| Development of the human fetal pons: in utero ultrasonographic study. | |
| | |
MedLine Citation:
|
PMID: 15459939 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
OBJECTIVES: To examine the ultrasonographic feasibility of imaging the fetal pons and to construct a reference chart for its normal development during gestation. METHODS: A cross-sectional, prospective study on 293 healthy fetuses of low-risk pregnancies between 19 and 34 weeks was performed. The transfontanel approach, via the abdominal or vaginal routes, was used to evaluate the fetal metencephalon (pons and cerebellum). The anteroposterior diameter of the fetal pons was measured in a mid-sagittal plane. The longitudinal diameter of the cerebellar vermis was measured at the same plane and the vermis-pons ratio (VPR) was established. RESULTS: One hundred and forty-four fetuses were in vertex position. In 140 (97.2%) satisfactory visualization and measurements of the pons and cerebellar vermis were obtained. One hundred and forty-nine fetuses were breech presentations and measurements were successfully performed in 147 (98.6%). The pons anteroposterior and vermis longitudinal diameters showed a linear correlation with gestational age (GA) (r = 0.95 for both measurements; P < 0.001). The mean VPR was 1.5 (+/-0.1 SD) and did not change in the gestational interval that was considered. CONCLUSION: By using the transfontanel approach, evaluation of the fetal pons is feasible via the mid-sagittal plane. The nomograms developed and the ratio to fetal vermis provides reference data that may be helpful when evaluating anomalies of the brainstem. |
| | |
Authors:
|
R Achiron; Z Kivilevitch; S Lipitz; R Gamzu; B Almog; Y Zalel |
Related Documents
:
|
9773399 - Low-density lipoprotein particle size decreases during normal pregnancy in association ... 16308899 - Analysis of z-score distribution for the quality control of fetal ultrasound measuremen... 3658279 - Maternal and fetal factors affecting success of antepartum external cephalic version. 18041409 - Fetal biometry charts for normal pregnant women in northeastern thailand. 2653039 - Estimation of birth weight by use of ultrasonographic formulas targeted to large-, appr... 17697069 - Intrauterine growth standards in a developing country: a study of singleton livebirths ... 22526449 - Kidney injury during pregnancy: associated comorbid conditions and outcomes. 20345979 - Mitigation of septic shock in mice and rhesus monkeys by human chorionic gonadotrophin-... 2187349 - Benefits of placental biopsies for rapid karyotyping in the second and third trimesters... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology Volume: 24 ISSN: 0960-7692 ISO Abbreviation: Ultrasound Obstet Gynecol Publication Date: 2004 Oct |
Date Detail:
|
Created Date: 2004-10-07 Completed Date: 2005-04-11 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9108340 Medline TA: Ultrasound Obstet Gynecol Country: England |
Other Details:
|
Languages: eng Pagination: 506-10 Citation Subset: IM |
Affiliation:
|
Ultrasound Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center, Tel Hashomer and Sackler School of Medicine, Israel. rachiron@post.tau.ac.il |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Cross-Sectional Studies Feasibility Studies Female Gestational Age Humans Pons / embryology*, ultrasonography Pregnancy Prospective Studies Reference Standards Sensitivity and Specificity Ultrasonography, Prenatal / standards* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Audit on nuchal translucency thickness measurements in Flanders, Belgium: a plea for methodological ...
Next Document: Which infertile women should be indicated for sonohysterography?