Visualizing physiologic data obtained from subjects
Inventors
Toth, Landy • Hariharan, Dhananjai • Schwartz, Robert S.
Assignees
Publication Number
US-12131413-B2
Publication Date
2024-10-29
Expiration Date
2041-04-22
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Abstract
An apparatus comprises at least one processing device comprising a processor coupled to a memory. The at least one processing device is configured to select physiologic data to be visualized, the selected physiologic data comprising a given set of one or more physiologic parameters collected from a given set of one or more subjects over a given period of time. The at least one processing device is also configured to determine a plot type for visualization of the selected physiologic data, the plot type being determined based at least in part on a repetitiveness of the selected physiologic data over a plurality of time segments in the given period of time. The at least one processing device is further configured to generate a visualization of the selected physiologic data utilizing the determined plot type, and to output the generated visualization of the selected physiologic data via an interactive graphical user interface.
Core Innovation
The invention provides an apparatus comprising at least one processing device that is configured to select physiologic data for visualization. The selected data includes one or more physiologic parameters collected from one or more subjects during a designated period of time. The apparatus is further configured to determine a plot type for visualizing this data, with the selection based on the repetitiveness of the selected data across multiple time segments within the defined period.
A core part of the invention addresses the problem of quickly and intuitively conveying physiologic data to a user, such as a clinician or caregiver, allowing for rapid interpretation and assessment. Traditional visualizations often fail to reflect the cyclical or repetitive nature of certain physiologic events or behaviors, making it harder to interpret relationships with time-based cycles like daily activity or sleep patterns.
To solve this, the processing device analyzes the data for repetitiveness by segmenting time and comparing pairs of segments. If enough repetition is detected according to a set threshold, a polar coordinate plot is chosen for visualization, aligning cyclical patterns with the geometry of the plot. If data does not meet the required repetitiveness, a Cartesian coordinate plot is used. The final visualization is then generated with the selected plot type and output via an interactive graphical user interface, which may also provide features such as annotations, contextual overlays, and user-driven exploration of displayed data.
Claims Coverage
The patent claims cover three main inventive features related to physiologic data visualization and interaction.
Dynamic selection of physiologic data and plot type based on data repetitiveness
The apparatus is configured to select physiologic data to be visualized—comprising one or more physiologic parameters gathered from one or more subjects over a defined period—and determine a plot type for visualization based at least in part on repetitiveness of the data over multiple time segments. The system selects a polar coordinate plot if the data exhibits at least a threshold level of repetitiveness, and selects a Cartesian coordinate plot if it does not. This selection process is performed by at least one processing device comprising a processor coupled to memory.
Iterative analysis of time segment sizes for detecting data repetition
The processing device is further configured to identify a set of supported time segment sizes and iteratively segment the period of interest at various sizes. At each iteration, the device divides the data into time segments, compares pairs of segments for repetitiveness, and checks if a threshold for repetitiveness is met. The process may begin with the smallest segment size and proceed to larger ones. If none of the tested segment sizes meets the threshold repetitiveness after specific iterations, a Cartesian coordinate plot type is selected.
Interactive graphical user interface with annotation and filtering capabilities
The generated visualization is output via an interactive graphical user interface, which provides user-activatable features including: - Displaying annotations (such as contextual events, voice recordings, or other markers) at designated points on the plot. - Overlaying filters (e.g., for indicating daytime/nighttime, sleep states, or parameter thresholds). - Toggling the display of individual physiologic parameters. - Selecting regions of the plot to zoom in or update the display. - Presenting additional plots or linear traces as needed for further data exploration.
The claims collectively cover a system that programmatically selects physiologic data, determines the optimal visual representation based on the nature of the data, and delivers highly interactive, annotated visualizations to the user.
Stated Advantages
Facilitates rapid and intuitive visualization of physiologic data, enabling quick interpretation by clinicians, caregivers, or users.
Automatically selects the optimal type of plot (polar or Cartesian) based on the nature of underlying data cycles, improving the accuracy and relevance of data presentation.
Provides interactive graphical user interface features including contextual annotations, overlays, and flexible data exploration tools, supporting more effective data analysis and navigation.
Documented Applications
Visualizing physiological parameters such as heart rate, EKG metrics, physical activity, respiration, sleep states, and similar monitored data from one or more subjects over time.
Facilitating rapid assessment and interpretation of large or complex datasets in healthcare settings by clinicians, caregivers, or study administrators.
Enabling patient monitoring in contexts such as sleep analysis, cardiac condition tracking, medication timing, assessment of disease states, and identification of cyclical behavior impacts on physiology.
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