East African medical journal · 2014
UTILITY OF ROUTINE CHEST RADIOGRAPHS IN KENYA.
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Ndii M K, Kimani N M, Onyambu C K
Аннотация
BACKGROUND: Many otherwise healthy Kenyans are required to obtain chest radiographs as part of routine medical examination to exclude pulmonary TB, a condition of significant public health concern. Many of these people are required to have these radiographs taken yearly as part of routine check-up. No local data is available to support this practice. Though a quick procedure to perform and readily available throughout the country, chest radiograph exposes the individual to a dose of ionising radiation. Ionising radiation is associated with increased risk of malignancy. The cost is also substantial.
OBJECTIVE: To determine the prevalence of radiological findings consistent with PTB among routine medical examination chest radiographs.
DESIGN: A cross-sectional descriptive study.
SETTINGS: Department of Radiology Kenyatta National Hospital, Department of Imaging and Radiation Medicine, University of Nairobi, Plaza Imaging Solutions, a private radiology practice in Nairobi and Department of Radiology, the Nairobi Hospital.
SUBJECTS: Four hundred and two chest radiographs of patients presenting for routine medical examinations were analysed.
RESULTS: Sixty three radiographs had abnormal but clinically insignificant findings (16%). Only one radiograph (0.25%) had radiological features of PTB. The rest were reported as normal (84%).
CONCLUSION: In this study, the diagnostic yield for the intended purpose (to include/ exclude PTB) was extremely low (0.25%). It is recommended that routine chest radiographs as screening tools for active pulmonary tuberculosis be reconsidered due to poor diagnostic yield. The authors propose a bigger nation wide study before a policy decision can be proposed.
OBJECTIVE: To determine the prevalence of radiological findings consistent with PTB among routine medical examination chest radiographs.
DESIGN: A cross-sectional descriptive study.
SETTINGS: Department of Radiology Kenyatta National Hospital, Department of Imaging and Radiation Medicine, University of Nairobi, Plaza Imaging Solutions, a private radiology practice in Nairobi and Department of Radiology, the Nairobi Hospital.
SUBJECTS: Four hundred and two chest radiographs of patients presenting for routine medical examinations were analysed.
RESULTS: Sixty three radiographs had abnormal but clinically insignificant findings (16%). Only one radiograph (0.25%) had radiological features of PTB. The rest were reported as normal (84%).
CONCLUSION: In this study, the diagnostic yield for the intended purpose (to include/ exclude PTB) was extremely low (0.25%). It is recommended that routine chest radiographs as screening tools for active pulmonary tuberculosis be reconsidered due to poor diagnostic yield. The authors propose a bigger nation wide study before a policy decision can be proposed.