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. Interviewer administered questionnaire was used to obtain data from 270 breast cancer patients who came to radiology department for follow up imaging. Collected data were checked for completeness, coded and entered into Epi Info 3.1 software and exported to SPSS Version 21 for analysis. Results: Two hundred and twenty four (83%) of the study participants had no awareness of mammography while 46 (17%) of them had awareness of mammography. Out of the total 270 women, only 38(14.1%) had mammography test. In multivariate logistic regression analysis; level of education was found to have significant association with awareness of mammography. Women with breast cancer who completed secondary education were 4.5 times (AOR= 4.5; 95% CI: 1.39, 14.77) more likely to have awareness of mammography compared to women with breast cancer who were illiterate. Conclusion: This study revealed low awareness, knowledge and practice of mammography among women with breast cancer. Knowledge of participants about risk factor for breast cancer was also low.

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. Methods: A retrospective cross-sectional was done on 100 urinary tract Stone patients who have at least one computed tomography scan as part of their follow-up or for diagnosis purposes from February 1 to May 31, 2021, at Tikur Anbesa Specialized Hospital. Data were collected using a structured questionnaire format that evaluates the number of Computed Tomography they had, scan parameters, dose indicators, and socio-demographic characteristics. Finally, the collected data were analyzed using statistical software SPSS version 22. Results: Out of 100 patients 3.6%of our patients have radiation exposure of more than 4mSv, which is the standard for low-dose Computed Tomography. The median radiation exposure is 1.27mSv per scan. Exposure factors like tube current, tube current products, dose length product, and scan range all have similar values with an almost null interquartile range. All the scans that overpassed the low dose threshold(4mSv) were done outside Tikur Anbesa Specialized Hospital. Conclusion: Our study showed that Tikur Anbesa Specialized Hospital's low-dose CT protocol for patients with urinary tract Stone is well optimized as opposed to non- Tikur Anbesa Specialized Hospital.