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Table 4 Imaging methods for each computed tomography protocol

From: The efficacy of contrast protocol in hepatic dynamic computed tomography: multicenter prospective study in community hospitals

 

Protocol-A

Protocol-B

Protocol-C

Protocol-D

Detector-rows

16

13 (33.3)

4 (12.9)

6 (40.0)

4 (28.6)

 

64

26 (66.7)

27 (87.1)

9 (60.0)

10 (71.4)

Tube voltage

<120KV

1 (2.6)

0 (0.0)

0 (0.0)

0 (0.0)

 

120KV

36 (92.3)

29 (93.5)

15 (100.0)

14 (100.0)

 

>120KV

2 (5.1)

2 (6.5)

0 (0.0)

0 (0.0)

Tube current

Auto

33 (84.6)

29 (93.5)

14 (93.3)

14 (100.0)

 

Fixed

6 (15.4)

2 (6.5)

1 (6.7)

0 (0.0)

Scan speed

<0.5

4 (10.3)

2 (6.5)

1 (6.7)

0 (0.0)

 

0.5

20 (51.3)

26 (83.9)

12 (80.0)

11 (78.6)

 

0.5<

14 (35.9)

2 (6.5)

2 (13.3)

3 (21.4)

 

Unknown

1 (2.6)

1 (3.2)

0 (0.0)

0 (0.0)

  1. Note; Data presented as number (%) of CT machines; KV, kilovolt.