Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance

Current state-of-the-art infection and antimicrobial resistance (AMR) diagnostics are based on culture-based methods with a detection time of 48–96 h. Therefore, it is essential to develop novel methods that can do real-time diagnoses. Here, we demonstrate that the complimentary use of label-free op...

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Main Authors: Azeem Ahmad, Ramith Hettiarachchi, Abdolrahman Khezri, Balpreet Singh Ahluwalia, Dushan N. Wadduwage, Rafi Ahmad
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-04-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2023.1154620/full
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author Azeem Ahmad
Ramith Hettiarachchi
Ramith Hettiarachchi
Abdolrahman Khezri
Balpreet Singh Ahluwalia
Balpreet Singh Ahluwalia
Dushan N. Wadduwage
Rafi Ahmad
Rafi Ahmad
author_facet Azeem Ahmad
Ramith Hettiarachchi
Ramith Hettiarachchi
Abdolrahman Khezri
Balpreet Singh Ahluwalia
Balpreet Singh Ahluwalia
Dushan N. Wadduwage
Rafi Ahmad
Rafi Ahmad
author_sort Azeem Ahmad
collection DOAJ
description Current state-of-the-art infection and antimicrobial resistance (AMR) diagnostics are based on culture-based methods with a detection time of 48–96 h. Therefore, it is essential to develop novel methods that can do real-time diagnoses. Here, we demonstrate that the complimentary use of label-free optical assay with whole-genome sequencing (WGS) can enable rapid diagnosis of infection and AMR. Our assay is based on microscopy methods exploiting label-free, highly sensitive quantitative phase microscopy (QPM) followed by deep convolutional neural networks-based classification. The workflow was benchmarked on 21 clinical isolates from four WHO priority pathogens that were antibiotic susceptibility tested, and their AMR profile was determined by WGS. The proposed optical assay was in good agreement with the WGS characterization. Accurate classification based on the gram staining (100% recall for gram-negative and 83.4% for gram-positive), species (98.6%), and resistant/susceptible type (96.4%), as well as at the individual strain level (100% sensitivity in predicting 19 out of the 21 strains, with an overall accuracy of 95.45%). The results from this initial proof-of-concept study demonstrate the potential of the QPM assay as a rapid and first-stage tool for species, strain-level classification, and the presence or absence of AMR, which WGS can follow up for confirmation. Overall, a combined workflow with QPM and WGS complemented with deep learning data analyses could, in the future, be transformative for detecting and identifying pathogens and characterization of the AMR profile and antibiotic susceptibility.
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spelling doaj.art-ce5d7172f1a94e5b8a5dfb1680f006b22023-04-12T05:31:05ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-04-011410.3389/fmicb.2023.11546201154620Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistanceAzeem Ahmad0Ramith Hettiarachchi1Ramith Hettiarachchi2Abdolrahman Khezri3Balpreet Singh Ahluwalia4Balpreet Singh Ahluwalia5Dushan N. Wadduwage6Rafi Ahmad7Rafi Ahmad8Department of Physics and Technology, UiT The Arctic University of Norway, Tromsø, NorwayDepartment of Electronic and Telecommunication Engineering, University of Moratuwa, Moratuwa, Sri LankaCenter for Advanced Imaging, Faculty of Arts and Sciences, Harvard University, Cambridge, MA, United StatesDepartment of Biotechnology, Inland Norway University of Applied Sciences, Hamar, NorwayDepartment of Physics and Technology, UiT The Arctic University of Norway, Tromsø, NorwayDepartment of Clinical Science, Intervention and Technology, Karolinska Insitute, Stockholm, SwedenCenter for Advanced Imaging, Faculty of Arts and Sciences, Harvard University, Cambridge, MA, United StatesDepartment of Biotechnology, Inland Norway University of Applied Sciences, Hamar, NorwayInstitute of Clinical Medicine, Faculty of Health Sciences, UiT—The Arctic University of Norway, Tromsø, NorwayCurrent state-of-the-art infection and antimicrobial resistance (AMR) diagnostics are based on culture-based methods with a detection time of 48–96 h. Therefore, it is essential to develop novel methods that can do real-time diagnoses. Here, we demonstrate that the complimentary use of label-free optical assay with whole-genome sequencing (WGS) can enable rapid diagnosis of infection and AMR. Our assay is based on microscopy methods exploiting label-free, highly sensitive quantitative phase microscopy (QPM) followed by deep convolutional neural networks-based classification. The workflow was benchmarked on 21 clinical isolates from four WHO priority pathogens that were antibiotic susceptibility tested, and their AMR profile was determined by WGS. The proposed optical assay was in good agreement with the WGS characterization. Accurate classification based on the gram staining (100% recall for gram-negative and 83.4% for gram-positive), species (98.6%), and resistant/susceptible type (96.4%), as well as at the individual strain level (100% sensitivity in predicting 19 out of the 21 strains, with an overall accuracy of 95.45%). The results from this initial proof-of-concept study demonstrate the potential of the QPM assay as a rapid and first-stage tool for species, strain-level classification, and the presence or absence of AMR, which WGS can follow up for confirmation. Overall, a combined workflow with QPM and WGS complemented with deep learning data analyses could, in the future, be transformative for detecting and identifying pathogens and characterization of the AMR profile and antibiotic susceptibility.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1154620/fullquantitative phase microscopywhole genome sequencingmachine learningantibiotic resistancedeep learningrapid diagnosis
spellingShingle Azeem Ahmad
Ramith Hettiarachchi
Ramith Hettiarachchi
Abdolrahman Khezri
Balpreet Singh Ahluwalia
Balpreet Singh Ahluwalia
Dushan N. Wadduwage
Rafi Ahmad
Rafi Ahmad
Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance
Frontiers in Microbiology
quantitative phase microscopy
whole genome sequencing
machine learning
antibiotic resistance
deep learning
rapid diagnosis
title Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance
title_full Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance
title_fullStr Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance
title_full_unstemmed Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance
title_short Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance
title_sort highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance
topic quantitative phase microscopy
whole genome sequencing
machine learning
antibiotic resistance
deep learning
rapid diagnosis
url https://www.frontiersin.org/articles/10.3389/fmicb.2023.1154620/full
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