3D Patient Motion Detection for Stable Diagnostic Imaging
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Solution Overview
Problem
Existing patient positioning methods for diagnostic imaging rely on complex image recognition and processing techniques, limiting flexibility and increasing costs, and fail to ensure patient stability during image acquisition, leading to suboptimal images and unnecessary radiation exposure.
Innovation Solution
A simple and robust approach using depth and/or 3D camera imaging to monitor patient positioning without requiring precise alignment with the diagnostic imaging system, detecting movements through landmark features and providing real-time feedback to maintain the desired spatial configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex image recognition and processing techniques are used to monitor patient positioning, then measurement precision of patient position is improved, but device complexity increases
Solution Approach 1:
The patent uses optical camera imaging to create a visual copy of the patient's spatial configuration, which is then displayed in real-time. This optical copy allows monitoring of patient position without requiring complex image recognition algorithms, thereby maintaining measurement precision while reducing device complexity
Solution Approach 2:
The patent replaces complex mechanical/image processing systems with a simpler optical feedback system. By using cameras to capture and display visual information directly to the patient and operator, the system achieves accurate position monitoring without intricate processing techniques
2Reliability
If patient positioning is monitored continuously before image acquisition, then reliability of image quality is improved, but loss of time increases
Solution Approach 1:
The patent implements continuous real-time visual feedback during the entire positioning period. The camera system continuously monitors patient position and displays the feedback without interruption, allowing both patient and operator to maintain awareness of positioning status throughout the preparation phase, ensuring image quality reliability without excessive time loss
Solution Approach 2:
The system provides immediate visual feedback to both the patient and operator about the patient's spatial configuration. This real-time feedback loop allows for quick adjustments and confirms when the correct position is achieved, improving image quality reliability while minimizing the time required for positioning verification
Data Source
AI summary
A device (10), system, method and computer-program product are disclosed for detecting movement of a subject in a diagnostic imaging examination. The device comprises a camera/3D surface scanning system (11) and an input (14) for receiving a trigger to indicate that a current spatial configuration of the subject is to be maintained for the examination. The device comprises a processor (12) and an output (13), in which the processor (12) is adapted for acquiring reference data of the subject using the camera/3D system when said trigger is received, and for acquiring further data of the subject using the camera/3D system after acquiring said reference data. The processor is adapted to compare the reference data, which represents a reference state of the subject at substantially the time that the trigger was received, to the further data, which represents a more recent state of the subject. The processor is adapted to provide output data via said output (13), in which this output data is representative of the comparison of the further data to the reference data so as to indicate movement of the subject with respect to the reference state of the subject.