Abstract: A device for obtaining physiological information of a medical patient and wirelessly transmitting the obtained physiological information to a wireless receiver.

Abstract: Described here are meters and methods for sampling, transporting, and/or analyzing a fluid sample. The meters may include a meter housing and a cartridge. In some instances, the meter may include a tower which may engage one or more portions of a cartridge. The meter housing may include an imaging system, which may or may not be included in the tower. The cartridge may include one or more sampling arrangements, which may be configured to collect a fluid sample from a sampling site. A sampling arrangement may include a skin-penetration member, a hub, and a quantification member.

Abstract: An imaging method may include: emitting a first laser to a target body and receiving a first photoacoustic signal returned from the target body; determining a first photoacoustic image of the target body according to the first photoacoustic signal; emitting a second laser to the target body and receiving a second photoacoustic signal returned from the target body, wherein a wavelength of the second laser is different from that of the first laser; determining a second photoacoustic image of the target body according to the second photoacoustic signal; and determining a blood oxygen image of the target body according to the first photoacoustic image and the second photoacoustic image, wherein the blood oxygen image comprises parameters relate to blood vessels of a target tissue and parameters relate to blood vessels within a preset range at a periphery of the target tissue in the target body.

Abstract: The present invention generally relates to devices and techniques associated with diagnostics, therapies, and other applications, including skin-associated applications, for example, devices for delivering and/or withdrawing fluid from subjects, e.g., through the skin. In some embodiments, the device includes a system for accessing an extractable medium from and/or through the skin of the subject at an access site, and a pressure regulator supported by a support structure, able to create a pressure differential across the skin at at least a portion of the access site. The device may also include, in some cases, a sensor supported by the support structure for determining at least one condition of the extractable medium from the subject, and optionally a signal generator supported by the support structure for generating a signal relating to the condition of the medium determined by the sensor.

Abstract: A minimal action, invasive blood constituent device can streamline the process for the self-monitoring of blood-related tests by holding and facilitating the use of some or all of the tools for obtaining and testing a blood sample. The device can include a slider, that when pumped, causes the device to spring-load a lancet and eject a testing strip. The device can include a trigger that, when pressed, activates the lancet by unloading the spring. A strip-lancet apparatus can combine the roles of two disposable products—a testing strip and a lancing needle—into an apparatus that can be configured for piercing the testing site as well as receiving the blood sample. A testing strip apparatus can facilitate the use and/or disposal of testing strips. A lancet apparatus can facilitate the use and/or disposal of lancets.

Abstract: Disclosed is a method for attention training, which includes: acquiring a first electroencephalogram (EEG) data that is currently detected through an EEG headband worn by a user; determining an attention level of the user, based on the first EEG data; and in response that the attention level is lower than a preset attention level, controlling to execute a first program based on the attention level, wherein the first program corresponds to a training plan. A device for attention training and a computer readable storage medium are further disclosed.

Abstract: In one example of the description, a device may have an elongated body defining a lumen. The elongated body may have a proximal portion and a distal portion. An anchoring member may be positioned on the proximal portion of the elongated body. A first temperature sensor may sense a first temperature of a fluid at a first location in the lumen. A second temperature sensor may sense a second temperature of the fluid at a second location in the lumen. The first location may be proximal to the second location. A heating member may be located proximal to the second temperature sensor. The heating member may heat the fluid within the lumen.

Abstract: In one example, the disclosure relates to a catheter system comprising an elongated body defining a lumen where the elongated body comprises a proximal portion and a distal portion. An anchoring member may be positioned on the proximal portion of the elongated body. The system further comprising at least one sensor configured to be coupled to the elongated body where the at least one sensor may be configured to sense one or more parameters of a fluid within the lumen of the elongate body. Memory configured to be coupled to the elongated body where the memory may be configured to store sensor calibration information. The system configured to calibrate the at least one sensor based on the sensor calibration information stored by the memory.

Abstract: The present invention relates to an electrode (1) comprising: —at least one reservoir (11) comprising a peripheral wall (111) made of a foam material, wherein said reservoir (11) is filled with a viscous electrolytic paste (12); —at least one plate (13) comprising a conductor material, wherein said plate (13) is in contact with the electrolytic paste (12) and configured to conduct electrical signals to a recording device; —at least one fastener (14); and wherein the at least one reservoir (11) comprises a hole (113) configured to release the electrolytic paste (12) under pressure applied on the electrode (1). The present invention also relates to the use of said electrode (1) and a process for the implementation of an electrode (1).

