Qualitative evaluation of Crystal Vue rendering technology in assessment of fetal lip and palate

Ultrasound imaging of the fetal secondary palate: Methodological description of a two‐dimensional approach and a case series

“…The early work by Campbell and Lees introducing the “reverse face” view was followed by other authors suggesting different 3D US approaches. Among them are the “flipped face” view, “anterior axial” view, “angled insonation,” SROP, and the “Crystal Vue” techniques. One cannot overemphasize the fact that in 3D US, regardless of the post‐processing methods, in order to create an image of the palate, the involved voxels must be shadow free during the initial acquisition of the volumetric dataset, otherwise, they cannot contribute to the final image, regardless of the rotational maneuvers or image processing algorithms.…”

Artifacts in 3D rendering: secondary palate concealed in acoustic shadow and use of edge‐detection filters

“…Thus, in figures a and b in Dall'Asta et al . 's original paper, the secondary palate is not depicted; the label ‘Secondary palate (1)’ in this image is not misplaced accidentally, but is placed erroneously on other ‘reconstructed’ suprapalatal structures of the future nasal septum and base of the skull, e.g. parts of the ethmoid, sphenoid and vomer bones.…”

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“…Midsagittal rendered views of fetal palate showing different attitude of fetal mouth. In (a) (presented as figure d by Tutschek and Blaas), mouth is closed, whereas in (b) (originally presented in Dall'Asta et al …”

“…Multiplanar view of index volume: coronal plane (a) and sagittal plane (b), showing secondary palate with midpalate shadowing (arrow); (c) axial plane, showing secondary palate (arrows) along with interpalatal fissure (). Originally presented in Dall'Asta et al …”