Intra- and inter-observer variability of 2D and 3D transvaginal sonography in the diagnosis of benign versus malignant adnexal masses.

Maria A Pascual (1) , Betlem Graupera (1) , Lourdes Hereter (1) , Anna Rotili (1) , Ignacio Rodriguez (2) , Juan Luis Alcazar (3)

1 Department Obstetrics, Gynecology and Reproduction
2 Department Obstetrics, Gynecology and Reproduction
3 Department of Obstetrics and Gynecology

Objective: The purpose of this study was to compare the intra-observer and inter-observer agreement in assigning a diagnosis of malignancy or benignity to adnexal masses using 2-dimensional ultrasonography (2D US) and 3-dimensional ultrasonography (3D US). Methods: Two experienced observers (Observers A and B) performed a retrospective review of digitally stored 2D images and 3D data from a sample of 41 consecutive patients with a diagnosis of adnexal mass. Each observer independently, and blinded each other, evaluated the 2D static images of each adnexal mass and then the 3D volumes one-week later. The observers were required to classify the adnexal lesion as benign or malignant according to pattern recognition analysis. Intra-observer and inter-observer agreement were assessed by calculating the kappa index (κ). Results: Intra-observer agreement between 2DUS and 3DUS for the observer A was 1.00 and for the observer B was 0.69. Inter-observer agreement was 0.69 for 2D US and 1.00 for 3D US (p >0.05) Conclusions: Our results indicate that 3D US for assessing adnexal masses is reproducible, but not significantly, than 2D US.

Mots clés: Medicine

Maria A Pascual, Betlem Graupera, Lourdes Hereter, Anna Rotili, Ignacio Rodriguez, et al.. Intra- and inter-observer variability of 2D and 3D transvaginal sonography in the diagnosis of benign versus malignant adnexal masses.. Journal of Clinical Ultrasound, 2011, 39 (6), pp.316. ⟨10.1002/jcu.20808⟩. ⟨hal-00632730⟩