Our multi-tier analysis is unique and fast becoming the hallmark of excellence in prenatal screening. Every scan is also scrutinized by the 2nd and 3rd tiers. The 2nd tier examines the baby images for problems. The 3rd tier assesses the ScanExpert quality of images. If we detect any problems with the baby we will arrange an appointment with our experts. If you qualify for Aseana Guarantee this visit will come at NO EXTRA COST.