A comparison study between the results of the Siemens ADVIA 120 analyzer and the manual method for differential leukocyte counts in sheep

© 2021 American Society for Veterinary Clinical Pathology.

Bibliographische Detailangaben
Veröffentlicht in:Veterinary clinical pathology. - 1975. - 50(2021), 2 vom: 30. Juni, Seite 203-208
1. Verfasser: Oikonomidis, Ioannis L (VerfasserIn)
Weitere Verfasser: Brozos, Christos, Kiossis, Evangelos, Tsouloufi, Theodora K, Kritsepi-Konstantinou, Maria
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Veterinary clinical pathology
Schlagworte:Journal Article blood smear complete blood count hematology leukogram ovine white blood cells
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245 1 2 |a A comparison study between the results of the Siemens ADVIA 120 analyzer and the manual method for differential leukocyte counts in sheep 
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500 |a Date Completed 30.08.2021 
500 |a Date Revised 30.08.2021 
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500 |a Citation Status MEDLINE 
520 |a © 2021 American Society for Veterinary Clinical Pathology. 
520 |a BACKGROUND: The ADVIA 120 is a widely used hematology analyzer, which has not been previously validated for determining differential leukocyte counts in sheep 
520 |a OBJECTIVES: We aimed to compare differential leukocyte counts on the ADVIA 120 (A-Diff) with counts obtained using the manual method (M-Diff) in sheep 
520 |a METHODS: Ethylenediaminetetraacetic acid-anticoagulated blood samples analyzed within 4 hours of collection were used. Samples with inappropriately filled tubes, detectable clots, overtly erroneous ADVIA peroxidase cytograms, and poor-quality blood smears were excluded from the study. Two independent observers compared the results of the A-Diff with those of the M-Diff. The M-diff was performed by counting 200 leukocytes on a blood smear 
520 |a RESULTS: Overall, 88 samples (44 rams and 44 ewes) were included. The correlation between the A-Diff and M-Diff was high for neutrophils (r = .873, P < .001), lymphocytes (r = .863, P < .001), and eosinophils (r = .750, P < .001), and low for monocytes (r = .212, P = .048). The Passing-Bablok regression analyses revealed constant error for eosinophils [1.17%; 95% confidence interval (CI): 0.67%, 1.55%] and proportional error for lymphocytes (0.84; 95% CI: 0.74, 0.95) and eosinophils (0.85; 95% CI: 0.74, 0.96). The Bland-Altman analyses revealed negative biases of 2.4% and 3.0% for neutrophils and lymphocytes, respectively, and positive biases of 3.2% and 0.8% for monocytes and eosinophils, respectively. The extremely low basophil percentages precluded a meaningful method comparison for this leukocyte type 
520 |a CONCLUSIONS: The ADVIA 120 appears to perform well for determining neutrophil, lymphocyte, and eosinophil percentages in sheep as compared with the manual method. However, blood smear examinations are recommended for the confirmation of abnormal differential leukocyte count results 
650 4 |a Journal Article 
650 4 |a blood smear 
650 4 |a complete blood count 
650 4 |a hematology 
650 4 |a leukogram 
650 4 |a ovine 
650 4 |a white blood cells 
700 1 |a Brozos, Christos  |e verfasserin  |4 aut 
700 1 |a Kiossis, Evangelos  |e verfasserin  |4 aut 
700 1 |a Tsouloufi, Theodora K  |e verfasserin  |4 aut 
700 1 |a Kritsepi-Konstantinou, Maria  |e verfasserin  |4 aut 
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773 1 8 |g volume:50  |g year:2021  |g number:2  |g day:30  |g month:06  |g pages:203-208 
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