Evaluation of the ARIA II Automated Radioimmunoassay Instrument
Author Information
Author(s): M. J. Duffy, J. Tuttlebee, F. O'Sullivan, M. Allen-Davis
Primary Institution: Department of Nuclear Medicine, St. Vincent's Hospital, Dublin 4, Eire
Hypothesis
The automation of radioimmunoassay tests can improve precision and efficiency compared to manual methods.
Conclusion
The ARIA II system provides acceptable precision for T4, T3, and TSH assays, although it is relatively slow in generating results.
Supporting Evidence
- The precision for T4 and T3 was comparable to that obtained with manual kits.
- Good correlations with little bias were found between automated and manual methods.
- No significant problem with carry-over was encountered in this study.
Takeaway
This study shows that a machine can do hormone tests more accurately than people, but it takes a bit longer to get the results.
Methodology
The study evaluated the ARIA II instrument's performance in measuring T4, T3, and TSH using a continuous-flow system and quality-control sera.
Limitations
The main limitation is the relatively slow result generation, especially for TSH assays.
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