Figure 5.

Effect of different tube voltages on measured Hounsfield Units (HU). The left figure shows the measurements with the contrast agent module (no. 1) and the right figure those with the native module (no. 2). The solid line represents measurements with a “B30f” kernel and the dashed lines thus with a iterative “I30f3” kernel. A chest scan protocol with 2 mm slice thickness was used on a 9 mm contrast object.