Evaluation of the Quality of ScreeningMammograms at the Radiology Department of the Douala General Hospital: Analysis of 100 Cases Using the PGMI System

Objective: Use the PGMI (Perfect, Good, Moderately Good, Inadequate) system to evaluate the quality of screening mammograms performed at the Radiology Department of the Douala General Hospital during the Pink October 2024 campaign. Methods: A retrospective study analyzed 100 mammograms (craniocaudal [CC] and mediolateral oblique [MLO] views) using data sheets containing 16 criteria (8 for positioning, 8 for photographic quality). Results: At CC angle, 80.5% of images showed good visualisation of posterior and medial breast tissue, and 74.5% showed a well-defined nipple, classified as ‘P’ or ‘G’. In MLO, 85% visualised the lower part of the breast and a pectoral angle > 15？, but only 7.5% showed an unobstructed infra-mammary fold, limiting the classification to ‘G’ or ‘M’. Photographic criteria were 100% ‘P’, except for folds (45.5% ‘G’ or ‘I’). Conclusion: Mammograms are globally satisfactory, but the MLO incidence requires technical improvements to optimise diagnostic quality and reliability.