Abstract: According to one aspect of the present disclosure, an electromyography (EMG) circuit comprises a difference circuit, rectification circuit, offset removal circuit, and integration circuit. The difference circuit is configured to create an EMG signal based on a difference between two action potential voltages. Creation of the EMG signal introduces a voltage offset, not already present in the action potential voltages, that centers the EMG signal about a non-zero voltage. The rectification circuit is connected to the difference circuit and is configured to rectify the EMG signal about the non-zero voltage to create a rectified EMG signal. The offset removal circuit is configured to remove the voltage offset from the rectified EMG signal to create an adjusted EMG signal. The integration circuit is connected to the offset removal circuit and is configured to integrate the adjusted EMG signal to produce a first EMG output signal for a client device.

Abstract: According to at least one example, an ambulatory medical device is provided. The device includes a plurality of electrodes disposed at spaced apart positions about a patient's body and a control unit. The control unit includes a sensor interface, a memory and a processor. The sensor interface is coupled to the plurality of electrodes and configured to receive a first ECG signal from a first pairing of the plurality of electrodes and to receive a second ECG signal from a second pairing of the plurality of electrodes. The memory stores information indicating a preferred pairing, the preferred pairing being either the first pairing or the second pairing. The processor is coupled to the sensor interface and the memory and is configured to resolve conflicts between interpretations of first ECG signal and the second ECG signal in favor of the preferred pairing.

Abstract: This invention is finger ring with an electromagnetic energy sensor for monitoring a person's food consumption. In an example, this device can monitor a person's food consumption by measuring changes in the electromagnetic impedance, resistance, conductivity, or permittivity of finger tissue. In an example, this finger-worn device can comprise an electromagnetic resonator between an electromagnetic energy emitter and an electromagnetic energy receiver.

Abstract: Exemplary methods and systems may image an object of interest using one or more waveguide assemblies including gated elements. The gated elements may be configurable in a transmission state, a reception state, or a passive state. The exemplary methods and systems may deliver electromagnetic energy (e.g., microwave energy) to an object of interest using a gated element of a waveguide assembly configured in a transmission state and sample scattered field using a gated element of another waveguide assembly configured in the reception state while the remainder of gated elements are configured in the passive state.

Abstract: Provided among other things is a wearable microwave radiometer. For example, a wearable microwave radiometer apparatus for measuring relative temperature differences comprising: (a) a circumambient garment configured to fit snugly; (b) control flat, flexible radiometer antenna(s) fitted to, or configured to fit to, the garment; (c) active flat, flexible radiometer antenna(s) fitted to, or configured to fit to, the garment, which active antenna(s) are configured in the apparatus to be positioned in a spaced-apart manner relative to the control antenna(s); and (d) a radiometer configured to monitor microwave signal from the control and active antennas and fitted to, or configured to fit to, the garment, wherein the antennas are operatively connected to, or configured to connect to, the radiometer.

Abstract: A method of determining a measure of lean tissue mass for a segment of a subject, the method including, in a processing system, determining at least one impedance value at at least one frequency, the at least one impedance value representing the impedance of the segment, determining a tissue mass impedance parameter value using the at least one impedance value and determining a tissue mass indicator based at least in part on the tissue mass impedance parameter value.

Abstract: A coil housing for a magnetic resonance (“MR”) imaging apparatus, comprises an anatomy receiving space defined by the coil housing, shaped and sized to receive at least a portion of a patient's anatomy to be imaged and a spacer shaped to maintain the anatomy receiving space a first distance from a bore wall of the MR imaging apparatus, the first distance defining an imaging area of the MR imaging apparatus.

Abstract: A method of detecting whether a localization element is within or outside of an introducer sheath generally includes obtaining a localization signal from the localization element and detecting the state of the localization element relative to the sheath based upon the quadrature component of the localization signal. A baseline quadrature component is typically established with the localization element outside of the sheath. When the quadrature component deviates from this baseline value, it is indicative of the localization element being within the sheath. Conversely, when the quadrature component remains relatively close to the baseline value, it is indicative of the localization element being outside of the sheath. In an electrophysiology study, the state information can be used to take corrective action with respect to the data being collected.

