Radiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Baumeister, L. A.
Right arrow Articles by Bowie, J. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Baumeister, L. A.
Right arrow Articles by Bowie, J. D.

Radiology, Vol 192, 333-336, Copyright © 1994 by Radiological Society of North America

ARTICLES

Fetal fourth ventricle: US appearance and frequency of depiction

LA Baumeister, BS Hertzberg, PJ McNally, MA Kliewer and JD Bowie
Department of Radiology, Duke University Medical Center, Durham, NC 27710.

PURPOSE: To define the normal appearance of the fetal fourth ventricle throughout gestation and ascertain an expected frequency of depiction at different gestational ages. MATERIALS AND METHODS: Three hundred ten consecutive second- and third-trimester fetuses were studied with ultrasound. The posterior fossa was examined to document the size and appearance of the fourth ventricle. RESULTS: The fourth ventricle was seen in 221 of the 310 fetuses (71.3%) and was most consistently demonstrated in the middle of the second trimester. At this stage of gestation, the fourth ventricle was almost always seen when the anatomic features of the posterior fossa were identified. The mean anteroposterior dimension of the fourth ventricle was 3.5 mm +/- 1.3 (standard deviation), and the mean width was 3.9 mm +/- 1.7. CONCLUSION: The fetal fourth ventricle can be seen in most fetuses beginning in the middle of the second trimester and increases in size with advancing gestation. It can be difficult to depict before the middle of the second trimester and late in the third trimester.


This article has been cited by other articles:


Home page
 J Ultrasound MedHome page
I. Goldstein, I. R. Makhoul, A. Tamir, B.-S. Rajamim, and D. Nisman
Ultrasonographic Nomograms of the Fetal Fourth Ventricle: Additional Tool for Detecting Abnormalities of the Posterior Fossa
J. Ultrasound Med., August 1, 2002; 21(8): 849 - 856.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
RADIOLOGY RADIOGRAPHICS RSNA JOURNALS ONLINE
Copyright © 1994 by the Radiological Society of North America.