Abstract: An electrophysiology catheter with a distal electrode assembly having covered spine carrying a plurality of microelectrodes. One or more spines have preformed configurations including at least a first portion with a first curvature and a second portion with a second curvature, and may include a linear portion. The linear portion may be between the first and second portions. The linear portion may be distal of the first and second portions. One or more spines have a narrower portion so that different portions of the spine can have different flexibility with a degree of independence in flexibility from adjacent portions.

Abstract: In some examples, a processor determines a patient state based on activity of a bioelectrical brain signal of a patient in one or more frequency sub-bands of a frequency band of interest. For example, a processor may determine a patient state based on the power level of a bioelectrical brain signal of the patient in one or more frequency sub-bands of a frequency band, or based on a spectral pattern of a bioelectrical brain signal in a frequency band, such as a shift in a power distribution between sub-bands, a change in the peak frequency within one or more sub-bands, a pattern of the power distribution over one or more frequency sub-bands, or a width or a variability of one or more sub-bands exhibiting a relatively high or low level of activity.

Abstract: An electrocardiography patch is provided. The patch includes a backing and at least two electrocardiographic electrodes each positioned on the backing, across from another of the electrocardiographic electrodes, to capture electrocardiographic signals. A flexible circuit includes a pair of circuit traces electrically coupled to the electrocardiographic electrodes. A wireless transceiver communicates at least a portion of the electrocardiographic signals.

Abstract: In some embodiments, techniques capable of obtaining high-quality fetal ECG (fECG) information using as few as two composite (maternal and fetal) maternal abdominal ECG (aECG) signals to derive the fetal ECG information are provided. In some embodiments, maternal ECG information and fetal ECG information are both obtained from the aECG signals, and are either presented or stored. The techniques may use novel proposed diffusion-based channel selection criteria. To validate the proposed techniques, analysis results of two publicly available databases are described, and compared with other available techniques in the literature.

Abstract: A method for QT correction is provided, the method comprising receiving an ECG signal; extracting a plurality of beat-to-beat (RR) intervals; extracting a plurality of QT intervals; computing a first probability distribution for a range of QT values based on the plurality of QT intervals; computing a second probability distribution for a range of QT values based on the plurality of QT intervals and the plurality of RR intervals; solving one or more points, wherein the first probability distribution and the second probability distribution intersect or wherein a difference between the first probability distribution and the second probability distribution is below a pre-defined difference threshold; designating one of one or more QT values corresponding to the one or more points as a corrected QT interval for a given QT interval of the plurality of QT intervals.

Abstract: A method comprising: at a training stage, training a machine learning algorithm on a training set comprising: (i) Heart Rate Variability (HRV) parameters extracted from temporal beat activity samples, wherein at least some of said samples include a representation of a Ventricular Fibrillation (VF) event, (ii) labels associated with one of: a first period of time immediately preceding a VF event in a temporal beat activity sample, a second period of time immediately preceding the first period of time in a temporal beat activity sample, and all other periods of time in a temporal beat activity sample; at an inference stage, receiving, as input, a target HRV parameters representing temporal beat activity in a subject; and applying said machine learning algorithm to said target HRV parameters, to predict an onset time of a VF event in said subject.

Abstract: Computer implemented methods and systems for monitoring cardiac activity (CA) signals, for a series of beats, over first and second sensing channels having different first and second detection thresholds, respectively. The methods and systems also include analyzing the CA signals over the first and second sensing channels utilizing the first and second detection thresholds, respectively, during an event prediction window to detect a presence of sensed events. The methods and systems also include determining amplitudes of the sensed events detected. The methods and systems also include calculating at least one of an amplitude distribution or amplitude trend for the sensed events detected over the first and second channels and adjusting at least one of the first or second detection thresholds based on the at least one of the amplitude distribution or amplitude trend.

Abstract: Provided is a method for mapping a neural area involved in speech processing, including applying a plurality of recording electrodes to a surface of a cortex of a human subject, presenting a plurality of auditory stimuli to the subject wherein some of the plurality of stimuli are speech sounds and others of the plurality of auditory stimuli are non-speech sounds, recording brain activity during the presenting of the plurality of auditory stimuli, and identifying one or more brain areas wherein activity changes more after presentation of speech sounds than it does after presentation of non-speech sounds, wherein the human subject does not speak during the presenting and the recording. Also provided is a method for mapping a neural area involved in speech production wherein the human subject does not speak during presenting speech stimuli and recording neural activity.

