research-article | 31-December-2019
ultrasound evaluation in labour. They include slow progress or arrest of labour, suspected foetal head malpresentation, or the need to ascertain foetal head position and station before considering or performing instrumental vaginal delivery. Among multiple parameters, the Practice Guidelines highlight the special role of the angle of progression (AoP), head–perineum distance (HPD), head direction (HD) and midline angle (MLA).
The angle of progression (AoP), also referred to as the angle of descent, is
Anna Maria Śladowska-Zwolińska
Journal of Ultrasonography, Volume 19 , ISSUE 79, 295–301
Editorial | 13-September-2016
Journal of Ultrasonography, Volume 15 , ISSUE 61, 125–136