aCGH Array comparative genomic hybridization. This is a technique that is used for PGT to detect aneuploidy. Related Articles: Comprehensive guide to PGT-A PGS (PGT-A) success rates 144 “abnormal” (aneuploid/mosaic) embryos and their outcomes PGT-A meta-analysis finds live birth rates only improve with older patients Study finds differences in euploid, live birth rates among PGT-A testing labs