Volume 13, Issue 9 e202000036
FULL ARTICLE

Machine learning of diffraction image patterns for accurate classification of cells modeled with different nuclear sizes

Jing Liu

Jing Liu

Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan, China

School of Information Science and Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan, China

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Yaohui Xu

Yaohui Xu

Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan, China

School of Information Science and Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan, China

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Wenjin Wang

Wenjin Wang

Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan, China

School of Physics & Electronic Science, Hunan Institute of Science and Technology, Yueyang, Hunan, China

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Yuhua Wen

Yuhua Wen

Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan, China

School of Physics & Electronic Science, Hunan Institute of Science and Technology, Yueyang, Hunan, China

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Heng Hong

Heng Hong

Department of Pathology and Comparative Medicine, Wake Forest School of Medicine, Wake Forest University, Winston-Salem, North Carolina, USA

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Jun Q. Lu

Jun Q. Lu

Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan, China

Department of Physics, East Carolina University, Greenville, North Carolina, USA

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Peng Tian

Corresponding Author

Peng Tian

Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan, China

School of Physics & Electronic Science, Hunan Institute of Science and Technology, Yueyang, Hunan, China

Correspondence

Xin-Hua Hu, Department of Physics, East Carolina University, Greenville, NC 27858.

Email: [email protected]

Peng Tian, Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China.

Email: [email protected]

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Xin-Hua Hu

Corresponding Author

Xin-Hua Hu

Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan, China

Department of Physics, East Carolina University, Greenville, North Carolina, USA

Correspondence

Xin-Hua Hu, Department of Physics, East Carolina University, Greenville, NC 27858.

Email: [email protected]

Peng Tian, Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China.

Email: [email protected]

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First published: 07 June 2020
Citations: 8

Jing Liu and Yaohui Xu contributed equally to this study.

Funding information: Education Department of Hunan Province, Grant/Award Number: 18B348; Hunan Provincial Science and Technology Department, Grant/Award Number: 19A198

Abstract

Measurement of nuclear-to-cytoplasm (N:C) ratios plays an important role in detection of atypical and tumor cells. Yet, current clinical methods rely heavily on immunofluroescent staining and manual reading. To achieve the goal of rapid and label-free cell classification, realistic optical cell models (OCMs) have been developed for simulation of diffraction imaging by single cells. A total of 1892 OCMs were obtained with varied nuclear volumes and orientations to calculate cross-polarized diffraction image (p-DI) pairs divided into three nuclear size groups of OCMS, OCMO and OCML based on three prostate cell structures. Binary classifications were conducted among the three groups with image parameters extracted by the algorithm of gray-level co-occurrence matrix. The averaged accuracy of support vector machine (SVM) classifier on test dataset of p-DI was found to be 98.8% and 97.5% respectively for binary classifications of OCMS vs OCMO and OCMO vs OCML for the prostate cancer cell structure. The values remain about the same at 98.9% and 97.8% for the smaller prostate normal cell structures. The robust performance of SVM over clustering classifiers suggests that the high-order correlations of diffraction patterns are potentially useful for label-free detection of single cells with large N:C ratios.image

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