Multimodal Spectroscopy for Pancreatic Tissue Classification
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Solution Overview
Problem
Current diagnostic procedures for pancreatic adenocarcinoma are inadequate for early detection and often fail to distinguish the disease from pancreatitis, leading to unnecessary surgeries and poor patient outcomes due to the inaccessibility of the pancreas and limitations of existing optical methods.
Innovation Solution
The use of multimodal spectroscopy systems and methods that direct electromagnetic radiation onto biological tissue to produce measurable spectroscopic events, collecting and analyzing fluorescence and reflectance spectra to classify tissue as normal or abnormal, and differentiate between pancreatic adenocarcinoma, pancreatitis, and normal tissue based on preset criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If endoscopic ultrasound-guided fine needle aspiration is used for pancreatic cancer diagnosis, then the disease can be detected, but the sensitivity is only 54% and it cannot reliably distinguish cancer from pancreatitis
Solution Approach 1:
The patent combines multiple optical spectroscopy techniques (fluorescence spectroscopy, reflectance spectroscopy, and light scattering spectroscopy) into a unified diagnostic system. This merging of multiple measurement modalities enables the system to simultaneously capture different tissue properties, achieving both high diagnostic accuracy and reliable distinction between pancreatic cancer and pancreatitis through multivariate analysis of the combined spectral data.
2Ease of operation
If optical methods are applied for pancreatic cancer detection, then minimally invasive detection is achieved, but the pancreas remains relatively inaccessible and detection capability is limited
Solution Approach 1:
The patent employs an endoscope as an intermediary device to deliver the optical spectroscopy probe to the pancreas through the gastrointestinal tract. This intermediary approach enables minimally invasive access to the pancreas without requiring direct surgical exposure, allowing the optical measurements to be performed in vivo through the natural body lumens while overcoming the pancreas's deep anatomical location.
3Quantity of substance
If random biopsies are performed for tissue diagnosis, then tissue samples can be obtained, but small tissue sites may be missed and unnecessary surgeries may occur
Solution Approach 1:
The patent performs optical spectroscopy measurements on the tissue surface before biopsy to identify and map suspicious areas. This preliminary optical screening allows the system to precisely locate abnormal tissue regions, guiding subsequent biopsy procedures to target only the most suspicious areas. This approach ensures complete lesion detection while minimizing unnecessary biopsies of normal tissue and reducing the risk of missing small lesions.
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
This approach allows for non-invasive, real-time, and cost-effective tissue classification, capable of identifying small tissue sites missed by random biopsies, and can be used in conjunction with endoscopic ultrasound-guided procedures, improving the detection of pancreatic adenocarcinoma and reducing unnecessary surgeries.
Implementation Method 1
employing fluorescence, reflectance, and light-scattering spectroscopy
Implementation Method 2
employing fluorescence, reflectance, and light-scattering spectroscopy
Implementation Method 3
employing fluorescence, reflectance, and light-scattering spectroscopy
Data Source
AI summary
Multimodal optical spectroscopy systems and methods produce a spectroscopic event to obtain spectroscopic response data from biological tissue and compare the response data with preset criteria configured to correlate the measured response data and the most probable attributes of the tissue, thus facilitating classification of the tissue based on those attributes for subsequent biopsy or remedial measures as necessary.