Abstract: The present invention relates to a portable devise that is able to quantify spasticity. In one aspect, the invention allows clinicians to objectively quantify spasticity in an accurate and repeatable manner. The device is designed to accommodate for different limb sizes and includes an accelerometer and a force sensing resistor to obtain quantitative data. The device further includes a data acquisition module where the data collected can be processed and sent to an output device.

Abstract: A base station identifies user-wearable devices being worn by a user, wherein each of the user-wearable devices is battery powered, includes a plurality of sensors, performs wirelessly communication, and is worn on a separate portion of the user's body. For each of the user-wearable devices, the base station identifies a portion of the user's body on which the user-wearable device is being worn. The base station also identifies an activity in which the user is engaged, and identifies multiple types of sensor data to be sensed using the sensors of the user-wearable devices, to enable tracking of metric(s) relevant to the activity in which the user is engaged. The base station determines how to distribute sensing responsibilities for the multiple types of sensor data among the sensors of the user-wearable devices being worn by the user, and selectively activates and deactivates individual sensors of each of the user-wearable devices.

Abstract: A flexible electronic device is provided that includes electronics, metal traces, and other components at least partially encapsulated in a protective, corrosion- and fluid-resistant encapsulating adhesive coating. The device include electronics, sensors, and other components disposed on a flexible substrate that is configured to be mounted to a body or disposed in some other environment of interest. The encapsulating adhesive coating is flexible and adheres securely to the electronics, metal traces, and other components disposed on the flexible substrate. The encapsulating adhesive coating prevents voids from forming proximate the components within which water or other chemicals could be deposited from the environment of the device. The encapsulating adhesive coating could include silicone or other flexible highly adhesive substances. The encapsulating adhesive coating could be a conformal coating.

Abstract: Method and apparatus for providing calibration of analyte sensor including applying a control signal, detecting a measured response to the control signal, determining a variance in the detected measured response, and estimating a sensor sensitivity based on the variance in the detected measured response is provided

Abstract: A method for non-invasive blood glucose monitoring with a wearable device may include illuminating, with an electromagnetic source module of a wearable device, an area of skin of a user. The method may include measuring a scattered electromagnetic energy reflected from the area of skin with an electromagnetic receiver module of the wearable device. The method may include calculating, with a processor coupled to the electromagnetic receiver module, a blood glucose level in response to the measurement of the scattered electromagnetic energy reflected from the area of skin. The method may include communicating the blood glucose level to an information handling system. The electromagnetic source module may include a photodiode or a microwave module. The information handling system may include an application configured for a smart phone, tablet, or computer. The information handling system may include a memory configured for storing a historical record including multiple blood glucose levels.

Abstract: Methods and apparatus for providing multi-stage signal amplification in a medical telemetry system are provided.

Abstract: A method of manufacturing a skin pricking lancet includes: thermoforming a plastic component; locating the thermoformed component and, optionally, one or more further plastic components around a lancet mechanism; and joining the located component(s) to form a hermetically sealed enclosure surrounding the lancet mechanism, the component(s) being formed and joined to provide a housing that structurally supports the lancet mechanism during use, and a cap breakable from the housing to facilitate firing of the lancet mechanism.

Abstract: Aspects of the disclosure are directed to detecting physiological and/or other characteristics of subjects. As may be implemented in accordance with one or more embodiments, a time series of cardiac intervals is computed from a recording of activity of a beating heart of a subject, and the time series is decomposed into subcomponents. An envelope of at least one of the subcomponents is computed, and the presence and/or degree of a depressive or stressed mental state of the subject is detected based upon characteristics of the envelope.

Abstract: An example of an information processing system includes a hand-held terminal. The hand-held terminal senses sensor information for determining an emotion of a user. The sensor information may be, for example, information of a sound sensed by a microphone, or information of an image captured by a camera. The information processing system determines the emotion of the user on the basis of the sensor information. The hand-held terminal senses the sensor information in a period during which the hand-held terminal is in a standby state. The standby state is, for example, a state in which a display of the hand-held terminal is turned off.

