In the beginning of the year 2020 a new coronavirus disease (COVID-19) spread rapidly and affected the whole world. The disease is also diagnosed using radiology, but the gold standard is the computed tomography scan. Laboratory diagnosis is required but is not capable of showing what is happening inside the lungs. CT scan of lungs is significant in diagnosing COVID-19, monitoring the efficiency of the medical treatment and determining if patients are ready to be discharged. However, CT uses ionizing radiation. As a result the...

In our diagnostic center examinations were performed on the SIEMENS SOMATOM Emotion 16 CT scanner that was installed in 2017. The quality was evaluated retrospectively on scans of people with COVID-19, performed in years 2020 to 2021 and according to routine protocols, low dose and high dose scan protocols. The evaluation was conducted by a group of experienced radiologists after the scanning who judged the compromise between the irradiation dose received and the quality of the final image. During 9 months 86 scans of patients...

86 randomized exams (enrolment and follow-up CTs for each patient). Irradiation: Routine protocol Total DLP 218 mGy*cm, CTDIvol delivered 6,47 mGy and Protocol LungLowDose Total DLP 42 mGy*cm, CTDIvol delivered 1,1 mGy. [Fig 1][Fig 2][Fig 3][Fig 4] Overall an average of 80,3% reduction in the CTDIvol delivered, and a 82,99% reduction in the DLP delivered was observed while the quality of images remained the same. Control over patients’ exposure to radiation is dire for the safety optimization during medical visualization. This study has shown that...

The minimal dose of radiation on the patient that is somewhat the same with the one in Chest Radiography and with the high informational value of Computed tomography, allows for use of this new examination method for the yearly preventative examination (screening) or as an alternative for diagnosing virus infected lungs. The usage of our research results in the clinical routine will lead to a drastic decrease in radiation dosage. This is especially important for a selected group of people, for example young women or...

Matkevich Е.I., Sinitsyn V.E., Mershina E.A. COMPARATIVE SURVEY OF RADIATION DOSES TO PATIENTS IN COMPUTED TOMOGRAPHY IN A FEDERAL HOSPITAL. Journal of radiology and nuclear medicine. 2016;97(1):33-39. (In Russ.) https://doi.org/10.20862/0042-4676-2016-97-1-33-40 Radpour A, Bahrami-Motlagh H, Taaghi MT, Sedaghat A, Karimi MA, Hekmatnia A et al (2020) COVID-19 evaluation by low-dose high resolution CT scans protocol. Acad Radiol 27:901.https://doi.org/10.1016/j.acra.2020.04.016 A. J. van der Molen, A. Schilham, P. Stoop, M. Prokop & J. Geleijns A NATIONAL SURVEY ON RADIATION DOSE IN CT IN THE NETHERLANDS. Insights Imaging 4,...

O. Patskan: Nothing to disclose O. Kochmar: Nothing to disclose