Fig. 4From: The role of diagnostic hysteroscopy in diagnosis of incomplete uterine septum in patients with recurrent pregnancy loss in the era of transvaginal 3D ultrasound scana How the IILFM was calculated on TV 3D US by measuring the distance from the midpoint of the line joining the internal tubal ostia and the central point of indentation in a patient with a PSUOA. b The corresponding hysteroscopic appearance of the uterine fundus of the patient with PSUOA whose TV 3D US is illustrated in aBack to article page