링크 : https://pubmed.ncbi.nlm.nih.gov/35299130/

일자 : 2022.05

제목 : Accuracy of ASTA MicroIDSys, a new matrix-assisted laser desorption/ionization time-of-flight mass spectrometry system, for the identification of Korean reference and clinical bacterial and yeast strains

Young Jin Ko ¹, O Jin Lee ¹, Seul-Bi Lee ¹, Choon-Mee Kim ², Jaehyeon Lee ³, Joong-Ki Kook ⁴, Soon-Nang Park ⁴, Jong Hee Shin ⁵, Soo Hyun Kim ⁶, Eun Jeong Won ⁷, Geon Park ¹, Seong-Ho Kang ¹, Sook-Jin Jang ⁸

 

Abstract

This study compared the accuracy of a new MALDI-TOF mass spectrometry system, ASTA MicroIDSys system, with that of MALDI Biotyper system for the identification of reference and clinical bacterial and yeast strains. The identification accuracy of the 2 systems was compared using a total of 406 strains comprising 142 aerobic and 180 anaerobic bacterial strains and 84 yeast strains. The genus and species identification rates were 98.0% and 89.4% using MicroIDSys and 96.1% and 89.4% using Biotyper, respectively. The species identification rates of MicroIDSys and Biotyper for aerobic bacteria were 93.0% and 97.2%, respectively, and those for anaerobic bacteria were 85.6% and 81.7%, respectively. The accuracy of yeast identification at the species level was 91.7% using MicroIDSys and 92.9% using Biotyper. These findings indicate that MicroIDSys could be useful for the accurate identification of bacteria and yeast in clinical microbiology laboratories.