Third ventricle: size and appearance in normal fetuses through gestation
| العنوان: | Third ventricle: size and appearance in normal fetuses through gestation |
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| المؤلفون: | Barbara S. Hertzberg, David M. DeLong, James D. Bowie, Mark A. Kliewer, P J McNally, Kelly S. Freed, Helen H. Kay |
| المصدر: | Radiology. 203:641-644 |
| بيانات النشر: | Radiological Society of North America (RSNA), 1997. |
| سنة النشر: | 1997 |
| مصطلحات موضوعية: | Pregnancy Trimester, Third, Lumen (anatomy), Gestational Age, Budd-Chiari Syndrome, Ultrasonography, Prenatal, Cerebral Ventricles, Corpus Callosum, Embryonic and Fetal Development, Thalamus, Pregnancy, medicine, Humans, Abnormalities, Multiple, Radiology, Nuclear Medicine and imaging, Prospective Studies, Encephalocele, Observer Variation, Fetus, Third ventricle, business.industry, Gestational age, Echogenicity, Anatomy, Fetal Diseases, medicine.anatomical_structure, Ventricle, In utero, Pregnancy Trimester, Second, Gestation, Female, Agenesis of Corpus Callosum, business |
| الوصف: | To define the size and appearance of the normal fetal third ventricle.The third ventricle was prospectively assessed in 441 consecutive normal second- and third-trimester fetuses. The fetuses were divided into six gestational age ranges. Data regarding the size and configuration of the third ventricle were analyzed for each group.The third ventricle was seen in 435 of 440 (98.9%) fetuses. It appeared as a single echogenic line between the thalami in 171 (38.9%) fetuses, as parallel echogenic lines outlining a fluid-filled lumen in 243 (55.2%) fetuses, and as divergent lines delineating a V-shaped fluid-filled structure in 21 (4.8%) fetuses. The single-line configuration was most common early in the second trimester. Later in pregnancy, the ventricle walls could be discerned as separate parallel or divergent lines outlining a fluid-filled lumen. The average width of the ventricle was relatively constant at approximately 1 mm from 12 to 28 weeks. After this time, it enlarged, reaching a maximum 1.9 mm.The third ventricle can be imaged in most second- and third-trimester fetuses. Its size and configuration evolve through the second and third trimesters. This evolution must be considered in the evaluation of normality. At any gestational age, a third ventricle greater than 3.5 mm in width should be viewed with concern for abnormality. |
| تدمد: | 1527-1315 0033-8419 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df46c77e542d8a106cba5d9de70cbe8c https://doi.org/10.1148/radiology.203.3.9169682 |
| رقم الأكسشن: | edsair.doi.dedup.....df46c77e542d8a106cba5d9de70cbe8c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15271315 00338419 |
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