New technology is improving the chances of women falling pregnant through IVF by up to 50 per cent.

High-tech screening allows doctors to closely study embryos to ensure they're genetically healthy before being implanted during treatment.

One in four New Zealanders experience fertility problems.

Medical Director of ReproMed, Guy Gudex, said the technology could also result in fewer women having miscarriages.

"The miscarriage reduction is hugely important because to go through IVF over a year or two, get pregnant and then have a miscarriage is devastating.

"We're very confident this testing reduces the chances of a miscarriage by at least a half."

LISTEN ABOVE AS GUY GUDEX SPEAKS WITH MIKE HOSKING