NMR Spectroscopy for Non-Invasive Disc Degeneration Mapping
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Solution Overview
Problem
Current medical technologies lack effective, non-invasive methods for identifying and characterizing tissue degradation and pain associated with skeletal joints, particularly intervertebral discs, which are challenging to diagnose and localize.
Innovation Solution
A non-invasive NMR spectroscopy system that analyzes tissue properties based on chemical signatures, using NMR spectra to distinguish between different stages of disc degeneration and localize pain by measuring ratios of specific resonances such as N-Acetyl to choline and choline to carbohydrate regions, and employing proton high-resolution magic angle spinning spectroscopy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional imaging methods are used to assess skeletal joint conditions, then the imaging can be performed, but the ability to accurately identify and characterize tissue degradation and pain is insufficient
Solution Approach 1:
The patent applies NMR spectroscopy to detect chemical composition changes in tissue, analogous to color changes, by measuring resonance signals from specific molecules (proteoglycans, collagen, lipids) that indicate degradation stages and pain conditions without requiring complex invasive procedures
Solution Approach 2:
The patent replaces conventional mechanical imaging methods with NMR spectroscopy, substituting a chemical detection approach that measures molecular resonance signals to characterize tissue composition and degradation, providing more precise biochemical information than structural imaging alone
2Measurement precision
If invasive methods are used to obtain tissue samples for analysis, then accurate biochemical characterization can be achieved, but patient discomfort and procedural complexity increase
Solution Approach 1:
The patent uses NMR spectroscopy as an intermediary non-invasive technique that obtains biochemical information about tissue composition without requiring direct tissue extraction, acting as a mediator between the need for accurate biochemical data and the requirement for patient comfort
Solution Approach 2:
The patent substitutes invasive mechanical tissue sampling with non-invasive NMR spectroscopic detection, replacing physical tissue extraction with electromagnetic resonance measurement to achieve the same diagnostic goal without patient discomfort
3Measurement precision
If conventional imaging is used to localize pain, then imaging can be performed, but precise localization of pain-generating tissue is difficult
Solution Approach 1:
The patent detects localized chemical composition changes in tissue through NMR spectroscopy, using resonance signal variations from specific molecules (proteoglycans, collagen, lipids) to identify and localize pain-generating regions with precise spatial and biochemical specificity
Solution Approach 2:
The patent measures changes in NMR resonance parameters (chemical shifts, peak ratios, relaxation times) to detect and localize tissue degradation and pain conditions, using parameter variations to precisely identify the spatial distribution of pathological changes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides accurate, non-invasive characterization of tissue degeneration and pain localization by analyzing NMR spectra, enabling precise diagnosis and treatment targeting.
Implementation Method 1
nuclear magnetic resonance (NMR) spectroscopy to identify, localize, and/or characterize chemical, molecular, structural, or other signatures related to medical conditions in tissues
Implementation Method 2
proton high-resolution magic angle spinning spectroscopy
Data Source
AI summary
A completely non-invasive diagnostic toolset and method to image and localize degeneration and/or pain. Extent of degeneration is determined based on NMR spectroscopy of intervertebral disc tissue. Correlation between NMR spectral regions and at least one of tissue degeneration and pain are made. Accordingly, NMR spectroscopy is used to determine location and/or extent of at least one of degeneration or pain associated with a region of tissue, such as for example in particular disc degeneration, or discogenic pain. NMR spectral peak ratios, such as between N-Acetyl/cho and cho/carb, are acquired and analyzed to predict degree of tissue degeneration and/or pain for: tissue samples using HR-MAS spectroscopy; and larger portions of anatomy such as joint segments such as a spine, using clinical 3T MRI systems with surface head or knee coils; and tissue regions such as discs within spines of living patients using 3T MRI systems with a surface spine coil.