Performance evaluation of the new hematology analyzer Sysmex XN-series.

Abstract:

INTRODUCTION:The Sysmex XN-series is a new automated hematology analyzer designed to improve the accuracy of cell counts and the specificity of the flagging events. METHODS:The basic characteristics and the performance of new measurement channels of the XN were evaluated and compared with the Sysmex XE-2100 and the manual method. Fluorescent platelet count (PLT-F) was compared with the flow cytometric method. The low WBC mode and body fluid mode were also evaluated. For workflow analysis, 1005 samples were analyzed on both the XN and the XE-2100, and manual review rates were compared. RESULTS:All parameters measured by the XN correlated well with the XE-2100. PLT-F showed better correlation with the flow cytometric method (r(2)  = 0.80) compared with optical platelet count (r(2)  = 0.73) for platelet counts <70 × 10(9) /L. The low WBC mode reported accurate leukocyte differentials for samples with a WBC count <0.5 × 10(9) /L. Relatively good correlation was found for WBC counts between the manual method and the body fluid mode (r = 0.88). The XN made less flags than the XE-2100, while the sensitivities of both instruments were comparable. CONCLUSION:The XN provided reliable results on low cell counts, as well as reduced manual blood film reviews, while maintaining a proper level of diagnostic sensitivity.

journal_name

Int J Lab Hematol

authors

Seo JY,Lee ST,Kim SH

doi

10.1111/ijlh.12254

subject

Has Abstract

pub_date

2015-04-01 00:00:00

pages

155-64

issue

2

eissn

1751-5521

issn

1751-553X

journal_volume

37

pub_type

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