Abstract: We have developed a novel AKI diagnostic algorithm upon KID 2009 database. The KID is multi-featured and the AKI and non-AKI groups are highly imbalanced, making it challenging to describe them via simple linear statistics. Thus, to identify features effectively, our AKI association studies employed statistical learning strategies; a predictive model was created to accurately determine which KID data elements were highly associated with an AKI diagnosis. We employed prediction analysis of microarrays (PAM), which is commonly applied to high-feature datasets such as DNA microarrays; PAM determines which data elements, or features, best contribute to the predictive model or characterize individual classes/cohorts, Clinical Classification Software codes (286 diagnosis, 231 procedural) were used to bin ICD-9-CM codes (n=6,722) and analyzed by PAM. PAM identified relevant AKI predictors and eliminated irrelevant data elements, which constitute noise.

Abstract: Optical methods, devices, and systems for noninvasively detecting transient surface displacements in a neuron are disclosed. Methods, devices, and systems provided may employ a phase-sensitive optical low coherence reflectometer. In addition, surface displacements due to action potential propagation in neural tissues may be detected in some embodiments using back-reflected light. According to some embodiments, exogenous chemicals or reflect ion coatings are not required. Transient neural surface displacement of less than 1 nm in amplitude and 1 ms in duration may be detected and may be generally coincident with action potential arrival to the optical measurement site. The systems and methods may be used for noninvasive detection of various neuropathies such as retinal neuropathies. They may also be useful in detecting the effects of various pharmacological agents.

Abstract: A suite of components comprising an objective measurement medical data collection device and a cohort database may standardize, simplify, and objectify clinical outcomes tracking, culminating in population health measurements within the restorative neurosciences such as Parkinson disease individuals diagnosed with a disease. A data collection device may comprise one or more of a gyroscope, an accelerometer, a locator, a camera and a magnetometer for collecting, for example, data related to tremors experienced by the individuals diagnosed with disease and receive instruction data responsive to evaluation of the collected data in relation to the cohort database.

Abstract: The present invention includes a device and method for measuring skin elasticity that comprises: a probe with one or more holes, a vacuum source, a pressure sensor, and one or more infrared or optical proximity sensors aligned about the one or more holes, wherein the probe further comprises a raised area surrounding the one or more holes; and a processor for recording the deformation of the skin using a control unit comprising a microcontroller connected to the one or more infrared or optical proximity sensors and the one or more pressure sensors, to measure an amount of skin drawn into and out of the one or more holes to determine the distance between the one or more proximity sensors and the skin both inside and outside the probe.

Abstract: Described herein are systems and techniques for a motion capture system and a three-dimensional (3D) tracking system used to record body position and/or movements/motions and using the data to measure skin strain (a strain field) all along the body while a joint is in motion (dynamic) as well as in a fixed position (static). The data and technique can be used to quantify strains, calculate 3D contours, and derive patterns believed to reveal skin's properties during natural motions.

Abstract: A system for locating a patient's veins includes an illuminator configured to emit a conical beam for illuminating a target area of the patient and contrast between veins and surrounding tissue. The illuminator can be a short-wave infrared (SWIR) laser with a lens optic coupled to the SWIR laser for shaping the beam into a conical profile. The illuminator can be a visible light source with a reflective optic coupled to a filter configured to allow SWIR wavelengths therethrough.

Abstract: An in-line enterotomy detection device for use in a surgical procedure wherein access to an internal operating field is provided through a plurality of access ports and further wherein a pressurized insufflating gas is delivered to the internal operating field through one access port and vented from the internal operating field through another access port, the in-line enterotomy detection device comprising: a housing having an inlet, an outlet, and a passageway connecting the inlet to the outlet, the inlet being configured for connection to an access port venting gas from the internal operating field and the outlet being configured to vent gas from the in-line enterotomy detection device; and at least one non-electrical colorimetric enteric gas sensor disposed within the passageway for determining at least one of the presence of a selected enteric gas and the concentration of a selected enteric gas and indicating that presence by a visually-apparent change in appearance.

