期刊
JOURNAL OF STRUCTURAL BIOLOGY
卷 207, 期 1, 页码 1-11出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jsb.2019.03.008
关键词
FIB-SEM; 3D electron microscopy; Machine learning; Aging; Skeletal muscle; Mitochondrial structure; Semi-automated segmentation; Tissue imaging
资金
- Intramural Research Programs of the National Institute on Aging, NIH, Baltimore, MD
- Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD
- NATIONAL INSTITUTE ON AGING [ZIAAG000996] Funding Source: NIH RePORTER
Focused Ion Beam Scanning Electron Microscopy (FIB-SEM) is an imaging approach that enables analysis of the 3D architecture of cells and tissues at resolutions that are 1-2 orders of magnitude higher than that possible with light microscopy. The slow speeds of data collection and manual segmentation are two critical problems that limit the more extensive use of FIB-SEM technology. Here, we present an easily accessible robust method that enables rapid, large-scale acquisition of data from tissue specimens, combined with an approach for semi-automated data segmentation using the open-source machine learning Weka segmentation software, which dramatically increases the speed of image analysis. We demonstrate the feasibility of these methods through the 3D analysis of human muscle tissue by showing that our process results in an improvement in speed of up to three orders of magnitude as compared to manual approaches for data segmentation. All programs and scripts we use are open source and are immediately available for use by others.
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