobic work capacity of an individual. The device may utilize muscle oxygen sensor data, speed data, or power data. The device may utilize data from multiple exercise sessions, or may utilize data from a single exercise session. The device may additionally estimate a critical intensity from a previous race time input from a user.

Abstract: A surgical imaging system includes an endoscope, a processor, and a display. The endoscope includes an elongated shaft having a distal end portion, an imager attached to the distal end portion and configured to capture an image of tissue, an infrared transmitter attached to the distal end portion of the shaft for transmitting infrared light to tissue, and an infrared receiver attached to the distal end portion of the shaft for receiving infrared light reflected by the tissue. The processor is in communication with the infrared transmitter and the infrared receiver and is configured to identify generate a digital image of vasculature in the tissue based on data received from the infrared receiver. The display is configured to display the image of the tissue captured by the imager with the digital image of the vasculature overlaying the image of the tissue.

Abstract: A route selection assistance system enabling easy selection of a route of a living body lumen for delivering a medical instrument to a site within a living body via the living body lumen, a recording medium on which a route selection assistance program is recorded, and a route selection assistance method are disclosed. The route selection assistance system includes: a receiving section configured to receive an input of site information specifying a target site; an image obtaining section configured to obtain image information on a living body of a target patient; a route extracting section configured to extract a plurality of routes of a living body lumen; a ranking assigning section configured to assign rankings to the plurality of routes according to ease of delivery of the medical instrument and patient scores determined according to magnitude of a burden imposed on the target patient.

Abstract: A sleep stage classification system (330) is provided. A sleep stage analyzing is performed based on an output signal (100a) of a PPG sensor (100). An estimation unit (310) is adapted to estimate features associated to a respiratory effort of a user based on the output signal (100a) of the PPG sensor (100) and to output a respiratory effort feature signal. A respiratory effort determining unit (320) is adapted to determine to respiratory effort based on the respiratory effort feature signal from the estimation unit (310). A sleep stage classification unit (330) is adapted to classify a sleep stage of a user based on the determined respiratory effort from the respiratory effort determining unit (320) and to output a sleep stage classification signal (310).

Abstract: The present invention relates to a system and method for determining sleep quality parameters according to audio analyses, comprising: obtaining an audio recorded signal comprising sleep sounds of a subject; segmenting the signal into epochs; generating a feature vector for each epoch, wherein each of said feature vectors comprises one or more feature parameters that are associated with a particular characteristic of the signal and that are calculated according to the epoch signal or according to a signal generated from the epoch signal; inputting the generated feature vectors into a machine learning classifier and applying a preformed classifying model on the feature vectors that outputs a probabilities vector for each epoch, wherein each of the probabilities vectors comprises the probabilities of the epoch being each of the sleep quality parameters; inputting the probabilities vectors for each epoch into a machine learning time series model and applying a preformed sleep quality time series pattern function

Abstract: A method of characterizing a patient's disordered breathing during a sleeping period includes performing a first partial characterization of a time axis of an audio signal in order to learn the most prominent and highly relevant events. Only at a later stage, i.e., after sufficient observation of the highly relevant events, is a full segmentation of the entire time axis actually carried out. Linear prediction is used to create an excitation signal that is employed to provide better segmentation than would be possible using the original audio signal alone. Warped linear prediction or Laguerre linear prediction is employed to create an accurate spectral representation with flexibility in the details provided in different frequency ranges. A resonance probability function is generated to further characterize the signals in order to identify disordered breathing. An output includes a characterization in any of a variety of forms of identified disordered breathing.

Abstract: Monitoring the quality of sleep of an individual is essential for ensuring one's overall well-being. The existing methods for non-apnea sleep arousal detection are manual. A system and method for the non-apnea sleep arousal detection has been provided. The method uses a feature engineering based binary classification approach for distinguishing non-apnea arousal and non-arousal. A training data set is prepared using a plurality of physiological signals. A plurality of features are derived from the training data set. Out of those only a set of features are selected for training a plurality of random forest classifier models. A test sample is then provided to the plurality of random forest classifier models in the instances of fixed duration. This results in generation of prediction probabilities for each instances. The prediction probabilities are then used to predict the probabilities of non-apnea sleep arousal in the test sample.

