IMSI stands for intracytoplasmic morphologically selected sperm injection. This is an ICSI in which the sperm to be microinjected has been carefully selected based on its morphology. In order to select the sperm, ICSI is performed under a high magnification microscope that allows the morphological qualities of the sperm to be seen in detail.
Therefore, IMSI is an ICSI performed under a 6300 magnification microscope instead of the usual 400 magnification of ICSI.
Read the full article on: IMSI in IVF – differences to ICSI, advantages and disadvantages ( 78).

Rebeca Reus
BSc, MSc
Degree in Human Biology (Biochemistry) from the Pompeu Fabra University (UPF). Official Master's Degree in Clinical Analysis Laboratory from the UPF and Master’s Degree about the Theoretical Basis and Laboratory Procedures in Assisted Reproduction from the University of Valencia (UV).