scholarly journals Three-dimensional/Four-dimensional Sonography moved Prenatal Diagnosis of Fetal Anomalies from the Second to the First Trimester of Pregnancy

2012 ◽  
Vol 6 (4) ◽  
pp. 376-390
Author(s):  
Ritsuko K Pooh
Keyword(s):  
Prenatal Diagnosis ◽  
New Technology ◽  
Three Dimensional ◽  
First Trimester ◽  
Fetal Anomalies ◽  
Diagnostic Modality ◽  
Functional Development ◽  
Early Embryos ◽  
First Trimester Of Pregnancy

ABSTRACT The introduction of three-dimensional (3D)/four-dimensional (4D) sonography with high-frequency transvaginal transducer has resulted in remarkable progress in ultrasonographic visualization of early embryos and fetuses and development of new fields of 3D sonoembryology. With the proper use of this new diagnostic modality and with experienced examiner, both structural and functional development in the first trimester of gestation can be assessed more objectively and reliable. Indeed, new technology moved embryology from postmortem studies to the in vivo environment. Furthermore, there are good reasons to believe that 3D/4D sonography moved prenatal diagnosis of fetal abnormalities from the second to the first trimester of pregnancy. We will try to illustrate it with the number of convincing figures. How to cite this article Pooh RK, Kurjak A. Three-dimensional/ Four-dimensional Sonography moved Prenatal Diagnosis of Fetal Anomalies from the Second to the First Trimester of Pregnancy. Donald School J Ultrasound Obstet Gynecol 2012;6(4):376-390.

scholarly journals Assessment of fetal malformations in the first trimester of pregnancy by three-dimensional ultrasonography in the rendering mode. Pictorial essay.

2015 ◽  
Vol 17 (1) ◽  
pp. 109 ◽  
Author(s):  
Edward Araujo Junior ◽  
Liliam Cristine Rolo ◽  
Gabriele Tonni ◽  
Sina Haeri ◽  
Rodrigo Ruano
Keyword(s):  
Prenatal Diagnosis ◽  
Three Dimensional ◽  
First Trimester ◽  
Abdominal Wall Defects ◽  
Skeletal Dysplasias ◽  
Facial Clefts ◽  
Pictorial Essay ◽  
Fetal Malformations ◽  
First Trimester Of Pregnancy ◽  
Fetal Muscle

We present our experience in the contribution of three-dimensional ultrasonography, using the rendering mode, to the prenatal diagnosis of congenital anomalies including neurological defects (acrania/anencephaly, encephalocele, holoprosencephaly), facial anomalies (cyclopia and facial clefts), abdominal wall defects (omphalocele and gastroschisis) and defects of extremities (fetal muscle-skeletal dysplasias). Three-dimensional ultrasonography may contribute to improve the prenatal diagnosis with further revision of the fetal images, allowing a better prenatal counsel to the parents.

scholarly journals Three-dimensional Ultrasound in Detection of Fetal Anomalies

2016 ◽  
Vol 10 (3) ◽  
pp. 214-234 ◽  
Author(s):  
Ritsuko K Pooh
Keyword(s):  
Light Source ◽  
New Technology ◽  
Three Dimensional ◽  
3D Ultrasound ◽  
Fetal Anomalies ◽  
High Definition ◽  
Ultrasound Technique ◽  
Great Achievement ◽  
4D Ultrasound

ABSTRACT In the history of 3D/4D ultrasound technology, the great achievement was high definition (HD) live technology. This technology is a novel ultrasound technique that improves the 3D/4D images. HDlive ultrasound has resulted in remarkable progress in visualization of early embryos and fetuses and in the development of sonoembryology. HDlive uses an adjustable light source and software that calculates the propagation of light through surface structures in relation to the light direction. The virtual light source produces selective illumination, and the respective shadows are created by the structures where the light is reflected. This combination of light and shadows increases depth perception and produces remarkable images that are more natural than those obtained with classic three-dimensional (3D) ultrasound. The virtual light can be placed in the front, back, or lateral sides, where viewing is desired until the best image is achieved. A great advantage is that the soft can be applied to all images stored in the machine's memory. With HDlive ultrasound, both structural and functional developments can be assessed from early pregnancy more objectively and reliably and, indeed, the new technology has moved embryology from postmortem studies to the in vivo environment. Practically, in obstetrical ultrasound, HDlive could be used during all three trimesters of pregnancy. How to cite this article Pooh RK, Kurjak A. Three-dimensional Ultrasound in Detection of Fetal Anomalies. Donald School J Ultrasound Obstet Gynecol 2016;10(3):214-234.

