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Related Experiment Video

Updated: May 18, 2026

Mouse Round Spermatid Injection

Mouse Round Spermatid Injection

Published on: January 26, 2024

Intracytoplasmic morphology-selected sperm injection.

Luke Simon¹, Aaron Wilcox, Douglas T Carrell

¹Andrology and IVF Laboratories, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA.

Methods in Molecular Biology (Clifton, N.J.)

|September 21, 2012

Summary

This summary is machine-generated.

Intracytoplasmic morphologically selected sperm injection (IMSI) enhances intracytoplasmic sperm injection (ICSI) for male infertility. IMSI uses high magnification to select sperm morphology, improving assisted reproduction outcomes.

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Manipulation and In Vitro Maturation of Xenopus laevis Oocytes, Followed by Intracytoplasmic Sperm Injection, to Study Embryonic Development

Published on: February 9, 2015

Area of Science:

Reproductive Medicine
Andrology
Assisted Reproductive Technology (ART)

Background:

Male subfertility contributes to approximately 40% of couple infertility.
Intracytoplasmic sperm injection (ICSI) is a key ART technique for male infertility.
Intracytoplasmic morphologically selected sperm injection (IMSI) is an advanced ICSI method.

Purpose of the Study:

To detail the advanced methodology of IMSI.
To highlight modifications in sperm preparation for IMSI compared to conventional ICSI.
To discuss the significance of sperm morphology evaluation in assisted reproduction.

Main Methods:

Evaluation of sperm morphology under high magnification prior to injection.
Utilizing MSOME (Motile Sperm Organismal Morphology Examination) criteria.
Employing specific sperm preparation techniques including prolonged manipulation and storage.

Main Results:

IMSI allows for detailed assessment of sperm morphology.
Specific procedural modifications distinguish IMSI from standard ICSI.
These variations aim to optimize sperm selection for improved fertilization outcomes.

Conclusions:

IMSI represents a sophisticated advancement in ICSI procedures.
Careful sperm selection and preparation are crucial in overcoming male infertility.
The discussed variations in IMSI contribute to its efficacy in assisted reproduction.