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Insights into Imaging
Fig. 5 | Insights into Imaging

Fig. 5

From: Evaluation of optimal monoenergetic images acquired by dual-energy CT in the diagnosis of T staging of thoracic esophageal cancer

Fig. 5

A and E, 66-year-old man with esophageal cancer, venous phase PEI image A, venous phase MEI (+) 40 keV image E, PEI image CT cannot distinguish the tumor, MEI (+) 40 keV shows the high-density muscularis mucosae (blue arrow) and muscularis propria (yellow arrow) are interrupted, and the lesion (Red arrow) is staged as T1b. B and F, 64-year-old man with esophageal cancer, venous phase PEI image B, venous phase MEI (+) 40 keV image F, PEI image CT cannot distinguish the boundary of tumor, MEI (+) 40 keV shows the tumor-invaded muscularis propria (yellow arrow) and the boundary of lesion is clear (Red arrow). The lesion is staged as T2. C and G, 69-year-old man with esophageal cancer, venous phase PEI image C, venous phase MEI (+) 40 keV image G, PEI image CT show the boundary of tumor is not clear, MEI (+) 40 keV shows the tumor-invaded serosa (yellow arrow) and cystic necrosis was evident in the lesion. The lesion is staged as T3. D and H, 62-year-old man with esophageal cancer, venous phase PEI image D, venous phase MEI (+) 40 keV image H, PEI and MEI (+) 40 keV image CT all show the tumor-invaded descending aorta (red arrow). The lesion is staged as T4b

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