Abstract: Certain embodiments of the present invention provide methods of determining an efficacy of a xerostomia treatment in a mammalian subject (e.g., a human) that include the steps of comparing a first thickness of a site in the subject that comprised of sub-epithelial oral mucosa to a second thickness of the site; and thereby determining that: the xerostomia treatment is efficacious because the second thickness is greater than the first thickness; or the xerostomia treatment is not efficacious because the first thickness is greater than or equal to the second thickness. In such methods, assaying the first thickness comprises analyzing a first OCT scan of the site that was conducted at a time close to the subject starting the xerostomia treatment, and assaying the second thickness comprises analyzing a second OCT scan of the site that was conducted at a time close to the subject completing the xerostomia treatment.

Abstract: Systems and methods for monitoring/measuring parameters related to the use of devices/systems in various diagnostic/therapeutic applications are provided. The systems/methods communicate monitored/measured parameters to data processing and/or data display units for review and/or responsive action. Modular units may be provided for use with orthotic devices, e.g., arm slings and orthotic boots for foot and lower leg immobilization, and in conjunction with prosthetic devices, e.g., prosthetic arms and/or legs. The sensing/feedback mechanisms may be strap-based, or mounted/associated with webbing, ratchet systems and/or other tensioning mechanisms. The sensing/feedback mechanism may include an inductive sensor that interacts with conductive material embedded in a strap to produce a signal indicating the location of the inductive sensor with respect to the strap. The position sensor may include multiple coils and multiple conductive materials may be imbedded in the strap.

Abstract: Systems and methods for monitoring/measuring parameters related to the use of devices/systems in various diagnostic/therapeutic applications are provided. The systems/methods communicate monitored/measured parameters to data processing and/or data display units for review and/or responsive action. Modular units may be provided for use with orthotic devices, e.g., arm slings and orthotic boots for foot and lower leg immobilization, and in conjunction with prosthetic devices, e.g., prosthetic arms and/or legs. The sensing/feedback mechanisms may be strap-based, or mounted/associated with webbing, ratchet systems and/or other tensioning mechanisms. The sensing/feedback mechanism may include an inductive sensor that interacts with conductive material embedded in a strap to produce a signal indicating the location of the inductive sensor with respect to the strap. The position sensor may include multiple coils and multiple conductive materials may be imbedded in the strap.

Abstract: A cerebrospinal fluid (CSF) detection device includes a headband including at least four electrodes integrated into the headband. The electrodes are configured to make electrical contact with a person's head when the headband is placed on the person's head. The CSF detection device also includes an impedance circuit integrated into the headband and coupled to the at least four electrodes. The impedance circuit includes memory and an impedance analyzer coupled to the at least four electrodes and is configured to measure an impedance of the person's head. A first pair of the at least four electrodes is used by the impedance circuit to inject an electrical signal into the person's head and a second pair of the electrodes are used by the impedance analyzer to sense a signal. The first pair of electrodes is interleaved within the headband with respect to the second pair of electrodes.

Abstract: A releasable holder for a wearable electronic device, the releasable holder comprising a shell, a hinged clasp, and a release switch. The shell is configured to engage a first slot of the wearable electronic device against a first wall of the shell. The hinged clasp is attached to a second wall of the shell and the hinged clasp is configured to engage a second slot of the wearable electronic device, the shell and hinged clasp together retaining the wearable electronic device within the shell of the releasable holder. A release switch is attached to the second wall of the shell and configured to disengage the clasp from the second slot of the wearable electronic device, releasing the wearable electronic device from the shell.

