Table 1 Exposure-parameters for phantom study

Modality

Siemens Artis Q^a

Philips Multi Diagnost Eleva FD^b

Table height (cm)

90

80

Operator phantom height, h (cm)

165

165

Central beam axis—operator phantom front distance, d (cm)

26

25

Central beam axis—operator phantom side distance, s (cm)

58

66

Protocol

Abdomen

Abdomen

Exposure mode

Acquisition

Acquisition

Zoom (cm)

42

48

Source image distance

120

125

Patient phantom surface—detector distance, y (cm)

50

54

Frames per second

4

2

Tube voltage (kV)

70

90

Tube load (mAs)

30

25

Filter

No

1 mm Al, 0.1 mm Cu

DAP^c (Gycm2)

400

130