Sperm motility analysis using multi-exposure photography (MEP): validity of the method with normal and abnormal...

Area of Science:

• Reproductive biology
• Andrology
• Semen analysis

Background:

• Spermatozoon motility is a key indicator of male fertility.
• Accurate semen analysis is crucial for reproductive assessments.
• Traditional motility evaluation can be subjective.

Purpose of the Study:

• To validate the multiple exposure photography (MEP) technique for sperm motility analysis.
• To assess the accuracy and sensitivity of MEP.
• To investigate MEP's utility in differentiating patient subgroups based on motility.

Main Methods:

• Validation of the multiple exposure photography (MEP) technique.
• Accuracy and sensitivity assessment using defined criteria.
• Retrospective analysis of patient groups (fertile, normozoospermic, asthenozoospermic).

Main Results:

• The MEP technique demonstrated high accuracy.
• Within-assay and between-assay coefficients of variation were <6% and <17%, respectively.
• Maximal sensitivity required counting 100 spermatozoa.
• Significant differences in motility patterns were observed between fertile, normozoospermic, and asthenozoospermic groups.
• Asthenozoospermic group was further classified into three subgroups based on altered motility variables.

Conclusions:

• Multiple exposure photography (MEP) is a validated, accurate, and sensitive objective method for sperm motility assessment.
• MEP effectively differentiates patient subgroups, including fertile, normozoospermic, and asthenozoospermic individuals.
• The technique allows for detailed classification within asthenozoospermic populations, aiding in understanding fertility potential.