Effects of CT device parameters on imaging

Computed tomography (CT) is a radiological imaging method for cross- sectional view of an object using collimated x-rays. Different voltage and current values are adjustable parameters for operation of CT, which are important for the x-rays beam. Also, these parameters are very effective in determining dose of the patient. In this study, the dose to be taken by the patient will be measured with the help of a phantom (computed tomography dose indicator (CTDI) phantom) using the body equivalent and with the help of an ion chamber located in side CTDI phantom at different voltage and different current values in the device parameters and for different tissue thicknesses. With necessary comparisons, optimum voltage and optimum current values will be determined for different tissue thicknesses according to dose values.