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Comparison of a column agglutination technology-based automated immunohematology analyzer and a semiautomated system in pretransfusion testing. | LitMetric
Introduction : Semi-automated equipment using Column agglutination technology (CAT) is widely used where centrifugation and incubation are automated but substantial amount of the work is still executed manually. Larger laboratories are moving towards automation to eliminate errors, reducing exposure to bio-hazardous samples, assuring traceability, reliability, turnaround time (TAT) and throughput. Moving towards automation and greater reliability, we therefore, decided to install an automated immunohematological (IH) analyzer "Vision". In this study we evaluated reliability and performance before clearing "Vision" for routine use.Materials And Methods : Study was conducted in the Department of Transfusion-Medicine. The primary objective was to assess the reliability of results and compare with routine use semi-automated BIOVUE system (Reference system). Secondary objective was to evaluate the performance (TAT and throughput) of the Vision to handle routine and emergency workload.Results : Total of 1276 known samples were used to assess 2640 pre-transfusion tests (1229 ABO/Rh D typing; 1229 antibody screening; 54 antibody identification; 86 crossmatch and 42 DAT). All 1229 ABO Rh typing results were concordant between the two systems. Overall agreement between the Vision IH analyzer and reference system for ABO Rh typing was 99.95%. All antibody screening, crossmatch and DAT results were concordant between the two systems. TAT of Vision was substantially shorter than the reference system for all test profiles.Conclusion : Based on study results, Vision was approved for routine use in laboratory. It was found to be reliable with considerably shorter TAT and capable of handling high throughput of immunohematological tests.
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