Deep learning on lateral flow immunoassay for the analysis of detection data

Lateral flow immunoassay (LFIA) is an important detection method in vitro diagnosis, which has been widely used in medical industry. It is difficult to analyze all peak shapes through classical methods due to the complexity of LFIA. Classical methods are generally some peak-finding methods, which ca...

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Main Authors: Xinquan Liu, Kang Du, Si Lin, Yan Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Computational Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fncom.2023.1091180/full
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author Xinquan Liu
Kang Du
Si Lin
Si Lin
Yan Wang
author_facet Xinquan Liu
Kang Du
Si Lin
Si Lin
Yan Wang
author_sort Xinquan Liu
collection DOAJ
description Lateral flow immunoassay (LFIA) is an important detection method in vitro diagnosis, which has been widely used in medical industry. It is difficult to analyze all peak shapes through classical methods due to the complexity of LFIA. Classical methods are generally some peak-finding methods, which cannot distinguish the difference between normal peak and interference or noise peak, and it is also difficult for them to find the weak peak. Here, a novel method based on deep learning was proposed, which can effectively solve these problems. The method had two steps. The first was to classify the data by a classification model and screen out double-peaks data, and second was to realize segmentation of the integral regions through an improved U-Net segmentation model. After training, the accuracy of the classification model for validation set was 99.59%, and using combined loss function (WBCE + DSC), intersection over union (IoU) value of segmentation model for validation set was 0.9680. This method was used in a hand-held fluorescence immunochromatography analyzer designed independently by our team. A Ferritin standard curve was created, and the T/C value correlated well with standard concentrations in the range of 0–500 ng/ml (R2 = 0.9986). The coefficients of variation (CVs) were ≤ 1.37%. The recovery rate ranged from 96.37 to 105.07%. Interference or noise peaks are the biggest obstacle in the use of hand-held instruments, and often lead to peak-finding errors. Due to the changeable and flexible use environment of hand-held devices, it is not convenient to provide any technical support. This method greatly reduced the failure rate of peak finding, which can reduce the customer’s need for instrument technical support. This study provided a new direction for the data-processing of point-of-care testing (POCT) instruments based on LFIA.
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spelling doaj.art-dd35dbdf20fb45e595b839ca4d49b5d92023-01-26T08:11:04ZengFrontiers Media S.A.Frontiers in Computational Neuroscience1662-51882023-01-011710.3389/fncom.2023.10911801091180Deep learning on lateral flow immunoassay for the analysis of detection dataXinquan Liu0Kang Du1Si Lin2Si Lin3Yan Wang4School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaTianjin Boomscience Technology Co., Ltd., Tianjin, ChinaSchool of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaBeijing Savant Biotechnology Co., Ltd., Beijing, ChinaSchool of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaLateral flow immunoassay (LFIA) is an important detection method in vitro diagnosis, which has been widely used in medical industry. It is difficult to analyze all peak shapes through classical methods due to the complexity of LFIA. Classical methods are generally some peak-finding methods, which cannot distinguish the difference between normal peak and interference or noise peak, and it is also difficult for them to find the weak peak. Here, a novel method based on deep learning was proposed, which can effectively solve these problems. The method had two steps. The first was to classify the data by a classification model and screen out double-peaks data, and second was to realize segmentation of the integral regions through an improved U-Net segmentation model. After training, the accuracy of the classification model for validation set was 99.59%, and using combined loss function (WBCE + DSC), intersection over union (IoU) value of segmentation model for validation set was 0.9680. This method was used in a hand-held fluorescence immunochromatography analyzer designed independently by our team. A Ferritin standard curve was created, and the T/C value correlated well with standard concentrations in the range of 0–500 ng/ml (R2 = 0.9986). The coefficients of variation (CVs) were ≤ 1.37%. The recovery rate ranged from 96.37 to 105.07%. Interference or noise peaks are the biggest obstacle in the use of hand-held instruments, and often lead to peak-finding errors. Due to the changeable and flexible use environment of hand-held devices, it is not convenient to provide any technical support. This method greatly reduced the failure rate of peak finding, which can reduce the customer’s need for instrument technical support. This study provided a new direction for the data-processing of point-of-care testing (POCT) instruments based on LFIA.https://www.frontiersin.org/articles/10.3389/fncom.2023.1091180/fulllateral flow immunoassaydata processingpoint of care testingdeep learningconvolutional neural networkU-Net model
spellingShingle Xinquan Liu
Kang Du
Si Lin
Si Lin
Yan Wang
Deep learning on lateral flow immunoassay for the analysis of detection data
Frontiers in Computational Neuroscience
lateral flow immunoassay
data processing
point of care testing
deep learning
convolutional neural network
U-Net model
title Deep learning on lateral flow immunoassay for the analysis of detection data
title_full Deep learning on lateral flow immunoassay for the analysis of detection data
title_fullStr Deep learning on lateral flow immunoassay for the analysis of detection data
title_full_unstemmed Deep learning on lateral flow immunoassay for the analysis of detection data
title_short Deep learning on lateral flow immunoassay for the analysis of detection data
title_sort deep learning on lateral flow immunoassay for the analysis of detection data
topic lateral flow immunoassay
data processing
point of care testing
deep learning
convolutional neural network
U-Net model
url https://www.frontiersin.org/articles/10.3389/fncom.2023.1091180/full
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AT silin deeplearningonlateralflowimmunoassayfortheanalysisofdetectiondata
AT yanwang deeplearningonlateralflowimmunoassayfortheanalysisofdetectiondata