Vector-Cardio-Graphic Signal Analyzer for Ischemia Detection
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Solution Overview
Problem
Conventional myocardial perfusion scans for detecting myocardial ischemia are expensive, immobile, and dependent on technical expertise, with radiation exposure concerns, and may lead to misinterpretation of images.
Innovation Solution
A vector-cardio-graphic signal analyzer system using electrodes to record electrical signals from the body, amplifying and converting them into digital signals for analysis by a computing device to determine the extent and location of myocardial ischemia without the need for radioactive tracers, relying on orthogonal lead signals and depolarization vectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If myocardial perfusion scan imaging devices are used to identify myocardial ischemia, then the location and extent of ischemia can be determined, but the devices are expensive and immobile
Solution Approach 1:
The patent replaces complex mechanical imaging devices with a computational system that processes electrical signals. Instead of using expensive camera-based imaging equipment, the invention uses electrodes to capture cardiac electrical signals, which are then processed by a computing device to generate pseudoprojection views indicating ischemia location and extent.
Solution Approach 2:
The patent creates a simplified computational model that replicates the diagnostic functionality of complex imaging devices. By processing electrical signals through specific algorithms, the system generates visual representations (pseudoprojection views) that copy the essential diagnostic information of myocardial perfusion scans without requiring the original imaging hardware.
2Measurement precision
If myocardial perfusion scans are performed with radioactive tracers, then blood flow areas can be visualized, but radiation exposure risks to patients and environment occur
Solution Approach 1:
The patent converts the potentially harmful radioactive tracer method into a safe electrical signal-based method. Instead of using ionizing radiation to visualize blood flow, the invention uses electrodes to capture electrical signals that naturally occur during cardiac activity, eliminating radiation exposure while maintaining the ability to visualize and analyze blood flow patterns.
Solution Approach 2:
The patent introduces electrical signals as an intermediary between the heart's pumping action and the diagnostic visualization. Rather than directly tracking radioactive tracers, the system uses electrical signals generated by the heart as a mediator to infer blood flow patterns and identify ischemic areas through computational analysis.
3Measurement precision
If myocardial perfusion imaging is used, then ischemia can be detected, but the results depend on operator skills and may lead to misinterpretation
Solution Approach 1:
The patent applies automated computational processing that accelerates and standardizes the analysis of cardiac signals. The computing device automatically processes electrical signals, generates pseudoprojection views, and identifies ischemia patterns without requiring manual interpretation, thereby eliminating variability introduced by operator skill levels.
Solution Approach 2:
The system performs self-analysis by automatically processing electrical signals and generating diagnostic visualizations without requiring expert operators. The computing device independently executes algorithms to interpret cardiac electrical activity and produce standardized pseudoprojection views that consistently indicate ischemia location and extent regardless of operator expertise.
4Measurement precision
If conventional imaging methods are used, then myocardial ischemia can be identified, but the process is expensive and requires specialized facilities
Solution Approach 1:
The patent replaces expensive, specialized imaging equipment with inexpensive, portable components. Instead of requiring costly myocardial perfusion scan devices, the invention uses simple electrodes and a standard computing device that can be deployed in any setting without specialized facilities, dramatically reducing both equipment and operational costs.
Data Source
AI summary
The current subject matter relates to indicating extent and location of myocardial ischemia in a patient. Electrodes can be placed on a body of the patient. Signal amplifiers can receive orthogonal electrical signals from the electrodes via three bipolar leads. The signal amplifiers can amplify the signals and send the amplified signals to analog to digital converters. The analog to digital converters can convert the amplified signals to digital signals. A computing device can execute a data analysis application that can receive these digital signals, generate QRS complexes associated with these signals, generate depolarization vectors associated with these QRS complexes, and then determine changes in magnitudes and directions of these vectors. Based on the changes in magnitudes and directions, the data analysis application can determine and display extent and location of myocardial ischemia in the patient. Related apparatus, systems, methods, techniques and articles are also described.