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. 2011 Jan;22(1):53-9.
doi: 10.1007/s00192-010-1233-y. Epub 2010 Aug 11.

Interobserver and interdisciplinary reproducibility of 3D endovaginal ultrasound assessment of pelvic floor anatomy

Giulio Aniello Santoro  1 , Andrzej Paweł Wieczorek, S Abbas Shobeiri, Elizabeth R Mueller, Jacek Pilat, Aleksandra Stankiewicz, Giuseppe Battistella
Affiliations

Interobserver and interdisciplinary reproducibility of 3D endovaginal ultrasound assessment of pelvic floor anatomy

Giulio Aniello Santoro et al. Int Urogynecol J. 2011 Jan.

Abstract

Introduction and hypothesis: the study aims were to evaluate (1) the interobserver and (2) the interdisciplinary repeatability of levator hiatus, urethral thickness, and anorectal angle measurements using three-dimensional endovaginal ultrasound (3D-EVUS).

Methods: twenty-seven nulliparous asymptomatic females were imaged with 3D-EVUS. Analyses were conducted off-line from stored 3D volumes by six readers (two radiologists, two urogynecologists, and two colorectal surgeons) using a standardized technique. Reproducibility was determined using the interclass correlation coefficients (ICC).

Results: the overall interobserver repeatability for levator hiatus dimensions was good to excellent (ICC, 0.655-0.889), for urethral thickness was good (ICC, 0.624), and for anorectal angle was moderate (ICC, 0472). The interdisciplinary repeatability for levator hiatus indices was good to excellent (ICC, 0.639-0.915), for urethral thickness was moderate to good (ICC, 0.565-0.671), and for anorectal angle was fair to moderate (ICC, 0.204-0.434).

Conclusions: 3D-EVUS yields reproducible measurements of levator hiatus dimensions and urethral thickness in asymptomatic nulliparous women.

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