title: [Ultrasonic measurements of fetal thalamus, caudate nucleus and lenticular nucleus in prenatal diagnosis].
abstract: OBJECTIVE
  To establish the reference values of thalamus, caudate nucleus and lenticular nucleus diameters through fetal thalamic transverse section.
  
  
  METHODS
  A total of 265 fetuses at our hospital were randomly selected from November 2012 to August 2014. And the transverse and length diameters of thalamus, caudate nucleus and lenticular nucleus were measured. SPSS 19.0 statistical software was used to calculate the regression curve of fetal diameter changes and gestational weeks of pregnancy. P < 0.05 was considered as having statistical significance.
  
  
  RESULTS
  The linear regression equation of fetal thalamic length diameter and gestational week was: Y = 0.051X+0.201, R = 0.876, linear regression equation of thalamic transverse diameter and fetal gestational week was: Y = 0.031X+0.229, R = 0.817, linear regression equation of fetal head of caudate nucleus length diameter and gestational age was: Y = 0.033X+0.101, R = 0.722, linear regression equation of fetal head of caudate nucleus transverse diameter and gestational week was: R = 0.025 - 0.046, R = 0.711, linear regression equation of fetal lentiform nucleus length diameter and gestational week was: Y = 0.046+0.229, R = 0.765, linear regression equation of fetal lentiform nucleus diameter and gestational week was: Y = 0.025 - 0.05, R = 0.772.
  
  
  CONCLUSIONS
  Ultrasonic measurement of diameter of fetal thalamus caudate nucleus, and lenticular nucleus through thalamic transverse section is simple and convenient. And measurements increase with fetal gestational weeks and there is linear regression relationship between them.
authors.affiliation: Department of Obstetrics & Gynecology, Second Hospital, Jilin University, Changchun 130022, China.
authors.forename: Ruiqi
authors.initials: R
authors.lastname: Yang
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Jialing
authors.initials: J
authors.lastname: Zhang
authors.forename: Chonglei
authors.initials: C
authors.lastname: Zhu
authors.affiliation: Email: fanlimei1971@126.com.
authors.forename: Limei
authors.initials: L
authors.lastname: Fan
mesh_terms: D002421:Caudate Nucleus; D003342:Corpus Striatum; D005260:Female; D005333:Fetus; D005865:Gestational Age; D006257:Head; D006801:Humans; D016014:Linear Models; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012016:Reference Values; D013788:Thalamus; D016216:Ultrasonography, Prenatal