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Application of artificial neural network model combined with four biomarkers in auxiliary diagnosis of lung cancer.

Abstract：

:The purpose of the study was to explore the application of artificial neural network model in the auxiliary diagnosis of lung cancer and compare the effects of back-propagation (BP) neural network with Fisher discrimination model for lung cancer screening by the combined detections of four biomarkers of p16, RASSF1A and FHIT gene promoter methylation levels and the relative telomere length. Real-time quantitative methylation-specific PCR was used to detect the levels of three-gene promoter methylation, and real-time PCR method was applied to determine the relative telomere length. BP neural network and Fisher discrimination analysis were used to establish the discrimination diagnosis model. The levels of three-gene promoter methylation in patients with lung cancer were significantly higher than those of the normal controls. The values of Z(P) in two groups were 2.641 (0.008), 2.075 (0.038) and 3.044 (0.002), respectively. The relative telomere lengths of patients with lung cancer (0.93 ± 0.32) were significantly lower than those of the normal controls (1.16 ± 0.57), t = 4.072, P < 0.001. The areas under the ROC curve (AUC) and 95 % CI of prediction set from Fisher discrimination analysis and BP neural network were 0.670 (0.569-0.761) and 0.760 (0.664-0.840). The AUC of BP neural network was higher than that of Fisher discrimination analysis, and Z(P) was 0.76. Four biomarkers are associated with lung cancer. BP neural network model for the prediction of lung cancer is better than Fisher discrimination analysis, and it can provide an excellent and intelligent diagnosis tool for lung cancer.

journal_name

Med Biol Eng Comput

journal_title

Medical & biological engineering & computing

authors

Duan X,Yang Y,Tan S,Wang S,Feng X,Cui L,Feng F,Yu S,Wang W,Wu Y

doi

10.1007/s11517-016-1585-7

subject

Has Abstract

pub_date

2017-08-01 00:00:00

pages

1239-1248

issue

8

eissn

0140-0118

issn

1741-0444

pii

10.1007/s11517-016-1585-7

journal_volume

55

pub_type

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