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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.7
- 수록면
- 183 - 190 (8page)
- DOI
- 10.47429/lmo.2022.12.3.183
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초록· 키워드
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Background: Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is a rapid and reliable method for microorganism identification. Herein, we compared the performance of the recently developed ASTA MicroIDSys (ASTA, South Korea) with that of the Bruker Biotyper (Bruker Daltonics, Germany) for identifying various Acinetobacter species.
Methods: A total of 207 specimens comprising 22 Acinetobacter type or reference strains and 185 clinical isolates previously identified using molecular methods were tested per the manufacturers’ recommendation, and the obtained results were compared.
Results: The overall correct identification rates at the species level using the Bruker Biotyper and the ASTA MicroIDSys systems were significantly different (P <0.001) at 89.4% (185/207) and 96.6% (200/207), respectively. The correct identification rates within the Acinetobacter baumannii (Ab) group were similar (P =0.094) at 94.9% (166/175) and 97.1% (170/175), respectively. However, the correct identification rates within the non-Ab group were significantly different (P <0.05), at 59.4% (19/32) and 93.8% (30/32), respectively. When the twelve strains were excluded as the species were absent from the Bruker database, the overall identification results did not differ significantly (P =0.289).
Conclusions: Both instruments were suitable for identifying commonly isolated Acinetobacter species in clinical microbiology laboratories, showing equivalent performance for the Ab group, while the ASTA MicroIDSys identified the non-Ab group with higher accuracy than the Bruker Biotyper.
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