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- W2386969844 abstract "Objective To assess the relationship between pelvic organ descent and hiatus area on Valsalva maneuver by observing the urogenital hiatus in nulliparous women with three-dimensional(3D)transperineal ultrasound. Methods Sixtyfive nulliparous women(aged 20 ~36 years) were examined by 3D transperineal ultrasound. Urogenital hiatus volumes were acquired at rest and on Valsalva maneuver,and the mean thickness of puborectalis(Tm-PR),anteroposterior diameter(AP),left to right diameter(LR),the area of urogenital hiatus(HA)and the distance between pelvic organs and inferior margin of pubic symphysis were measured off-line. Results ①Tm-PR varied 0.58~1.15 cm[mean(0.89±0.13)cm] at rest,and 0.56~1.11 cm [mean(0.76±0.11)cm]on Valsalva maneuver. The AP,LR and HA varied 3.31~5.31 cm[mean(4.56±0.54)cm],3.03~4.29 cm [mean(3.62±0.36)cm],7.16~15.64 cm2[mean(12.59±2.77)cm2]at rest. During the maximum Valsalva maneuver,AP,LR and HA varied 3.62~6.40 cm[mean(5.25±0.89)cm],3.32~4.77 cm[mean(3.92±0.45)cm],7.40~28.51 cm2[mean(15.70±4.68)cm2]. ②AP,LR and HA were increased and Tm-PR was decreased during the maximum Valsalva maneuver as compared to rest condition(P0.05). ③There were significant correlations between descent of bladder neck,cervix,rectum ampulla and HA on Valsalva maneuver,correlation coefficient was 0.682,0.484,0.487,respectively(P 0.05). Conclusion There is significant correlation between pelvic organ descent and HA on Valsalva maneuver. Parameters of the urogenital hiatus can be determined by 3D ultrasound repeatly and reliably,and 3D ultrasound is a new effective image technology to observe the pelvic floor structures." @default.
- W2386969844 created "2016-06-24" @default.
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- W2386969844 date "2014-01-01" @default.
- W2386969844 modified "2023-09-23" @default.
- W2386969844 title "Observation of urogenital hiatus in nulliparas by transperineal three-dimensional ultrasound" @default.
- W2386969844 hasPublicationYear "2014" @default.
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