Research Article

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

Table 2

The effect of tube voltage on ARD (mGy) for prospective EKG gated/step & shoot method at both 64-row and 320-row protocols.

ProtocolskVp 100kVp 120 value

320-row mode10.9817.210.087
64-row mode14.4722.300.147

ProtocolskVp 100kVp 135 value

320-row mode10.9822.09<0.05
64-row mode14.4729.97<0.05