In each case, the uterine cavity was evaluated using 3D ultrasound and hysteroscopy. An arcuate uterus was identified as an indentation between 0.4 and 1 cm into the uterine cavity.

The presence of an arcuate uterus, ... A 2D ultrasound may raise the suspicion. 3D ultrasound, saline sonohysterogram, or hysterosalpingogram could further aid the proper diagnosis.

Arcuate uterus: here, ... such as a hysterosalpingogram or scanning with ultrasound or MRI. 3D coronal transvaginal imaging is the most accurate means of ultrasound diagnosis, ...