TY - JOUR ID - 13047 TI - Strategy of computed tomography image optimization in cervical vertebra and neck soft tissue in emergency patients JO - Iranian Journal of Medical Physics JA - IJMP LA - en SN - AU - Davoudi, Mohammad AU - Ataei, Gholam Reza AU - Davoudi, Yasser AD - Department of Medical Radiation Engineering, Central Tehran Branch, Islamic Azad University, Tehran AD - Radiological technology department faculty of paramedical sciences, Babol University of Medical Science, Babol, Iran AD - PhD of Biomedical Engineering, Department of Medical Engineering, Semnan University of Medical Sciences, Semnan, Iran Y1 - 2018 PY - 2018 VL - 15 IS - Special Issue-12th. Iranian Congress of Medical Physics SP - 383 EP - 383 KW - Computed Tomography KW - Dose optimization KW - Dose Reduction KW - CTDIw KW - CTDIvol DO - 10.22038/ijmp.2018.13047 N2 - Introduction: Due to the use of ionizing radiation in the CT scan, optimal parameters should be used to reduce the risk of cancer in patients who are constantly exposed to X-rays. The aim of this study was to optimize the parameters used in CT scan of cervical vertebrae and neck soft tissue with minimal loss of image quality   Materials and Methods: In this study, the patients were divided into two groups. The first group consisted of patients scanned with Default parameters and the second group scanned with new parameters. The findings included cervical vertebra and soft tissue protocols. The ImpactDose program was used to estimate the organs doses. All the images shown good diagnostic quality and the doses of organs around them were significantly decreased   Results: Good agreement was found between the new images and the default parameters. There was no significant quality reduction in the optimized images. The decrease in radiation dose in soft tissue protocol is: kV16.66%, mA31.25%, pitch24.13, rotation time33.3%, and in the cervical vertebra is: kV16.66%, mA64.28%, pitch48.27%. Decrease of these parameters reduced CTDIw 80.97%, CTDIvol90% and DLP90.21% in the cervical vertebra protocol, as well as CTDIw75.47%, CTDIvol81.34% and DLP81.36% in the soft tissue protocol   Conclusion: The results obtained in this study can be used in neck CT scan protocols in soft tissue and cervical vertebra windows. Due to reduction in the dose of the target area and the organs surrounding, these protocols could be used to reduce the risk of cancer and emergency patients UR - https://ijmp.mums.ac.ir/article_13047.html L1 - ER -