Abstract: According to an aspect, there is provided a computer-implemented method of determining an updated set of words for use in an auditory verbal learning test, AVLT, on a first subject, the method comprising receiving, by a processing unit, an initial set of words for use in an AVLT, wherein the initial set comprises a predetermined number of a plurality of words stored in a database; processing, by the processing unit, the initial set to determine feature values for the initial set; extracting, by the processing unit, one or more words from the database based on a desired level of similarity between the feature values associated with the one or more extracted words and the feature values of the initial set; and selecting, by the processing unit, one or more of the extracted words to include in an updated set of words for use in an AVLT for the first subject.

Abstract: Methods, systems, apparatus, and non-transitory computer readable media are disclosed utilizing brain-computer interfaces (BCIs). Various embodiments are disclosed to allow a user to directly select multiple-choice answers, to provide motorized wheelchair controls, and to allow a user to play a game via the BCI. When used in a cognitive assessment test, embodiments include the administration of unmodified standardized tests with results in the same or a similar format as those taken without a BCI. Various embodiments are disclosed to improve the accuracy of BCI test administration using a three-step process for each test question, which includes determining whether the user intends to select an answer, monitoring user brain activity to determine a selected answer, and verifying the selected answer. In addition, the selected answer may be verified by monitoring user brain activity in accordance with a hold-release process to determine whether a user intends to initiate a state change.

Abstract: A seizure detection system including one or more circuits, the one or more circuits configured to receive an electroencephalogram (EEG) signal generated based on electrical brain activity of a patient and determine different types of metrics based on the EEG signal, the different types of metrics indicating non-linear features of the EEG signal. The one or more circuits are configured to determine whether one or more of the different types of metrics exhibit changes over time that meet a predefined level of statistical significance, generate a user interface, the user interface including a real-time trend of the EEG signal and the one or more of the different types of metrics, and cause a user interface device to display the user interface.

Abstract: Provided herein are methods and kits for determining receptivity status of an endometrium for embryonic implantation.

Abstract: Provided herein are systems, platforms, and methods for conducting remote dermatology evaluation and sampling.

Abstract: Provided herein are methods and systems for monitoring a patient using a pressure-sensing device containing a pressure-sensitive region configured to selectively overlie a pressure ulcer-prone body part of the patient. In some embodiments, the pressure-sensing device includes a multilayered sensing unit containing a pressure-sensing layer to sense force and an adhesive layer configured to attach the pressure-sensing device to the body part. Also provided is a kit that includes the pressure-sensing device. The present methods, systems, and kits may fmd use in reducing the risk of pressure ulcer development in a patient.

Abstract: A system for monitoring medical conditions including pressure ulcers, pressure-induced ischemia and related medical conditions comprises at least one sensor adapted to detect one or more patient characteristic including at least position, orientation, temperature, acceleration, moisture, resistance, stress, heart rate, respiration rate, and blood oxygenation, a host for processing the data received from the sensors together with historical patient data to develop an assessment of patient condition and suggested course of treatment, including either suspending or adjusting turn schedule based on various types of patient movement. The sensor can include bi-axial or tri-axial accelerometers, as well as resistive, inductive, capacitive, magnetic and other sensing devices, depending on whether the sensor is located on the patient or the support surface, and for what purpose.

Abstract: Disclosed are a robot that may allow a user to monitor a state and a posture of the user in real time to perceive a state of health and the posture and receive useful contents that are helpful, and effectively help the health and correction of the posture of the user, and a real-time posture monitoring method.

Abstract: A system for assessing a status of a spinal implant includes a reader device, a wearable body sensor, and a spinal implant. The wearable body sensor includes a first short-range receiver, a first short-range transmitter, and an inertial measurement unit. The wearable body sensor is configured to be positioned over a portion of a spine of a wearer, and measure movement information corresponding to spinal motion of the wearer while the wearer performs one or more movements while wearing the wearable body sensor. The spinal implant includes one or more sensors configured to measure implant information comprising one or more characteristics of a fusion status of the spinal implant, a second short-range receiver, and a second short-range transmitter. The wearable body sensor is configured to communicate movement information to the reader device. The spinal implant is configured to communicate implant information to the reader device via the second transmitter.

