Measurement Of Radiation Doses In Computed Tomography And Estimated Radiological Risk Factor Of Cancer

Abstract

The research evaluated head and chest and abdominal third-level computed tomography (CT) doses received by Babel Governorate patients in Iraq and compared the findings to international reference parameters. 120 CT scans were obtained from Philips 128-slice machines together with Philips 64-slice machines and Siemens 64-slice machines. The study derived dose length products (DLP) and effective doses from volume CT dose index (CTDIvol) measurement. CTDI and DLP readings of head and chest scans remained underneath global benchmark levels yet abdominal scans surpassed the benchmarks due to extended scan times and added scanning phases. The Siemens 64-slice recorded the lowest mean effective dose at 1.23 mSv during head examinations followed by Philips 128-slice at 2.86 mSv as well as Philips 64-slice at 3.08 mSv. The Siemens 64-slice deliver a chest scan dose of 4.76 mSv at the same level as the Philips 128-slice delivers 8.59 mSv and 13.32 mSv for the Philips 64-slice. The CT procedures required 7.03 mSv for the Philips 64-slice scanner, 15.32 mSv for the Philips 128-slice model and 6.71 mSv for the Siemens 64-slice scanner. The Siemens 64-slice machine offered lower radiation doses than both versions of the Philips machines. The research shows head and chest CT doses remained within the safety threshold yet abdominal CT doses need further optimization to decrease radiation risks. Effective dose calculations demonstrate how patients of all ages but especially the younger ones need radiation protection because they need to undergo numerous scans. To achieve patient safety with maintained diagnostic accuracy healthcare facilities should employ dose-reduction methods and execute regular dose audits and utilize modern CT technology.