Blood Flow Velocity Correction Using ECG Data
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Solution Overview
Problem
Current methods for measuring blood flow velocity in medical imaging technologies, such as ultrasound Doppler, MRI, and CT, face challenges in accurately measuring blood flow velocity independently of the heart rate cycle, leading to variations in measurements over different phases of the heart rate cycle.
Innovation Solution
A method and apparatus that correct blood flow velocity measurements by using electrocardiogram data and standard blood flow velocity data to determine a correction factor, which is applied to the calculated blood flow velocity, ensuring consistency and accuracy by mapping the standard blood flow velocity data to match the heart rate cycle of the electrocardiogram data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If blood flow velocity is measured using medical imaging technologies (ultrasound Doppler, MRI, CT), then blood flow velocity can be directly measured, but the measurement is influenced by the heart rate cycle phase and cannot be measured independently from heart rate cycle
Solution Approach 1:
The patent introduces electrocardiogram data and standard blood flow velocity data as intermediary elements to mediate between the raw blood flow velocity measurements and the final corrected values. The electrocardiogram data serves as a temporal reference framework, and the standard blood flow velocity data provides the correction values, allowing the system to eliminate heart rate cycle influence without directly manipulating the blood flow measurement process itself.
Solution Approach 2:
The patent implements a feedback mechanism where the measured blood flow velocity is compared against standard blood flow velocity data, and correction values are applied based on this comparison. The correction process uses feedback from the electrocardiogram data to adjust the blood flow velocity measurements, ensuring that the final values are independent of heart rate cycle phase.
2Productivity
If blood flow velocity is measured at different phases of the heart rate cycle, then measurements can be obtained, but the measurements vary depending on the specific phase and cannot be standardized
Solution Approach 1:
The patent changes the parameter of blood flow velocity by applying correction values derived from standard blood flow velocity data. This parameter transformation converts the phase-dependent raw measurements into phase-independent corrected values, maintaining measurement consistency across different heart rate cycle phases while preserving the ability to acquire measurements at any phase.
Solution Approach 2:
The patent creates equipotentiality in measurement consistency by ensuring that blood flow velocity measurements yield the same corrected values regardless of the heart rate cycle phase at which they were taken. The correction process equalizes the measurement outcomes across different temporal conditions, making the measurements comparable and consistent.
3Measurement precision
If correction factors are applied to blood flow velocity data, then measurement accuracy is improved, but the complexity of data processing increases
Solution Approach 1:
The patent performs preliminary action by pre-calculating and storing correction values based on standard blood flow velocity data before the actual measurement process. This allows the correction to be applied during measurement without requiring complex real-time processing, as the correction factors are prepared in advance and can be directly applied to the raw measurements.
Data Source
AI summary
A method for correcting blood flow velocity is provided, including receiving a plurality of medical images depicting a target blood vessel, receiving electrocardiogram data of an object of measurement, calculating blood flow velocity of the target blood vessel using the plurality of medical images, and correcting the calculated blood flow velocity based on the electrocardiogram data and standard blood flow velocity data of the target blood vessel.