Abstract: A method for spinal disorder diagnosis and treatment planning comprising the steps of: imaging a body including vertebral tissue; acquiring data points corresponding to a surface of the body adjacent to the vertebral tissue with a mixed reality holographic display; transmitting the imaging to a computer database; superimposing a first holographic image of the vertebral tissue with a body image including the surface; and displaying the first holographic image and the body image with the mixed reality holographic display. Systems, spinal constructs, implants and surgical instruments are disclosed.

Abstract: A spine and ache relation database stores the relations of aches of different portions of human body and the related vertebrae. In the test, the brainwave comparison module compares the brainwaves from the first helmet worn by the tested persons and the second helmet worn by the test apply person so as to determine whether the brainwaves from the first helmet and the second helmet are synchronous. The test applying person contacts the tested person and moreover, the test applying person thinks an aspect of one of the vertebrae continuously and repeatedly in a time period, in that the test apply person may emits voice about the aspect of the vertebrae or only think in the brain silently. The brainwave comparison module compares all the aspects of the selected vertebrae so as to determine which aspects of these vertebrae are displaced or shifted. A method using this system is provided.

Abstract: An electrocardiography and respiratory monitoring patch is provided. The monitoring patch includes a backing. Electrocardiographic electrodes are affixed to and conductively exposed on a contact surface of the backing to sense electrocardiographic data. A circuit includes circuit traces and each circuit trace is coupled to one of the electrocardiographic electrodes. At least one respiratory sensor is positioned adjacent to the backing to sense respiratory data including SpO2 or respiratory rate.

Abstract: A health care management system for geospatial biosurveillance including a bioimpedance device. The health care management system provides real time data and analysis of an individual's physiological condition using bioimpedance data. The health care management system is further operable to monitor and model disease progression and remission based on physiological conditions during a pandemic event as well as modeling the treatment and remediation of long-lasting physiological symptoms and organ damage due to post-acute sequelae of SARS-CoV2 infection (PASC).

Abstract: Systems for assessing and documenting changes in handwriting neurologic toxicity adverse events associated with a medical treatment (e.g., immune effector cell therapy) comprise a handwriting neurotoxicity grading criteria that defines the symptoms of at least one adverse event including micrographia, dysgraphia and agraphia. The handwriting neurotoxicity grading criteria may be included in a system for assessing immune effector cell associated movement and neurocognitive disorder, that comprises grading criteria for one or more of the symptom domains: handwriting impairment, gait impairment, other movement abnormalities of extremities, impairment in ability to perform ADLs, and impairment in expression or motivation.

Abstract: A Neurological Rehabilitation method utilizing oculomotor, visual and/or vestibular rehabilitation tasks on subjects with pharmacologically induced neuroplasticity comprising the steps of Inducing neuroplasticity in a subject through administering of a neuroplasticity medicament; Providing a oculomotor, visual and vestibular rehabilitation task platform configured to supply visual targets to a subject for oculomotor, visual and vestibular rehabilitation tasks and track and record eye movement of the subject during oculomotor, visual and vestibular rehabilitation tasks; Performing oculomotor, visual and/or vestibular rehabilitation tasks on the platform with subjects during periods of pharmacologically induced neuroplasticity. The neuroplasticity medicament generally is comprising at least one of an antidepressant, a Brain Derived Neuro trophic factor enhancer, a steroid, a psychedelic, valproic acid, NDRI's, lithium carbonate, Metformin, N-Acetylcystine, and Human Growth Hormone.

Abstract: A system for assessing a status of a spinal implant includes a wearable apparatus having an electronics system and one or more spinal implants in communication with the wearable apparatus. The electronics system includes a first short-range receiver, a first short-range transmitter, and an inertial measurement unit. The wearable apparatus is configured to constrain one or more movements of a wearer when worn. The one or more spinal implants include one or more sensors configured to measure one or more characteristics of a fusion status of the spinal implant, a second short-range receiver, and a second short-range transmitter. The one or more spinal implants are configured to communicate one or more of the measured characteristics to the wearable apparatus via the second transmitter.

