Use of machine learning to predict early biochemical recurrence after robot-assisted prostatectomy.

Autor: Wong NC; Division of Urology, Department of Surgery, McMaster University, Hamilton, ON, Canada., Lam C; Division of Urology, Department of Surgery, McMaster University, Hamilton, ON, Canada., Patterson L; Division of Urology, Department of Surgery, McMaster University, Hamilton, ON, Canada., Shayegan B; Division of Urology, Department of Surgery, McMaster University, Hamilton, ON, Canada.
Jazyk: angličtina
Zdroj: BJU international [BJU Int] 2019 Jan; Vol. 123 (1), pp. 51-57. Date of Electronic Publication: 2018 Aug 05.
DOI: 10.1111/bju.14477
Abstrakt: Objectives: To train and compare machine-learning algorithms with traditional regression analysis for the prediction of early biochemical recurrence after robot-assisted prostatectomy.
Patients and Methods: A prospectively collected dataset of 338 patients who underwent robot-assisted prostatectomy for localized prostate cancer was examined. We used three supervised machine-learning algorithms and 19 different training variables (demographic, clinical, imaging and operative data) in a hypothesis-free manner to build models that could predict patients with biochemical recurrence at 1 year. We also performed traditional Cox regression analysis for comparison.
Results: K-nearest neighbour, logistic regression and random forest classifier were used as machine-learning models. Classic Cox regression analysis had an area under the curve (AUC) of 0.865 for the prediction of biochemical recurrence. All three of our machine-learning models (K-nearest neighbour (AUC 0.903), random forest tree (AUC 0.924) and logistic regression (AUC 0.940) outperformed the conventional statistical regression model. Accuracy prediction scores for K-nearest neighbour, random forest tree and logistic regression were 0.976, 0.953 and 0.976, respectively.
Conclusions: Machine-learning techniques can produce accurate disease predictability better that traditional statistical regression. These tools may prove clinically useful for the automated prediction of patients who develop early biochemical recurrence after robot-assisted prostatectomy. For these patients, appropriate individualized treatment options can improve outcomes and quality of life.
(© 2018 The Authors BJU International © 2018 BJU International Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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