Novel application of three-dimensional HDlive imaging in prenatal diagnosis from the first trimester

2015 ◽  
Vol 43 (2) ◽  
Author(s):  
Ritsuko Kimata Pooh ◽  
Asim Kurjak
Keyword(s):  
Human Development ◽  
New Technology ◽  
Three Dimensional ◽  
First Trimester ◽  
High Definition ◽  
Noninvasive Diagnostics ◽  
Anatomy And Physiology ◽  
Early Human Development ◽  
2D Ultrasound ◽  
Early Human

AbstractRecent development of three-dimensional (3D) high definition (HD) ultrasound has resulted in remarkable progress in visualization of early embryos and fetuses in sonoembryology. The new technology of HDlive assesses both structural and functional developments in the first trimester with greater reliably than two-dimensional (2D) ultrasound. The ability to visualize not only fetal face, hands, fingers, feet, and toes, but also amniotic membranes, is better with volumetric ultrasound than 2D ultrasound. In this article, detailed and comprehensive structures of normal and abnormal fetuses depicted by 3D HDlive are presented, including various faces of Down’s syndrome and holoprosencephaly, as well as low-set ear and finger/toe abnormalities from the first trimester. Three-dimensional HDlive further “humanizes” the fetus, enables detailed observation of the fetal face in the first trimester as shown in this article, and reveals that a small fetus is not more a fetus but a “person” from the first trimester. There has been an immense acceleration in understanding of early human development. The anatomy and physiology of embryonic development is a field where medicine exerts greatest impact on early pregnancy at present, and it opens fascinating aspects of embryonic differentiation. Clinical assessment of those stages of growth relies heavily on 3D/four-dimensional (4D) HDlive, one of the most promising forms of noninvasive diagnostics and embryological phenomena, once matters for textbooks are now routinely recorded with outstanding clarity. New advances deserve the adjective “breathtaking”, including 4D parallel study of the structural and functional early human development.

scholarly journals P02.50: Prenatal diagnosis of body stalk anomaly in the first trimester of pregnancy

2006 ◽  
Vol 28 (4) ◽  
pp. 534-534
Author(s):  
I. Korkontzelos ◽  
A. Tsirka ◽  
P. Tsirkas ◽  
P. Diamantopoulos ◽  
A. Zagaliki ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
First Trimester ◽  
First Trimester Of Pregnancy

scholarly journals Umbilical Cord Entanglement: Diagnostic and Clinical Repercussions

2012 ◽  
Vol 6 (3) ◽  
pp. 225-232 ◽  
Author(s):  
Francisco Raga ◽  
Newton G Osborne ◽  
Luiz E Machado ◽  
Francisco Bonilla ◽  
Fernando Bonilla-Musoles ◽  
...  
Keyword(s):  
Umbilical Cord ◽  
Three Dimensional ◽  
First Trimester ◽  
Delivery Outcome ◽  
Entire Pregnancy ◽  
Pregnancy And Delivery ◽  
First Trimester Of Pregnancy ◽  
3D Ultrasonography ◽  
Umbilical Cord Entanglement

ABSTRACT The use of three-dimensional (3D) ultrasonography since the first trimester of pregnancy allows the diagnosis and follow-up of cord entanglement throughout the entire pregnancy and delivery. This technology permits a more accurate diagnosis when compared with two-dimensional (2D) ultrasonography or Doppler The vast majority of cord entanglements observed at the end of the first-trimester will persist during the entire pregnancy; delivery outcome is usually not affected by this finding except for cases in which multiple cord entanglement is diagnosed. How to cite this article Martínez-Aspas A, