Publications by authors named "Alex Muhulo"
The aim of this study was to evaluate the mean glandular dose (MGD), to assess the potential for optimization, and to propose diagnostic reference levels (DRLs). MGD was estimated from air kerma measurements and patient information collected during mammography examinations. The 75th percentile values were determined as the third quartile of the median MGD values for all hospitals, and DRLs set as 75th percentile of MGD values.
View Article and Find Full Text PDFThe aim of this study was to determine the entrance surface air kerma (ESAK) in adult patients during digital radiography and to evaluate the optimisation potential in five common X-ray examinations in Tanzania. Based on a sample of 240-610 patients, ESAK was estimated using X-ray tube output measurements, patient information and backscatter factors. The results show that the mean ESAK values were higher or comparable to data from the literature.
View Article and Find Full Text PDFArticle Synopsis
- - The study aimed to assess the optimization of common computed tomography (CT) procedures by measuring the volume computed tomography dose index (CTDIvol) and dose-length product (DLP) during various examinations.
- - Results indicated that variations in CTDIvol and DLP were primarily due to differences in the techniques employed, with specific values established for different CT procedures across multiple hospitals.
- - The findings, including key CTDIvol values (40.9, 9.0, 9.4, and 16.2 mGy) and corresponding DLP values (900, 360, 487, and 721 mGy.cm), provide a foundation for enhancing the optimization of CT procedures in the country.