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Table 4 MEI (+) 40 keV, PEI versus postoperative histopathology for T stage of esophageal cancer in the venous phase

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

Postoperative pathologic T stage

Preoperative MEI (+)40 keV T stage

Preoperative PEI T stage

T1

T2

T3

T4

T1

T2

T3

T4

T1 (n = 8)

7

0

1

0

5

3

0

0

T2 (n = 9)

0

7

2

0

2

4

3

0

T3 (n = 29)

0

3

24

2

1

8

17

3

T4 (n = 3)

0

0

1

2

0

0

1

2