Absorbed Radiation Dose in Radiosensitive Organs Using 64- and 320-Row Multidetector Computed Tomography: A Comparative Study

Table 4

The effect of tube voltage variation on ARD (mGy) for dose modulation protocol at both 64-row and 320-row modes.

Protocols	kVp 100	kVp 120	value
320-row mode	17.57	27.15	0.072
64-row mode	38.76	61.34	0.131
Protocols	kVp 100	kVp 135	value
320-row mode	17.574	34.26	<0.05
64-row mode	38.76	80.61	<0.05