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"Echocardiography in Nigeria: use, problems, reproducibility and potentials"
Okechukwu S Ogah1, Ademola T Adebanjo, Adedeji S Otukoya
1Department of Medicine, Federal Medical Centre, Idi-Aba, PMB 3031 Abeokuta, Nigeria. osogah56156@yahoo.com
Cardiovascular Ultrasound
|March 23, 2006
Summary
Two-dimensional guided M-mode echocardiography measurements demonstrate good intra-observer reproducibility and low variability in a Nigerian hospital setting. This validates the technique for cardiac assessment in this population.
Area of Science:
- Cardiology
- Medical Imaging
- Diagnostic Techniques
Background:
- Echocardiography is a valuable, cost-effective tool for diagnosing cardiac abnormalities.
- A key limitation of echocardiography is its inherent subjectivity.
- Assessing measurement consistency is crucial for reliable clinical application.
Purpose of the Study:
- To evaluate the intra-observer reproducibility of 2-dimensional guided M-mode echocardiography.
- To determine the validity of these measurements in a Nigerian metropolitan hospital.
- To address the subjectivity challenges in echocardiographic assessments.
Main Methods:
- Standard echocardiographic examinations were conducted on 20 adult patients.
- Measurements were repeated by the same observer in two sessions, seven days apart.
- Statistical analysis focused on agreement and error margins between repeated measurements.
Main Results:
- A strong intra-observer agreement was found between the two measurement sessions.
- Correlation coefficients ranged from 0.60 to 0.96, indicating good consistency.
- Measurement errors were low, falling between 0.050 and 0.205.
Conclusions:
- 2-dimensional guided M-mode echocardiography measurements are reproducible at the study center.
- Low intra-observer variability supports the reliability of this technique.
- Findings suggest echocardiography can be dependably used for cardiac evaluations in this setting.