TABLE 2

Differences in imaging duration and radiation dose between chest computed tomography scanner types

16-slice64-slice128-slice
Imaging duration (s)∼8.3∼8.5∼3.5
Effective dose (mSv)9.527.59.46
CTDIvol (mGy per 100 mAs body)11.6517.1110.4±2.1

Note that these are example values, since different studies have reached different results regarding the dose efficiency of multislice computed tomography scans. CTDIvol: volume computed tomography dose index.