Abstract: A personal information system is provided. The system may include a portable information device having a housing including a top surface defined at least partially by a display, a bottom surface configured with a central region in which an optical sensor, electrical connector, and data connector are positioned, the housing enclosing an internal volume in which a processor is provided, the top surface and bottom surface being coupled by a perimeter side edge extending therebetween, and a mounting structure formed at least partially around the perimeter side edge of the housing. The system may further include a frame, which may be connected to a band, the frame surrounding a void and configured to receive the mounting structure, the frame and mounting structure being releasably securable via a tongue and groove connection. The system may further comprise a dock to which the information device may be connected.

Abstract: A biomedical sensor has conducting elements disposed at least partly over a skin-facing surface. A sensing element detects a signal representative of a physiological parameter of a body using the conducting elements. A storage device stores a physiological model. A processor determines sensor placement quality by comparing the signal to the model and operates an indicator to indicate the determined quality. A method of measuring using the sensor includes computing a measurement acceptance criterion using numerous measurements, determining whether a subsequent test measurement corresponds to the measurement acceptance criterion obtained from the computing step, and indicating the results via the indicator. A system for measuring a physiological property of the body includes the sensor, a user interface device to receive measurements from the sensor, and a processor associated with the user interface device and configured to provide feedback if the measurement does not meet a selected acceptance criterion.

Abstract: A system and method implement biometric sensing with sensor fusion. A first sensor is coupled with a user and is capable of sensing a first characteristic of the user. A second sensor is coupled with the user and is capable of sensing a second characteristic of the user. A memory stores software with machine readable instructions that when executed by a processor implement an algorithm to correct for motion artifacts included within the second characteristic based upon activity of the user determined from the first characteristic.

Abstract: A body-mountable device may include a first layer, a second layer, and an electronic structure. The first layer may include a first topographical feature, while the second layer may include a second topographical feature. The first topographical feature and the second topographical feature may be reciprocally-shaped. The second layer may be mounted on the first layer such that the first topographical feature interfaces with the second topographical feature, thereby mechanically securing the second layer to the first layer. The electronic structure, which may include an antenna, a sensor, and an electronic device, may be embedded in the second layer. In an example in which the body-mountable device is an eye-mountable device, the first layer may be a posterior lens, and the second layer may be an anterior lens.

Abstract: A prenatal monitor assembly for monitoring an in utero babys' heart rate and uterine contractions. The assembly includes a belt that may be worn around a pregnant woman's abdomen. A first coupler is attached to the belt and a second coupler is attached to the belt. Each of the first coupler and the second coupler are complementary wherein the first coupler and the second coupler may retain the belt around the pregnant woman's abdomen. A monitor is attached to the belt to monitor a heart beat of the in utero baby and uterine contractions. A panel is provided. A primary coupler is coupled to the panel and a secondary coupler is coupled to the panel. The primary coupler is complementary with respect to the first coupler and the secondary coupler is complementary with respect to the second coupler wherein the panel increases a diameter of the belt.

Abstract: An adhesive wearable device includes a cover assembly, a sensor assembly and an electronic module. The cover assembly includes a top cover. The top cover defines an accommodating chamber and a plurality of exhaust holes. The sensor assembly includes a sensor board, and an adhesive pad mounted under the sensor board. The sensor board defines a plurality of through-holes. A bottom surface of the sensor board is equipped with a plurality of sensor units. The adhesive pad defines an opening corresponding to the sensor units, a plurality of perforations and guiding channels extending radially from the opening to the perforations. The electronic module is disposed on and is electrically connected with the sensor board. The cover assembly covers up the sensor assembly and the electronic module. The exhaust holes are communicated with the opening by virtue of the accommodating chamber, the through-holes, the perforations and the guiding channels.

Abstract: A multiple-point basket-type or crown-shaped catheter device provides simultaneously mapping over a three-dimensional (3D) region of a subject, such as, one or more chambers of a subject's heart. The catheter device may include a series of splines each having a wave-like profile formed of a periodic series of peaks and troughs, with electrodes located at the peaks and troughs for mapping purposes.

