Assessment of radiation exposure among pediatric patients referred for CT imaging at three government hospitals in Addis Ababa, Ethiopia.

Background: Due to the high sensitivity of their growing tissues to ionizing radiation, pediatric patients are at a greater risk of cancer development.

Objective: This study aimed to evaluate the level of radiation exposure experienced by pediatric patients undergoing a common CT examination at the three government hospitals in Addis Ababa, Ethiopia.

Materials And Methods: Structured formats were designed for data collection at three government hospitals, and then information about pediatric patients' demography, CT protocols, and CT systems was retrieved and recorded from March 2018 up to July 2018.

Comparison of Chest Computed Tomography (CT) Imaging Patterns and Severity among COVID-19 Patients during the First and Fourth Waves in Addis Ababa, Ethiopia.

Background: Studies done globally had shown that chest imaging patterns of Corona virus disease 2019 (COVID-19) infection varied depending on the strains of the virus and the waves of the pandemic. There is no published literature done in Ethiopia to examine whether there is any difference in chest computed tomography (CT) findings of COVID-19 patients during the first and fourth waves. Thus, this study tries to fill the gap of knowledge in that regard.

Local Diagnostic Reference Levels for Common Adult Computed Tomography Procedures in Addis Ababa.

Background: Computed Tomography has become the major source of population exposure in diagnostic x-rays. This concerned issue will be resolved by stetting Local Diagnostic Reference Levels.

Objectives: The main objective of this study is to assess dose indicators for the establishment of Local Diagnostic Reference Levels.

Establishment of local diagnostic reference levels for common adult CT examinations: a multicenter survey in Addis Ababa.

Background: In medical imaging, a computed tomography (CT) scanner is a major source of ionizing radiation. All medical radiation exposures should be justified and optimized to meet the clinical diagnosis. Thus, to avoid unnecessary radiation doses for patients, diagnostic reference levels (DRLs) have been used.

Assessment of Adult's Abdominopelvic Computed Tomography Radiation Doses in Amhara Region, Ethiopia.

Background: Computed Tomography plays a priceless role for diagnostic and therapeutic purpose; however, applying an optimized Computed Tomography Technique to produce qualified image while delivering minimum radiation dose to patients is the common challenge. The main objective of this study was to establish local diagnostic reference levels for adult patients who visited abdominopelvic Computed Tomography examination.

Methods: A total of 158 patients who had taken abdominopelvic Computed Tomography examination from three selectedAmhara region hospitals were investigated.

Level of Awareness of Mammography among Breast Cancer Patients Attending Follow-up at a Tertiary Hospital, Addis Ababa, Ethiopia.

Background: Breast cancer is the most common cancer type and the most common cancer related cause of death worldwide in women. This study was aimed to assess the awareness of mammography among breast cancer patients attending follow-up at Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia.

Methods: Hospital based cross sectional study was conducted from July 01 to August 30, 2017 at Tikur Anbessa Specialized Hospital.

Computed Tomography Radiation Exposure among Urinary Tract Stone Patients at Tikur Anbessa Specialized Hospital: A Retrospective Study.

Background: National and multinational surveys indicate large variability of Computed Tomography urinary tract Stone doses. The wide use of abdominopelvic Computed Tomography in the diagnosis, raised the issue of radiation exposure. Hence, this study was conducted to assess Computed Tomography radiation exposure of urinary tract Stone Patients there by, to compare the results from established reference values and other published studies.

Suggested Local Diagnostic Reference Levels for Possible Pediatric X-Ray Optimization in Addis Ababa, Ethiopia.

Background: Early childhood radiation exposure carries an enhanced radiation risk of about two to three times as high as in adults. The objective of this study was to determine local diagnostic reference levels for the most frequent pediatric x-ray examinations in Addis Ababa, Ethiopia.

Methods: A cross-sectional study was conducted on 18 public and private hospitals/clinics in Addis Ababa.