Abstract: An individual monitoring device includes a main body provided with a display screen, a bracelet linked to the main body, a measurement instrument to be positioned opposite a radial artery of the wrist of the user, a processor and a location device. The location device includes a geolocation sensor, an avalanche victim detector and a communications device configured to communicate with a beacon. The device monitors against drowning of a child and includes a first sensor to measure a first parameter physiological parameter of the child, and a second sensor to measure a second physiological parameter of the child. The processor is configured to analyze the first physiological parameter and the second measured physiological parameter, and output information indicating the detection or the non-detection of an anomaly based on the analysis of the first and second physiological parameters.

Abstract: A mobile healthcare device and method of operating the same are provided. The method includes setting a mode of the mobile healthcare device to a measurement mode, displaying a screen for guiding a user to maintain a predetermined position during the measurement mode, and, in response to a predetermined amount of time passing from a time at which the screen begins to be displayed, obtaining state information of the user based on bio information of the user, the bio information being received from a sensor.

Abstract: The apparatus presented herein may be used for inhibiting or preventing spread of airborne pathogens while providing immediate, continuous and remote patient vital monitoring and diagnosis, without requiring medical staff supervision. In some embodiments, a mask and earpiece is provided that is configured to measure body temperature, heart rate, blood oxygen levels and respiratory rate.

Abstract: Embodiments described herein relate to apparatus and techniques for aligning and coupling a sensor device to a wearable patch. A shoe apparatus is coupled to the wearable patch. The sensor device is coupled to the shoe apparatus via one or more connectors of the shoe apparatus. As the sensor device is inserted into the shoe apparatus, features of the shoe apparatus enable alignment of the sensor device with the shoe apparatus and the one or more connectors.

Abstract: Disclosed are a sensor array and a device including the sensor. In the sensor array in which a plurality of unit element groups are arranged, each of the unit element groups includes a pressure sensor, a light emitting element, and/or a light detecting element, and the pressure sensor includes a variable resistance layer including a stretchable polymer and conductive nanostructures dispersed in the stretchable polymer.

Abstract: A bioinformatics sensor patch includes a plurality of sensing electrodes, a distance sensing element and an operation unit. The sensing electrodes senses bioinformatics of an organism. The distance sensing element senses a contact degree between the bioinformatics sensor patch and the organism and generates a corresponding contact signal. The operation unit is electrically connected to the sensing electrodes and the distance sensing element to receive the bioinformatics and the contact signal, wherein the operation unit compensates the bioinformatics or selectively outputs a control signal according to the contact signal. The above-mentioned bioinformatics sensor patch can improve a sensing accuracy of the bioinformatics.

Abstract: The invention relates to a system for detecting biosignals, comprising a sensor unit and a patch that can be attached to the body and has electrodes and conductor tracks. The sensor unit and the patch can be connected to one another via a connector arranged on the patch in such a way that an electrical connection is produced and the sensor unit is held on the body via the patch. The sensor unit has a plurality of contact elements for electrically contacting the connector and/or the patch. According to the invention, at least two contact elements of the sensor element are conductively connected to one another via a conductor track of the patch by connecting the patch to the sensor unit.

Abstract: A sensor-equipped seat detecting various parameters and determining a change in physical condition of a seated occupant includes: a surface temperature sensor detecting a seat surface temperature on a seated occupant side and acquiring surface temperature data; an outside air temperature sensor detecting the seat body outside temperature and acquiring outside air temperature data; and a controller having a calculation unit calculating the degree of change in temperature difference from the surface temperature data and the outside air temperature data and a wakefulness determination unit determining a wakefulness state of the seated occupant based on the degree of change. The calculation unit calculates the degree of change in temperature difference from the seat surface temperature in the surface temperature data and the outside air temperature in the outside air temperature data, the degree of data.

Abstract: Support device (1) for supporting at least one body part of a user at least in portions, optionally completely, comprising a support body (2), which comprises at least one support region (3) for supporting at least one body part of a user at least in portions, optionally completely, wherein at least the support region (3) has, at least in portions, optionally completely, a geometric-structural design that is individually configured on the basis of the data describing at least one body part of a user that is to be supported on the support region (3) at least in portions, optionally completely.

Abstract: An illustrative optical measurement system includes a light source configured to emit light directed at a target within a user. The system further includes a detector configured to detect photon arrival times for photons of the light after the light is scattered by the target. The system further includes a processor configured to determine, based on the photon arrival times, histogram data associated with the target, the histogram data including noise. The processor is further configured to determine, based on the photon arrival times, a random matrix corresponding to the photon arrival times. The processor is further configured to determine, based on the random matrix, a noise distribution representing a distribution of the noise within the histogram data. The processor is further configured to generate clean histogram data using the noise distribution to filter at least a portion of the noise from the histogram data.

