Antenatal three-dimensional sonographic features of placental shelf

Abnormal ultrasound appearance of the amniotic membranes – diagnostic and significance: a pictorial essay

“…In this situation, the arterial flow confirmed the presence of maternal tissue in the sheet [17]. There have been numerous reports on the antenatal diagnosis of circumvallate placenta using two-dimensional (2D) and three-dimensional ultrasound [16,18,19].…”

“…It is a tissue contiguous with the edge of the placenta, protruding into the uterine cavity. It has the same echogenicity with the placenta and has no connections to any fetal parts ( fig 5) [16,17]. …”

Three-dimensional ultrasonography by means of HDlive rendering in the first trimester of pregnancy: A pictorial review

“…HDlive may be superior to normal 2D ultrasound in the characterization of a chorionic bump, which is an irregular convex bulge passing from the choriodecidual surface into the first-trimester gestational sac. A chorionic bump may clinically represent a warning sign when detected in the first trimester scan as women with such an ultrasound marker have almost double the risk of miscarriages compared with controls (15,21,22). A cystic hygroma is highly defined using this lightening technique as can be seen in Figure 6.…”

HDlive for Assessment of Placenta and Umbilical Cord

“…26 There have been only two reports of the antenatal detection of a placental shelf using conventional 3D ultrasound. 26,27 HDlive provides new, realistic sensations for the diagnosis of a placental shelf, and a near-fetoscopic image of it can be obtained by employing HDlive (Figs 14A and B).…”