Header

UZH-Logo

Maintenance Infos

Sonographische Untersuchungen an Plazenta, Uteruswand und fetalen Hüllen des Rindes


Peterson, Susanne. Sonographische Untersuchungen an Plazenta, Uteruswand und fetalen Hüllen des Rindes. 2012, University of Zurich, Vetsuisse Faculty.

Abstract

The objective of this study was to describe the sonographic anatomy of the placenta and to determine its in vivo development during normal pregnancy in cows. All examinations were performed transrectally using an 8 MHz linear transducer. Thickness and appearance of the endometrium, myometrium and myometrium below the placentomes, length and width of placentomes as well as of the stalks of placentomes and their shape, the distance between the tip of stalk of placentomes and the farthest point of the placentome and the thickness of the hyper-echodense border of the placentomes were assessed in different areas of the uterus: close to the cervix, close to the uterine corpus, in the region of the horn and close to the tip of the pregnant and non-pregnant uterine horn. The size of placentomes increased steadily until week 27 of gestation followed by a slight increase until week 31 of gestation and stagnated afterwards through term with reaching a plateau in the growth curve. In the non-pregnant horn smaller placentomes were found compared to the pregnant horn. Placentomes in the area of the tip of the pregnant horn were smaller than those in the area of the horn, corpus or close to the cervix. The hyper-echodense borders of the placentomes, the endometrium and myometrium showed no alterations throughout pregnancy. Ultrasonographic monitoring of pregnancies, especially examinations of placentae may be a valuable diagnostic tool to assess bovine placentae.

Abstract

The objective of this study was to describe the sonographic anatomy of the placenta and to determine its in vivo development during normal pregnancy in cows. All examinations were performed transrectally using an 8 MHz linear transducer. Thickness and appearance of the endometrium, myometrium and myometrium below the placentomes, length and width of placentomes as well as of the stalks of placentomes and their shape, the distance between the tip of stalk of placentomes and the farthest point of the placentome and the thickness of the hyper-echodense border of the placentomes were assessed in different areas of the uterus: close to the cervix, close to the uterine corpus, in the region of the horn and close to the tip of the pregnant and non-pregnant uterine horn. The size of placentomes increased steadily until week 27 of gestation followed by a slight increase until week 31 of gestation and stagnated afterwards through term with reaching a plateau in the growth curve. In the non-pregnant horn smaller placentomes were found compared to the pregnant horn. Placentomes in the area of the tip of the pregnant horn were smaller than those in the area of the horn, corpus or close to the cervix. The hyper-echodense borders of the placentomes, the endometrium and myometrium showed no alterations throughout pregnancy. Ultrasonographic monitoring of pregnancies, especially examinations of placentae may be a valuable diagnostic tool to assess bovine placentae.

Statistics

Downloads

159 downloads since deposited on 30 Apr 2019
155 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Dissertation (monographical)
Referees:Bleul Ulrich, Boos Alois
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Anatomy
05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals
UZH Dissertations
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Uncontrolled Keywords:Ultrasonography, Veterinary, Cattle, Placenta, Anatomy & Histology, Placenta
Language:German
Place of Publication:Zürich
Date:2012
Deposited On:30 Apr 2019 15:26
Last Modified:07 Apr 2020 07:17
Number of Pages:170
OA Status:Green
Related URLs:https://www.recherche-portal.ch/primo-explore/fulldisplay?docid=ebi01_prod007608783&context=L&vid=ZAD&search_scope=default_scope&tab=default_tab&lang=de_DE (Library Catalogue)

Download

Green Open Access

Download PDF  'Sonographische Untersuchungen an Plazenta, Uteruswand und fetalen Hüllen des Rindes'.
Preview
Content: Published Version
Language: German
Filetype: PDF
Size: 7MB