Effects of Scan Parameters on Patients Radiation Dose in Multi-Slice Helical CT Scan

Samia A. Fathelrahman

Abstract: Computed tomography (CT) has established itself as a primary diagnostic imaging modality, the number and impact of clinical applications of CT have continued to grow. Understanding of a few basic CT scan parameters is essential, and knowledge of how to manipulate these parameters to produce diagnostic images at lower doses is critical for safe imaging. The aim of this study was to recognize the relation between the patient radiation dose and adjustable scan parameters in stander routine CT head protocol using multi-slice helical CT scanner.

Keywords: CT, mA, kVp, Pitch, CTDIVOL, DLP