Abstract: A method and system of obstructed area determination for sleep apnea syndrome are disclosed. The method comprising obtaining a snoring signal from an individual; obtaining a spectrogram of the snoring signal based on short-time Fourier Transform; obtaining a snoring signal feature based on a harmonic wave of the spectrogram; and obtaining a collapse index by comparing the snoring signal feature against a snoring signal feature-collapse index correlation database. The present invention enables the diagnosis of sleep apnea syndrome and determination the obstructed area for the sleep apnea syndrome with only the snoring signal of an individual during sleep.

Abstract: A system for measuring pain of a person, the system for use with the tissue of the person. Various sensors and detectors on the tissue provide signals to a controller for determining and indicating a pain level of the person.

Abstract: The present disclosure relates to a guiding/supporting structure and to a method for detecting surface deformations of body surfaces of living beings for determining suitable contact surfaces for guiding/supporting structures, which can be brought into contact with the surface of the living beings. The method comprises orienting a body part of the living being with respect to a detection device for at least partially detecting the surface shape of at least one surface area of the body part, detecting a first surface characteristic of the surface area when the body part is in a first load state, in particular a state with the muscles relaxed, detecting a second surface characteristic of the surface area when the body part is in a second load state, in particular a state with the muscles tensioned, and determining the local surface deformations resulting between the first load state and the second load state.

Abstract: A device for detection of tetrahydrocannabinol or THC in a sample includes a sensor including a substrate and a sensor medium on the substrate. The sensor medium includes at least one nanostructure, wherein at least one property of the sensor medium is dependent upon the presence of THC on a surface of the sensor medium. The device further includes electronic circuitry including at least one measurement system in operative connection with the sensor to measure a variable relatable to the at least one property of the sensor medium dependent upon the presence of THC.

Abstract: The present disclosure provides alert implants that comprise a medical device and an implantable reporting processor (IRP), where one example of such a medical device includes a component for a total knee arthroplasty (TKA) such as a tibial extension, a femoral component for hip replacements, a breast implant, a distal rod for arm or leg breakage repair, a scoliosis rod, a dynamic hip screw, a spinal interbody spacer, and tooling and methods that may be used to form the alert implant, and uses of such alert implants in the health maintenance of patients who receive the implant.

Abstract: The present disclosure provides alert implants that comprise a medical device and an implantable reporting processor (IRP), where one example of such a medical device includes a component for a total knee arthroplasty (TKA) such as a tibial extension, a femoral component for hip replacements, a breast implant, a distal rod for arm or leg breakage repair, a scoliosis rod, a dynamic hip screw, a spinal interbody spacer, and tooling and methods that may be used to form the alert implant, and uses of such alert implants in the health maintenance of patients who receive the implant.

Abstract: The invention relates to a method and a device for determining an incorrect positioning in the alignment of prostheses for the lower extremities, said method comprising the following steps: determining inertial measurement data and/or variables derived therefrom by means of at least one inertial sensor, over at least one walking cycle, for an extremity provided with a prosthesis; and comparing the inertial measurement data that has been determined and/or the variables derived therefrom with desired values and/or with measurement data that has been determined or variables derived therefrom for the corresponding extremity that is not provided with the prosthesis.

Abstract: The present invention is a Miniature Vein Enhancer that includes a Miniature Projection Head. The Miniature Projection Head may be operated in one of three modes, AFM, DBM, and RTM. The Miniature Projection Head of the present invention projects an image of the veins of a patient, which aids the practitioner in pinpointing a vein for an intravenous drip, blood test, and the like. The Miniature projection head may have a cavity for a power source or it may have a power source located in a body portion of the Miniature Vein Enhancer. The Miniature Vein Enhancer may be attached to one of several improved needle protectors, or the Miniature Vein Enhancer may be attached to a body similar to a flashlight for hand held use. The Miniature Vein Enhancer of the present invention may also be attached to a magnifying glass, a flat panel display, and the like.

