[Quality evaluation of 3 sperm counting chambers by computer-assisted sperm analysis system]

Area of Science:

• Reproductive biology
• Andrology
• Medical technology

Background:

• Accurate sperm analysis is crucial for male fertility assessment.
• Computer-assisted sperm analysis (CASA) systems offer objective quantification of sperm parameters.
• Various sperm counting chambers exist, each with potential variations in precision.

Purpose of the Study:

• To compare the precision of three common sperm counting chambers (Makler, Leja, Microcell) using a CASA system.
• To evaluate the impact of different chambers on sperm density and motility measurements.
• To determine the most reliable chamber for sperm analysis.

Main Methods:

• Latex bead solutions and clinical semen samples were analyzed.
• Samples were analyzed 30 times per chamber using Makler, Leja, and Microcell chambers.
• Sperm density, forward movement, and motility were quantified using CASA.

Main Results:

• Significant differences in average sperm density were observed among the three chambers (P < 0.05).
• The Makler chamber yielded significantly higher rates of sperm forward movement and motility compared to Leja and Microcell chambers (P < 0.05).
• No significant differences in sperm parameters were found between the Leja and Microcell chambers (P > 0.05).

Conclusions:

• Sperm density measurements vary significantly depending on the counting chamber used.
• Coverslip-pressed chambers (like Makler) may provide higher rates of sperm motility compared to capillary-drawn chambers (like Leja and Microcell).
• The choice of sperm counting chamber impacts the accuracy and reliability of CASA-based semen analysis.