Abstract: The present invention provides a circuitry of a biopotential acquisition system, where the circuitry includes an input node, an ETI transmitter, a capacitor and an ETI receiver. The input node is configured to receive an input signal from an electrode of the biopotential acquisition system. The ETI transmitter is configured to generate a transmitter signal. A first node of the capacitor is coupled to the ETI transmitter, and a second node of the capacitor is coupled to the input node. The ETI receiver is coupled to the input node, and is configured to receive the transmitter signal via the capacitor to generate an ETI.

Abstract: A method for calibrating measurements of human physiological state applied on an electronic device couples the device to at least one uncalibrated measurement device, worn or placed. Readings of a physiological state are collected by the uncalibrated measurement device and the readings are input into a model for calibration. A sub-module corresponding to the type of reading, for blood pressure or heart rate for example, is called up from the calibration model and a regression algorithm is applied to the calibration model to generate a calibrated reading, each sub-module in the model corresponding to one type of reading. The method also outputs calibrated physiological measurements by the called-up sub-module. A related electronic device and a non-transitory storage medium are also disclosed.

Abstract: Systems and methods for predicting risk for a medical event associated with evaluating or treating a patient for a disease are provided. Input medical imaging data and patient data of a patient are received. The input medical imaging data includes abnormality patterns associated with a disease. Imaging features are extracted from the input medical imaging data using a trained machine learning based feature extraction network. One or more of the extracted imaging features are normalized. The one or more normalized extracted imaging features and the patient data are encoded into features using a trained machine learning based encoder network. Risk for a medical event associated with evaluating or treating the patient for the disease is predicted based on the encoded features.

Abstract: This disclosure describes example alarm notification systems that can enable a clinician to respond to an alarm notification received via a computing device, which may have more advanced functionality than a pager. The clinician device may be a mobile device, such as a cellphone or smartphone, tablet, laptop, personal digital assistant (PDA), or the like. The clinician device may communicate with a remote server to obtain patient data generated by a patient device at the point-of-care (such as a bedside device or patient-worn monitor). This patient data may be continuous monitoring data for one or more patients. A mobile application (optionally a browser application) on the clinician device can enable the clinician to view continuous monitoring data for multiple patients, as well as view and respond to alarms and alerts, all from the clinician device, regardless of location.

Abstract: Provided is a medical imaging apparatus including: a display; and a controller configured to obtain a plurality of scout images corresponding to planes that are perpendicular to one another, receive an input that selects a region of interest in a first scout image corresponding to a first plane from among the plurality of scout images, and display, in a second scout image corresponding to a second plane from among the plurality of scout images, a first quadrangle indicating a third plane that is a plane corresponding to the region of interest, based on the input. The controller may display the first quadrangle so that at least a portion of the first quadrangle has a fade effect, and the fade effect may depict a level of darkness corresponding to a distance from the second plane.

Abstract: The disclosure relates to techniques for scan preparation in a medical imaging system. The technique includes triggering a 3D camera acquiring a 2D color and depth image of a patient when a patient bed is at an origin position, inputting the image into a pre-trained first body information model to obtain position information of multiple body feature site points, and calculating position information of multiple candidate scanning regions in the patient bed coordinate system. The technique further includes providing the position information of the multiple candidate scanning regions to a medical imaging application apparatus, so that the medical imaging application apparatus determines position information of a current scanning region in the patient bed coordinate system and controls the patient bed to move the current scanning region to a scanning center of a medical imaging device according to the position of the patient bed relative to the scanning center.

Abstract: A fixture for a fluoroscopic x-ray imaging system is discussed, wherein the fluoroscopic imaging system includes a C-arm, an x-ray source at a first end of the C-arm, and an x-ray detector at a second end of the C-arm. The fixture includes a processor and memory coupled with the processor. The memory includes instructions that are executable by the processor so that the processor is configured to detect an x-ray emission from the x-ray source toward the x-ray detector, determine an offset of the x-ray source relative to the x-ray detector responsive to detecting the x-ray emission, and provide an indication of the offset of the x-ray source to a medical navigation system. Related methods and robotic systems are also discussed.