Abstract: An optical sensing apparatus (10), a corresponding optical sensing method and a corresponding computer program configured to sense a property of a living being are provided. The optical sensing apparatus (10) comprises a contact surface (20) configured to be brought into contact with the skin (5) of the living being, a first optical sensor unit (30; 630) for providing a first optical signal and a second optical sensor unit (40; 640) for providing a second optical signal, wherein the first optical sensor unit (30; 630) and the second optical sensor unit (40; 640) are arranged on the contact surface (20) at a distance from each other, wherein the first optical sensor unit (30; 630) has a different protrusion length (50) from the contact surface (20) than the second optical sensor unit (40, 640). The optical sensing apparatus (10) allows a more reliable determination of a property of a living being.

Abstract: Disclosed is a smart, physiology monitoring mouthguard (SPMM) system and method for capturing various physiological data of athletes in real-time for health monitoring. The system is configured to provide real-time and/or recorded physiological data of an athlete to a user, and may be configured to record physiological data of the athlete for later retrieval using sensors and communication systems. Sensors may be chosen based on the anticipated activity or sport, the health and age of the athlete, and size and power requirements of the device. Sensors may include accelerometers, gyroscopes, thermometers, hydrometers, pH, electrolyte (e.g., potassium, sodium, etc.) sensors, and the like. These and other sensors may be configured to measure different physiological data of the athlete, including impact, body temperature, hydration, illness, heart rate, and the like. In some embodiments, sensors on the mouthguard are integrated with external sensors (e.g.

Abstract: Disclosed is a tooth-attach wearable device. The tooth-attach wearable device includes a body configured to attach to a tooth; a sensor device provided to the body, and configured to sense biometric information of a patient; and a communication controller provided to the body, and configured to store the biometric information sensed at the sensor device as data, and to transmit the stored data.

Abstract: Aspects presented herein are directed to techniques for eliminating acquisition related artifacts in electro-physiological recording. In order to eliminate artifacts in neural response recordings, a pair of recordings is made with, respectively, inverted and non-inverted polarity at one pair of electrodes. An the average of the two recordings will eliminate the acquisition artifact without the need for an extra recording, such as a baseline.

Abstract: A smart shoe, smart shoe system, and a method of a smart shoe are disclosed. A smart shoe system may be used for monitoring patient activity. The smart shoe system may include a shoe having a plurality of pneumatic pressure sensors. The pressure sensors may be configured to detect pressure at a plurality of points in the sole of the shoe. The smart shoe may also include a microprocessor coupled to the pressure sensors and a GPS integrated circuit. The GPS integrated circuit may be used for correlating position of the smart shoe system to activity data generated by the plurality of pressure sensors. Additionally, the smart shoe system may include a flash memory storage for storing data generated by the microprocessor and pressure sensors.

Abstract: A biosensor sheet includes a pressure-sensitive adhesive layer for attaching to a surface of a living body, and a probe disposed on the pressure-sensitive adhesive layer, wherein the probe has an exposure region in which the pressure-sensitive adhesive layer is exposed.

Abstract: Breast securement devices for imaging systems are provided. The securement device can include a breast tray configured to support a patient's breast. In one example, one or more walls extend from the breast tray to receive the patient's breast. In another example, a pair of arms pivotably extend at least partially over the breast tray to receive the patient's breast therebetween. In still another example, a membrane covers the breast tray and the patient's breast and selectively couples to the breast tray via a suction force. In yet another example, a paddle includes a plurality of flexible fingers that contour to the patient's breast, or includes an array of pins that independently slide within of the paddle and contour to the patient's breast, or includes a bladder having non-Newtonian fluid. Additionally or alternatively, a sling may receive the patient's breast and support the breast from below.

Abstract: Apparatuses and methods for displaying a blood pressure monitoring instrument reading along with inaccuracy values that vary over apparatus life and according to current operating conditions are disclosed. These inaccuracy values account for variability under different operating environments, over time and number of device measurement cycles, and across the range of possible instrument reading conditions. Determination of inaccuracy values may be based both on apparatus history and measurement under the current operating condition. Methods can further include informing a user of confidence in the instrument's current measurements based on the instrument's measurements and inaccuracy.

