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Fig. 3 | Cancer Imaging

Fig. 3

From: Preoperative CT-based radiomics combined with tumour spread through air spaces can accurately predict early recurrence of stage I lung adenocarcinoma: a multicentre retrospective cohort study

Fig. 3

Region of interest segmentation and feature extraction. A The tumor on the CT image was manually segmented and ROI-tumoral was constructed. 3 voxel units, 6 voxel units and 12 voxel units were respectively amplified outward to construct ROI-3u, ROI-6u and ROI-12u based on the ROI-tumoral. B Peritumoral areas that expand beyond the lung parenchyma are erased to prevent errors. C-D The maximum cross-section of ROI-tumoral was extracted separately to extract deep learning features by convolutional neural network

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Cancer Imaging

ISSN: 1470-7330

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