Intracytoplasmic Morphologically Selected Sperm Injection
Intracytoplasmic Morphologically Selected Sperm Injection
In conventional ICSI, the embryologist selects the most normal-looking motile sperm using a microscope that magnifies the sample up to 400 times. IMSI is a variation of ICSI that uses a high-power light microscope (enhanced by digital imaging) to magnify the sperm sample over 6000 times. This allows the embryologist to detect subtle structural alterations in sperm that a normal microscope could not detect. Sperm are then selected which have the most normally-shaped nuclei.
Intracytoplasmic Morphologically Selected Sperm Injection
IMSI is a modification of the ICSI technique where sperm samples are examined under a microscope that is almost 6000 times more powerful to better assess their "morphology". At higher power the embryologist can identify tiny defects in the sperm head that would not otherwise be visible with standard ICSI.he intracytoplasmic morphologically selected sperm injection (IMSI) procedure has been associated with better laboratory and clinical outcomes in assisted reproduction technologies.