Chromosomal Microarray(CMA315k) - Affymetrix Cytoscan Optima

18,018 CNV probes and 148,450 SNP markers uniformly spaced over the genome with enhanced interrogation of 396 regions(25 markers/100 kb) of prenatal interest. A minimum resolution of 500kb for losses, 1 MB for gains and 5 MB for LOH/AOH