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Automated sperm concentration analysis with a new flow cytometry-based device, S-FCM
Takumi Tsuji1, Hiroshi Okada, Masato Fujisawa
1Department of Urology, Kobe University School of Medicine, Japan.
American Journal of Clinical Pathology
|March 13, 2002
Summary
The sperm flow cytometer (S-FCM) offers a highly reproducible and rapid method for measuring sperm concentration. This automated analysis is accurate, even at low concentrations, outperforming manual methods.
Area of Science:
- Andrology
- Reproductive Medicine
- Clinical Laboratory Science
Background:
- Accurate sperm concentration measurement is crucial for male infertility diagnosis.
- Manual methods like the Makler chamber and improved Neubauer hemacytometer have limitations in speed and precision, especially at low concentrations.
Purpose of the Study:
- To evaluate the reproducibility and accuracy of the sperm flow cytometer (S-FCM) for sperm concentration analysis.
- To compare the performance of S-FCM with manual methods (Makler chamber, improved Neubauer hemacytometer).
Main Methods:
- Semen samples from 104 men were analyzed using S-FCM.
- Reproducibility was assessed through between- and within-run imprecision analyses.
- S-FCM results were compared with manual sperm counting techniques.
Main Results:
- S-FCM demonstrated high reproducibility with a carryover rate of ≤0.17%.
- Within-run coefficients of variation for S-FCM were <5%, significantly lower than manual methods at low concentrations (17.7%-28.7%).
- S-FCM analysis time was significantly faster (110 seconds) compared to manual methods (5-10 minutes).
Conclusions:
- S-FCM is a highly reproducible and efficient automated method for sperm concentration measurement.
- The S-FCM is suitable for accurate quantitative analysis of sperm concentration, including low levels.
- S-FCM offers a significant time-saving advantage over traditional manual sperm counting techniques.