Estimation of effective doses of radiation for patients with novel Coronavirus Disease Undergoing Chest CT scans. | ||||
| Arab Journal of Nuclear Sciences and Applications | ||||
| Article 11, Volume 54, Issue 4, October 2021, Page 102-108 PDF (761.76 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajnsa.2021.72242.1463 | ||||
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| Authors | ||||
SHABAN ABDEL HAMEED ALRAMLAWY  1; Eslam Maamoun2
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| 1Department of Critical Care, Faculty of Medicine, Cairo University, Cairo, Egypt. | ||||
| 21-Faculty of Medicine Department of Critical Care- Cairo University Hospitals ,Cairo University, Egypt 2- Medical Physics Department, Kundiawa General Hospital,Kundiawa ,Papua New Guinea - | ||||
| Abstract | ||||
| ABSTRACT Evaluating the hazards and beneficiary of the chest - CT imaging for patients of COVID-19 Subjects and Methods: - A total number of 160 suspected Covid-19 patients were classified into four groups (GP1(n=40) ,GP2(n=40) and GP3(n=40)). The groups undergoing CT chest examination (Toshiba, Activion 16) .The acquisition protocols for the different groups were as follows: GP 1 ((n=40), 100 Kv , 160 ±15 mAs , GP2 ((n=40) , 120 Kv , 150 ±20 mAs) , GP3((n=40) , were 120 Kv Sure Exposure (SE), GP4((n=40) , 100 Kv , Sure Exposure (SE)) . and the other parameters are (pitch=1.5; rotation time=0.75 sec; matrix size 512x512), All images were reconstructed by Filtered Back Projection. Results:- The CTDI volume for the different groups were: (GP1: 7.8±0.09 mGy ; GP2: 26.4 ±0.25mGy; GP3: 16.8 ±4.7mGy; GP4: 5.5±0.1mGy , P In contrast, CNR and SNR were insignificantly different (P>0.05) among all groups. GP1and GP4 has a highly significant noise (P<0.05), in comparison with GP2 and GP3. Conclusion: The study demonstrates that chest CT performed with 100 kV protocol and dose modulation ( | ||||
| Keywords | ||||
| Effective doses; COVID19; image quality; CTCHEST | ||||
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