Women with dense breast tissue may require additional imaging modalities like ultrasound or MRI because mammograms may not be sufficient.

“and so for women who actually have dense breast tissue so they for some reason if they're postmenopausal or if they're pre menopausal in their childbearing age they still have a lot of glandular tissue that means a mammogram might not be enough and therefore they need another second imaging modality to look through the tissue and that's where alter sound comes in and as well as MRI would come in as well to be able to see through that dense glandular tissue that the mammogram can't see through”