Abstract: In some embodiments, the method includes a creating a plurality of session records for a subject, generating a subject progression model based on the plurality of session records, and comparing the subject progression model to a health progression model. The method further includes determining, based on the comparing the subject progression model to the health progression model, at least one progression deviation and generating a notification including an indication of the at least one progression deviation. In some embodiments, the plurality of session records include both objective data and subjective data. In some embodiments, the objective data includes one or more of body motion data captured with an RGB-D camera or RGB camera and voice data captured with a microphone. In some embodiments, the subjective data includes one or more of self-reported data from the subject and physician-reported data associated with the subject.

Abstract: A magnetic resonance (MR) imaging device (10) repeatedly executes a navigator pulse sequence (40) to generate navigator data in image space as a function of time, and a motion signal (44) of an anatomical feature that moves with a physiological cycle (e.g. respiration) as a function of time is extracted from the navigator data. A concurrent physiological signal (16) as a function of time is generated by a physiological monitor (12, 14) concurrently with the repeated execution of the navigator pulse sequence. A gating time offset (50) is determined by comparing the motion signal of the anatomical feature as a function of time and the concurrent physiological signal as a function of time. The MR imaging device performs a prospective or retrospective gated MR imaging sequence (36) using gating times defined as occurrence times of gating events detected by the physiological monitor modified by the gating time offset.

Abstract: A map generator can be programmed to generate a multi-parameter graphical map by encoding at least two different physiological parameters for a geometric surface, corresponding to tissue of a patient, using different color components of a multi-dimensional color model such that each of the different physiological parameters is encoded by at least one of the different color components.

Abstract: A breast support platform for an x-ray imaging system includes a housing having a compression plate and a front wall, and a heating system disposed at least partially within the housing. The heating system is configured to heat at least a portion of the compression plate, at least a portion of the front wall, or at least a portion of the compression plate and the front wall. In an example, the heating system includes a transparent conducting film coupled to an inner surface of the housing. In another example, the heating system includes a blower disposed at least partially within the housing, and the blower is configured to channel hot air across an inner surface of the housing.

Abstract: X-ray procedure tables with improved structural strength that enable radiation shielding and integrated medical device and monitoring systems. The design allows the incorporation of an integrated patient support structure, radiation shielding and associated devices and conduits for medical care in procedures that employ X-ray imaging.

Abstract: The present invention relates to iso-centering an object of interest prior to computer tomography (CT) scanning for examination of a patient in a C-arm CT examination apparatus. In order to provide facilitated positioning and to overcome or at least minimize these drawbacks, a C-arm CT examination apparatus (10) for CT scanning for examination of a patient is provided. The apparatus comprises a patient support unit, an acquisition unit, a data processing and control unit, and a display unit. The patient support unit is configured to bed a patient, free of motion, on the patient support. The acquisition unit is configured to acquire scout images of the patient including the object of interest in a respective position of the apparatus having position parameters.

Abstract: A high-energy ray detector includes a detection unit in a vacuum container. The detection unit includes a first electron multiplier, a second electron multiplier, and an electron collector. Each of the first electron multiplier and the second electron multiplier has one or more MCPs each configured to emit electrons by interaction with an incident high-energy ray (?-ray, X-ray (in particular hard X-ray), or neutron ray), and multiply and output the electrons. The electron collector is transmissive for the high-energy ray. The electron collector is configured to collect the electrons multiplied and output from each of the first electron multiplier and the second electron multiplier, and output an electric pulse signal.

Abstract: The present invention relates to visualizing vascular structures. In order to provide further improved digital subtraction angiography, a device (10) for visualizing vascular structures is provided that comprises a data provision unit (12), a data processing module (14), and an output unit (16). The data provision unit is configured to provide a first sequence of non-contrast X-ray images of a region of interest of a patient for use as raw X-ray mask images. The data provision unit is also configured to provide a second sequence of contrast X-ray images of the region of interest of a patient for use as raw X-ray live-images. The processing unit is configured to perform a first spatial subtraction for the first sequence of non-contrast X-ray images resulting in a first sequence of spatial-subtracted mask images. The processing unit is also configured to perform a second spatial subtraction for the second sequence of contrast X-ray images resulting in a second sequence of spatial-subtracted X-ray live-images.

Abstract: A multiple frame x-ray imaging system is disclosed with capability of differential x-ray exposure of different input areas of an image intensifier or other x-ray detector. Collimators are provided to control the amount of radiation in various regions of the image and image processing is provided to provide the display of images of different qualities.