Abstract
Purpose
Artificial intelligence is part of our daily life and machine learning techniques offer possibilities unknown until now in medicine. This study aims to offer an evaluation of the performance of machine learning (ML) techniques, for predicting bacterial resistance in a urology department.
Methods
Data were retrieved from laboratory information system (LIS) concerning 239 patients with urolithiasis hospitalized in the urology department of a tertiary hospital over a 1-year period (2019): age, gender, Gram stain (positive, negative), bacterial species, sample type, antibiotics and antimicrobial susceptibility. In our experiments, we compared several classifiers following a tenfold cross-validation approach on 2 different versions of our dataset; the first contained only information of Gram stain, while the second had knowledge of bacterial species.
Results
The best results in the balanced dataset containing Gram stain, achieve a weighted average receiver operator curve (ROC) area of 0.768 and F-measure of 0.708, using a multinomial logistic regression model with a ridge estimator. The corresponding results of the balanced dataset, that contained bacterial species, achieve a weighted average ROC area of 0.874 and F-measure of 0.783, with a bagging classifier.
Conclusions
Artificial intelligence technology can be used for making predictions on antibiotic resistance patterns when knowing Gram staining with an accuracy of 77% and nearly 87% when identifying specific microorganisms. This knowledge can aid urologists prescribing the appropriate antibiotic 24–48 h before test results are known.
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Abbreviations
- ML:
-
Machine learning
- LIS:
-
Laboratory information system
- ROC:
-
Receiver operator curve
- UTI:
-
Urinary tract infections
- UCA-UTI:
-
Urinary calculi associated urinary tract infections
- AMR:
-
Multidrug antimicrobial resistance
- AI:
-
Artificial intelligence
- HIS:
-
Hospital information system
- CLSI:
-
Guidelines of laboratory standards institute
- MIC:
-
Minimum inhibitory concentration
- MMC:
-
Matthews correlation coefficient
- PRC:
-
Precision–recall plot
- AUC-PR:
-
Precision–recall curve
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Conceptualization: LT, GF and IV, Methodology: GF, LL, Software EL, SB, Validation: DK, PM, Formal analysis: LL, LT, Investigation: MB, IM, IM, Resources: GF, Data curation: LL, MB, LT, Writing original draft preparation: GF, LT, LL, Writing-review and editing: IV, Visualization: DK, Supervision: AS, IV, Project administration: GF. All authors have read and agreed to the published version of the manuscript.
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The study was conducted according to the guidelines of the Declaration of Helsinki and approved by the institutional review board of Sismanogleio general hospital (Ref. No. 15178/2020).
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Tzelves, L., Lazarou, L., Feretzakis, G. et al. Using machine learning techniques to predict antimicrobial resistance in stone disease patients. World J Urol 40, 1731–1736 (2022). https://doi.org/10.1007/s00345-022-04043-x
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DOI: https://doi.org/10.1007/s00345-022-04043-x