Intra-cytoplasmic Morphologically Selected Sperm Injection (IMSI) is a real-time method where sperms are selected before the microinjection takes place. This is done using an inverted microscope that is able to provide a much greater magnifying power (around 6,600 times) than those that are normally used in reproductive laboratories (400 times) to carry out the ICSI.
Standard ICSI (approximately 200x magnification)
IMSI ( approximately 6000x magnification)
The advantage of IMSI
- To choose good quality sperm
- Improve fertilization and normal embryo development
- Reduce miscarriage rate
- Increase pregnancy rate
Who is IMSI for?
This is a treatment option if the male has
- poor sperm motility
- poor sperm morphology
- a low sperm count
- surgically recovered sperm