Array-based Comparative Genomic Hybridization

**Semantic type:** Laboratory Procedure

**Definition:** A molecular cytogenetic method combining chromosomal comparative genomic hybridization technique and microarray to detect chromosomal aberrations and changes in DNA copy numbers in the genome, using oligonucleotides immobilized on a solid support as targets for hybridization.

**Synonyms:** - Array CGH - Array CGH - Array Comparative Genomic Hybridization - aCGH - aCGH