Intracytoplasmic morphologically selected sperm injection

The shape of the sperm (morpology) is important in diagnosing male fertility problems and in predicting fertilisation and pregnancy outcomes. Studies have shown that selecting better shaped sperm does improve your chances of a successful clinical outcome.

IMSI is a variation of ICSI that uses a higher-powered microscope to select sperm. Normally, the ICSI technique is performed with a 200x–400x light microscope. For IMSI the latest generation light microscope is required with a magnification of up to 2700x.

This allows the embrologist to detect subtle structural alerations in sperm and select spermatozoa with the most normally shaped nuclei (which contains the genetic material).


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