title: [Comparative study of prenatal diagnosis with single nucleotide polymorphism array and karyotype analysis].
abstract: OBJECTIVE
  To compare the roles of single nucleotide polymorphism array (SNP array) and karyotype analysis in high-risk pregnant women prenatal diagnosis.
  
  
  METHODS
  From July 2012 to December 2013, a total of 141 pregnant women with high-risk in prenatal diagnosis were selected as the object of study in Department of Obstetrics and Gynecology, Peking University Third Hospital, 78 cases of umbilical cord puncture and 63 of amnion cavity puncture , both taking SNP array detection and karyotype analysis.
  
  
  RESULTS
  The abnormality karyotype rate was 6.4%, the abnormal rate of SNP array result was 11.3%, and the abnormal rate of the combined two methods for detecting was 12.1%. There were significant differences between the SNP array and karyotype analysis (P=0.039).
  
  
  CONCLUSIONS
  There were obvious differences between the two techniques. It is an effective way to determine genetic disease by integrating SNP array and karyotype analysis in prenatal diagnosis.
authors.affiliation: Department of Obstetrics and Gynecology, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction,Beijing 100191, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Chang
authors.affiliation: Department of Obstetrics and Gynecology, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction,Beijing 100191, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Zhao
authors.affiliation: Department of Obstetrics and Gynecology, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction,Beijing 100191, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Wei
authors.affiliation: Department of Obstetrics and Gynecology, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction,Beijing 100191, China.
authors.forename: Su
authors.initials: S
authors.lastname: Zhong
authors.affiliation: Department of Obstetrics and Gynecology, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction,Beijing 100191, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Liu
authors.affiliation: Department of Obstetrics and Gynecology, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction,Beijing 100191, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Qiao
mesh_terms: D005260:Female; D006801:Humans; D059785:Karyotype; D007621:Karyotyping; D020641:Polymorphism, Single Nucleotide; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D017422:Sequence Analysis, DNA