Abstract: An electrophysiology system for mapping tissue includes a catheter having a plurality of electrodes. The system may be a catheter having a dense collection of small electrodes on its tip. The electrodes may be arranged in a pattern that is constant regardless of rotational orientation. The system may be an electrophysiology apparatus having a catheter, the catheter having a body with a proximal end and a distal end. At the distal end of the catheter body is a distal tip comprising a plurality of electrodes and/or coaxtrodes. A signal processor may be operably connected to the plurality of electrodes and/or coaxtrodes and can measure at least one electrophysiological parameter.

Abstract: An implantable device includes a body part and a piezoelectric part. The body part is configured to grasp a pulsatile organic or inorganic tissue. The piezoelectric part is mechanically coupled to the body part and is configured to convert a varying shear force transferred from the body part to the piezoelectric part into voltage. An implantable system, comprises the implantable device and a stent like object configured to be inserted and deployed within a pulsatile or static tissue. The implantable device is configured to form a sealed junction with the pulsatile tissue while pressing against an outer circumference area of the stent.

Abstract: Heart rate monitors are plagued by noisy photoplethysmography (PPG) data, which makes it difficult for the monitors to output a consistently accurate heart rate reading. Noise is often caused by motion. Using known methods for processing accelerometer readings that measure movement to filter out some of this noise may help, but not always. The present disclosure describes an improved front-end technique (time-domain interference removal) based on using adaptive linear prediction on accelerometer data to generate filters for filtering the PPG signal prior to tracking the frequency of the heartbeat (heart rate). The present disclosure also describes an improved back-end technique based on steering the frequency of a resonant filter in order to track the heartbeat. Implementing one or both of these techniques leads to more accurate heart rate measurements.

Abstract: Heart rate monitors are plagued by noisy photoplethysmography (PPG) data, which makes it difficult for the monitors to output a consistently accurate heart rate reading. Noise is often caused by motion. Using known methods for processing accelerometer readings that measure movement to filter out some of this noise may help, but not always. The present disclosure describes an improved front-end technique (time-domain interference removal) based on using adaptive linear prediction on accelerometer data to generate filters for filtering the PPG signal prior to tracking the frequency of the heartbeat (heart rate). The present disclosure also describes an improved back-end technique based on steering the frequency of a resonant filter in order to track the heartbeat. Implementing one or both of these techniques leads to more accurate heart rate measurements.

Abstract: An imaging apparatus includes: an imaging element that generates image data by photoelectrically converting light received by pixels; a filter array including a unit including different types of visible light filters with different transmission spectrum maximum values within a visible light band, and invisible light filters having a transmission spectrum maximum value in an invisible light range of wavelengths longer than those of the visible light band; a partial area detection unit that detects a partial area of the subject on an image corresponding to the image data; and a vital information generation unit that generates vital information on a subject based on image signals output by pixels, in an imaging area of the imaging element corresponding to the detected partial area, on which the invisible light filters are disposed.

Abstract: An example of a display system includes a sensor, a projector, and control means. The sensor senses user information for calculating a state regarding sleep of a user. The user information is, for example, biological information such as pulse. The projector projects and displays a predetermined image. The projector, for example, projects the image upward to project and display the image on the ceiling. The control means controls the projector in accordance with a state regarding sleep, which is calculated on the basis of the user information.

Abstract: Systems and methods are disclosed that facilitate providing guidance to a user during performance of a program or routine using a personalized avatar. In an aspect, a system includes a reception component configured to receive physiological and movement information about a user during performance of a routine or program, and an analysis component configured to analyze the physiological and movement information based on reference physiological and movement metrics for the routine or the program to determine whether, how and to what degree the user deviates from requirements of the routine or the program. The system further includes a reaction component configured to determine a response for an avatar displayed to the user based on a determination regarding whether, how and to what degree the user deviates from the requirements of the routine or the program, and an avatar control component configured to initiate manifestation of the response by the avatar as displayed to the user.

