目的 为探讨两种分析仪测定β-HCG结果的可比性，为本结果的一致性提供依据。方法 分别在雅培Architect i1000与西门子Dimension XPand测定β-HCG，依据CLSI的EP9-A2文件的规定，以Architect i1000为比较方法，以Dimension XPand为实验方法，进行比对试验。结果 两种分析仪结果间均呈良好的线性关系，其相关系数r均大于0．975，相对偏倚小于可接受限(20%)。结论 两种分析仪可以用来检测β-HCG ，两种分析仪间检验结果有良好的相关性。

Objective To explore the comparability of β-HCG detection results by two analyzers. Methods The serum β-HCG levels were detected by ABBOTT Architect i1000 and SIEMENS Dimension XPand analyzer. The results were compared by referring to the document of NCCLS EP9-A2. Results The testing results of serum β-HCG by two different analyzers were linear correlation (r>0．975)．Their anticipated biases were within accepted biases (20%)．Conclusion The two analyzers could be used for detection of serum β-HCG with clinical acceptance.