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Radiographers' performance in chest X-ray interpretation: the Nigerian experience
E U Ekpo1, N O Egbe1, B E Akpan2
11 Department of Radiography and Radiology, University of Calabar, Calabar, Nigeria.
The British Journal of Radiology
|May 13, 2015
Summary
Nigerian radiographers demonstrate reasonable skill in interpreting chest X-rays. Performance in reading these diagnostic images is linked to years of experience and practice sector, suggesting potential to improve radiology services.
Area of Science:
- Medical Imaging
- Radiography
- Diagnostic Radiology
Background:
- Nigeria faces a shortage of radiologists, with fewer than 300 serving a population of 170 million.
- This scarcity highlights the need to explore alternative solutions for effective diagnostic imaging interpretation.
Purpose of the Study:
- To evaluate the performance of Nigerian radiographers in interpreting plain chest radiographs.
- To determine if age, years since qualification, and sector of practice influence radiographer performance.
Main Methods:
- 51 radiographers interpreted 50 chest radiographs (23 normal, 27 abnormal).
- Performance was assessed using Receiver Operating Characteristic (ROC) analysis.
- Mann-Whitney U test analyzed associations between performance and demographic/practice factors.
Main Results:
- Radiographers achieved a mean location sensitivity of 88.9%.
- Mean sensitivity and specificity for disease detection were 76.9% and 79.8%, respectively.
- Performance correlated positively with years since qualification (p=0.005) and private practice (p=0.004), but not age (p=0.07).
Conclusions:
- Nigerian radiographers can interpret chest radiographs to a satisfactory standard.
- Increased experience and practice in the private sector are associated with better interpretation performance.
- Radiographer-led chest X-ray interpretation could enhance radiology service delivery in Nigeria.
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