Fully Automatic Karyotyping via Deep Convolutional Neural Networks



Wang, Chengyu, Yu, Limin ORCID: 0000-0002-6891-0604, Su, Jionglong ORCID: 0000-0001-5360-6493, Shen, Juming ORCID: 0000-0001-6311-6471, Selis, Valerio ORCID: 0000-0002-1856-4707, Yang, Chunxiao and Ma, Fei ORCID: 0000-0001-6099-480X
(2024) Fully Automatic Karyotyping via Deep Convolutional Neural Networks. IEEE Access, 12 (99). pp. 46081-46092.

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Abstract

Chromosome karyotyping is an important yet labor-intensive procedure for diagnosing genetic diseases. Automating such a procedure drastically reduces the manual work of cytologists and increases congenital disease diagnosing precision. Researchers have contributed to chromosome segmentation and classification for decades. However, very few studies integrate the two tasks as a unified, fully automatic procedure or achieved a promising performance. This paper addresses the gap by presenting: 1) A novel chromosome segmentation module named ChrRender, with the idea of rendering the chromosome instances by combining rich global features from the backbone and coarse mask prediction from Mask R-CNN; 2) A devised chromosome classification module named ChrNet4 that pays more attention to channel-wise dependencies from aggregated informative features and calibrating the channel interdependence; 3) An integrated Render-Attention-Architecture to accomplish fully automatic karyotyping with segmentation and classification modules; 4) A strategy for eliminating differences between training data and segmentation output data to be classified. These proposed methods are implemented in three ways on the public Q-band BioImLab dataset and a G-band private dataset. The results indicate promising performance: 1) on the joint karyotyping task, which predicts a karyotype image by first segmenting an original microscopical image, then classifying each segmentation output with a precision of 89.75% and 94.22% on the BioImLab and private dataset, respectively; 2) On the separate task with two datasets, ChrRender obtained AP50 of 96.652% and 96.809% for segmentation, ChrNet4 achieved 95.24% and 94.07% for classification, respectively. The COCO format annotation files of BioImLab used in this paper are available at https://github.com/Alex17swim/BioImLab The study introduces an integrated workflow to predict a karyotyping image from a Microscopical Chromosome Image. With state-of-the-art performance on a public dataset, the proposed Render-Attention-Architecture has accomplished fully automatic chromosome karyotyping.

Item Type: Article
Uncontrolled Keywords: Bioengineering
Divisions: Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User: Symplectic Admin
Date Deposited: 05 Apr 2024 09:21
Last Modified: 19 Apr 2024 16:37
DOI: 10.1109/access.2024.3380829
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3180097