4,503
edits
Changes
Jump to navigation
Jump to search
Oestrous Cycle - Anatomy & Physiology (view source)
Revision as of 14:27, 10 September 2008
, 14:27, 10 September 2008→Appearance of the Ovaries on Ultrasound
==== Appearance of the Ovaries on Ultrasound ====
==== Appearance of the Ovaries on Ultrasound ====
* Normal structures that can be identified:
** Ovarian stroma: Mottled echotexture
** Antral follicles: Anechoic (black) structures of variable size with a clear definition between the follicular wall and the antral cavity. They will not always be a regular, spherical shape.
** Corpora lutea: Well defined border and a mottled echogenic appearance. They are less echogenic than the ovarian stroma. The fluid-filled lacuna can be identified as a dark, non-echogenic area in the centre.
** Ovarian blood vessels: Black,non echogenic structures which are easily confused with antral follicles. Movevement of the transducer can be used to differentiate the two, as this shows their elongated structure.
* In addition, pathological structures like ovarian cysts can be seen.
==== Ovaries in a Multiparous Cow ====
==== Ovaries in a Multiparous Cow ====