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Fig. 2 | Cancer Imaging

Fig. 2

From: Contrast-enhanced CT radiomics features to preoperatively identify differences between tumor and proximal tumor-adjacent and tumor-distant tissues of resectable esophageal squamous cell carcinoma

Fig. 2

In a 64-year-old male patient with esophageal squamous cell carcinoma (ESCC), the region of interest (ROI) was delineated slice by slice on axial contrast-enhanced computed tomography (CECT) images (A). The white arrow refers to the primary tumor of ESCC; the blue, red and green solid lines represent the position lines of the proximal tumor-distant (PTD) tissue, proximal tumor-adjacent (PTA) tissue and the proximal margin of ESCC on the reconstructed sagittal CECT image, respectively; and the yellow arrow along the longitudinal axis of the esophagus indicates the ruler measuring line for defining the boundary lines of the PTD and PTA tissues (B). The ROI covering more than half of the esophageal wall for PTA tissue is manually drawn on an axial magnified CECT image (C). The ROI delineation of PTD tissue is performed similarly to that of PTA tissue

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Cancer Imaging

ISSN: 1470-7330

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