Assessment of Doses Received by Patients Who Underwent Abdominal Computed Tomography Using NCICT<sup>®</sup> Software

Estimating the radiation doses received from the growing demand for Computed Tomography (CT) scans helps to optimize protocols and image quality. With the aim of evaluating medical exposures in total abdomen protocols, this study extracted CT data from the Santa Catarina Telehealth and Telemedicine System (STT-SC), which was entered into the NCICT® 3.0 software to estimate the effective doses and organ doses for the examinations evaluated. The presentation of the main data obtained through statistical and descriptive analysis allows comparison with other studies. The average effective dose was 7.50 mSv for female patients (n=57) and 8.03 mSv for male patients (n=43). The spleen received the highest dose in the abdominal region, with an average of 10.99 (±4.24) mGy for men and 9.89 (±4.75) mGy for women. In conclusion, this study found variations in organ doses between male and female patients, with the lungs receiving the highest dose in women and the liver in men. These results support the need to review and adapt CT examination protocols to optimize radiation exposure, and the results presented in this study will allow for comparative evaluation with data that may be collected later as the study continues.