The 'early CSP' is not a CSP: 3D transvaginal neurosonographic study of fetal cavum septi pellucidi formation and septal development.
OBJECTIVES To describe the in-vivo development of the fetal cavum septi pellucidi (CSP) using transvaginal ultrasonography (TVS) and to propose a hypothesis underlying non-visualization of the septum pellucidum (NVSP). METHODS In this retrospective study, three-dimensional ultrasound volumes of the fetal brain acquir...