title: Analysis of follicular events in owl monkeys (Aotus azarai infulatus) using B-mode and Doppler ultrasound.
abstract: Ultrasound (B-mode) was used to analyze follicular events in 12 trained female owl monkeys (Aotus azarai infulatus). The animals were examined every 48 hours for over 90 days to measure and map follicular growth in both ovaries and to measure (using Doppler velocimetry) local hemodynamic changes during the peri-ovulatory stage. There were 44 follicular growth events, each with two or three follicular waves, and a mean ± SEM interval between events of 17 ± 1.13 days. There were various hemodynamic changes during follicular growth; both vascular resistance index and pulsatility index decreased during the time when the follicle diameter peaked. Thus, both B-mode and Doppler ultrasound were useful for monitoring ovarian follicular events in owl monkeys.
authors.affiliation: State University of São Paulo Júlio de Mesquita Filho (Universidade Estadual Paulista-UNESP), School of Agriculture and Veterinary Sciences (Faculdade de Ciências Agrárias e Veterinárias-FCAV), Jaboticabal, SP, Brazil. lnassarc@hotmail.com
authors.forename: L N
authors.initials: LN
authors.lastname: Coutinho
authors.forename: M B S
authors.initials: MB
authors.lastname: de Brito
authors.forename: F O B
authors.initials: FO
authors.lastname: Monteiro
authors.forename: R S
authors.initials: RS
authors.lastname: de Andrade
authors.forename: M E B
authors.initials: ME
authors.lastname: da Conceição
authors.forename: M R
authors.initials: MR
authors.lastname: Feliciano
authors.forename: P H G
authors.initials: PH
authors.lastname: de Castro
authors.forename: P P M
authors.initials: PP
authors.lastname: Teixeira
authors.forename: W R R
authors.initials: WR
authors.lastname: Vicente
mesh_terms: D000818:Animals; D016645:Aotidae / Q000033:anatomy & histology / Q000502:physiology*; D001783:Blood Flow Velocity; D005260:Female; D007083:Iliac Artery / Q000000981:diagnostic imaging; D006080:Ovarian Follicle / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000502:physiology*; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000502:physiology*; D018608:Ultrasonography, Doppler / Q000662:veterinary; D014599:Uterus / Q000098:blood supply / Q000000981:diagnostic imaging / Q000502:physiology