Abstract: An athletic performance monitoring display system is provided. The system includes a flexible display device having a flexible display screen, a first microprocessor, and an RF receiver. The flexible display screen has a first display area. The system further includes a monitoring device wore by a user that has a housing, a first physiological sensor, a second microprocessor, and an RF transmitter. The first physiological sensor generates a first physiological signal indicating a first physiological parameter. The second microprocessor induces the RF transmitter to transmit a first RF signal having a first binary parameter value representing the first physiological parameter. The RF receiver receives the first RF signal. The first microprocessor induces a graphical display object in the first display area to display the first physiological parameter.

Abstract: An X-ray CT apparatus 1 stores an image quality improvement table 3 indicating levels of image quality improvement effects for a plurality of image quality improvement processes in a storage device 123. In a case where imaging is performed while modulating an X-ray irradiation amount on the basis of predetermined dose modulation data, an image processing device 122 acquires a reference dose used as a reference of image quality, and acquires an irradiation X-ray dose during imaging for image reconstruction target projection data from the dose modulation data. The image processing device 122 determines an image quality improvement process for obtaining image quality used as a reference by referring to the image quality improvement table 3 on the basis of a ratio between the dose values, and performs the determined image quality improvement process on the reconstruction target projection data.

Abstract: An adapter to be used to position and restrain a patient's head movement during magnetic resonance imaging (MRI), computed tomography (CT) imaging, positron emission tomography (PET) imaging, X-ray imaging or other imaging or medical procedures. The adapter has a high degree of adjustability and modularity. The adapter can be fitted to a patient quickly and comfortably by offering translational, rotational and height adjustment during the fitting procedure, thereby reducing the overall time for the MRI. The adapter includes a base, one or more attachment members to selectively affix the base to an imaging table, a pair of upwardly extending spaced-apart supports attached to the base, a stabilizer frame rotatably attached to the pair of supports, and a locking mechanism to selectively prevent rotation of the frame attached to the pair of supports.

Abstract: This invention relates to a multiple frame imaging system including radiation source, a detector having an input area, a monitor configured to display detected images, means for determining at least one Region of Interest (ROI) of an object on the displayed image, and a collimator having means for projecting the at least one region of interest (ROI) on at least one selected fraction of the input area exposed by the x-ray source. The collimator including at least three essentially non-overlapping plates mounted in a plane generally parallel to the detector input surface plane, each plate includes a first edge in contact with an edge of a first neighboring plate and a second edge adjacent to the first edge in contact with an edge of a second neighboring plate; and means for moving each one of the plates.

Abstract: This invention relates to an imaging method of a zone of a patient's body, comprising: imaging said zone including an object of interest, superposing at least one graphical marking with regular and known spacing to said object of interest to make a combined image of said zone, displaying said combined image, wherein said marking orientation is similar to the orientation of said object of interest on said combined image.

Abstract: A radiological image sensor has an electronic substrate and an imaging chip held within a housing, the imaging chip having electronics that create a dead space, with a cable attached to the housing at a cable button connector, the dead space being at a short distal side of the generally rectangular sensor opposite the short mesial side at which the cable exits the cable button connector. The mesial side of the sensor either does not have a dead space created by electronics of the imaging chip or the dead space found on the mesial side of the sensor is less than approximately 4 mm, and, preferably, approximately 2 mm or less. The cable can be a flat cable with a length of approximately one meter or less that can be connected to a round cable.

Abstract: Digital tomosynthesis systems, methods, and computer readable media for intraoral dental tomosynthesis imaging are disclosed. In some aspects, an intraoral tomosynthesis imaging system includes an x-ray source array for positioning outside a mouth of a patient, wherein the x-ray source array contains multiple x-ray focal spots that are spatially distributed on an anode, an area digital x-ray detector for positioning inside the mouth of the patient, a geometry calibration mechanism for connecting the x-ray detector to the x-ray source array, an x-ray collimator for confining x-ray beams to a region of interest, a controller for regulating x-ray radiation and synchronization of the x-ray radiation with the x-ray detector, such that multiple 2D projection images of the ROI are acquired without mechanical motion of the x-ray source array, the x-ray detector, or the mouth of the patient, and a computer program and workstation for 3D tomosynthesis image reconstruction and display.