Three-dimensional ultrasound demonstration of the fetal palate in high-risk patients: the accuracy of prenatal visualization (original) (raw)
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Ultrasound antenatal diagnosis of cleft palate by a new technique: the 3D ?reverse face? view
Ultrasound in Obstetrics and Gynecology, 2005
Objective To assess the clinical value of a novel threedimensional (3D) ultrasound technique, the reverse face view (3D RF view), in the antenatal categorization of facial clefting and in particular clefting of the hard palate. Methods Eight cases of suspected orofacial clefting were examined by 3D surface rendering. The fetal lips and alveolar ridge were examined in the frontal plane and the face was then rotated through 180 • on the vertical axis to examine the secondary palate by the 3D RF view. Results In each case described, we were able to visualize the fetal face, lips and palate and make an antenatal diagnosis as to whether the palate was affected. In all cases, the antenatal diagnosis was subsequently confirmed. In one case with a left-sided cleft in the lips and alveolar ridge and an intact hard palate, the correct diagnosis was made but a cleft in the soft palate was missed. Conclusion Although clefts of the lips and alveolar ridge are readily diagnosed on high-quality antenatal ultrasound, visualization of the fetal palate using existing techniques is unreliable. In the patients described here, the 3D RF technique allowed relatively straightforward assessment of the fetal palate with a high degree of accuracy.
Surgical and Radiologic Anatomy, 2007
Objective The objective of this case report is to evaluate the faculty of a recently described original three-dimensional ultrasound technique to detect pathological processes of the fetal palate. Method The palate of the fetus of a patient with a personal history of isolated incomplete cleft palate is evaluated by three-dimensional ultrasound at 34 weeks of gestation. The postnatal Wndings are compared to the prenatal investigation. Result The used three-dimensional ultrasound technique provides selective visualization of the total hard palate which permits the prenatal diagnosis and multidisciplinary approach of an incomplete cleft palate. Conclusion These prenatal Wndings might encourage further studies to conWrm the value of this recently described innovative technique in the diagnosis and surgical prenatal counselling of fetal cleft palate.
Ultrasound in Obstetrics & Gynecology, 2011
K E Y W O R D S: cleft lip and palate; diagnostic test; prenatal diagnosis; three-dimensional ultrasound ABSTRACT Objective To investigate the accuracy of prenatal axial three-dimensional (3D) ultrasound in predicting the absence or presence of cleft palate in the presence of cleft lip. were 81 cases with a prenatal two-dimensional (2D) ultrasound screening diagnosis of unilateral or bilateral cleft lip at 22-25 weeks of gestation referred to our tertiary care center. Of these, 79 fetuses were included in this prospective study and two were excluded. Axial 3D ultrasound imaging of the fetal palate was performed and the diagnoses were compared with clinical findings at delivery. The frequencies of intact and cleft palate, the degree of association between the prenatal predictions and postnatal findings and the probability of detection of cleft lip and palate were determined.
Sonographic assessment of normal fetal palate using three‐dimensional imaging: a new technique
Ultrasound in Obstetrics & Gynecology, 2007
ObjectivesThe aim of this study was to describe a novel three‐dimensional (3D) ultrasound rendering technique to examine the normal fetal posterior palate and to assess its correspondence with the real fetal anatomy.MethodsA prospective longitudinal study was conducted from January to October 2005 and included 100 fetuses in a low‐risk population. Fetal ultrasound examinations were performed at 17, 22, 27 and 32 weeks' gestation to determine the normal 3D ultrasound view of the fetal palate at different gestational ages. The ultrasound scans were performed using the strict anterior axial plane of the starting reconstruction volume and the underside 3D view of the fetal palate. The 3D view of the fetal palate was compared with the normal anatomical view of the fetal palate obtained by surgical fetopathological examination of fetuses at the same gestational ages. The sonographic visualization rates of seven defined anatomical landmarks of the fetal palate were computed for each ge...
Ultrasound in Obstetrics and Gynecology, 2010
Objectives To systematically review the diagnostic accuracy of second-trimester transabdominal ultrasound in detecting orofacial clefts in low-and high-risk populations and to compare two-dimensional (2D) with three-dimensional (3D) ultrasound techniques. Methods MEDLINE and EMBASE were searched for articles published in English, Dutch, French or German using the keywords 'cleft' and 'ultrasound' or 'screening' or 'sonogram' and 'prenatal' or 'antenatal' or 'fetus' to identify cohort studies and randomized trials in order to assess the detection rate by prenatal ultrasound of cleft lip and palate in high-risk and low-risk pregnant women. Results Of 451 citations identified, 27 met the criteria for the systematic review, 21 involving unselected lowrisk populations and six involving high-risk populations. In the selected studies there was diversity in the gestational age at which the ultrasound examination was performed and there was considerable variety in the diagnostic accuracy of 2D ultrasound in the low-risk women, with prenatal detection rates ranging from 9% to 100% for cleft lip with or without cleft palate, 0% to 22% for cleft palate only and 0% to 73% for all types of cleft. 3D ultrasound in high-risk women resulted in a detection rate of 100% for cleft lip, 86% to 90% for cleft lip with palate and 0% to 89% for cleft palate only. Conclusions 2D ultrasound screening for cleft lip and palate in a low-risk population has a relatively low detection rate but is associated with few false-positive results. 3D ultrasound can achieve a reliable diagnosis, but not of cleft palate only.
Analysis of Fetal Palate to Assist Pre-natal Ultrasound
JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, 2016
Introduction: Cleft palate is one of the major facial congenital malformation in newborns. Pre-natal detection of this malformation is limited to detection of clefting of hard palate but isolated soft palate clefting still remains challenge for sonologists. As Indian literature is limited present study was attempted to provide dimensions and position of fetal palate by digitized images. Aim: To study dimensions, position and differences in parameters between second and third trimester fetuses.
Ultrasound in Obstetrics & Gynecology, 2008
ObjectivesTo describe a three‐dimensional (3D) ultrasound technique for assessing the fetal soft palate.MethodsA prospective study conducted from April to December 2006 included 87 fetuses in a low‐risk population. Fetal ultrasound scans were performed between 21 and 25 weeks of gestation to determine the normal 3D ultrasound view of the fetal soft tissues of the palate. The sonographers used a 30°‐inclined axial 3D view of the fetal palate. Ultrasound images obtained in this view were compared with fetopathological specimens of the same gestational age by two observers, both pediatric surgeons. Each observer indicated whether they thought that the uvula or the velum could be detected, and the differences in responses between the observers were assessed.ResultsThe frequencies of detection of the uvula and velum of each observer varied between 80% and 90%. The observers showed a significant difference in judging the visualization of the uvula, but not in judging the velum.Conclusions...
Analysis of fetal palate as a tool in prenatal ultrasound examination
Romanian Journal of Stomatology
Prenatal ultrasound examination should take place between 18 and 20 week of gestation and is important for early detection of fetal anomalies such as the facial malformations. One important anatomic element is the palate that raises echographic technical difficulties such as the shadowing by facial bones and, especially, by the superior alveolar ridge, the fetal prone position and its localization, respectively, profoundly, inside of fetal head or anatomic obstacles such as the fetal tongue, so new echographic examination techniques are being under evaluation. The prenatal detection rate of fetal cleft palate remains low, so various methods of examination are being proposed. The ultrasound assessment of the fetal face is made by 2D ultrasound, technique completed by 3D ultrasound, which includes the evaluation in both axial and coronal planes, with the uvula being analyzed in two types of section, transversal and sagittal. In the latter to epiglottis is a landmark that confirms the ...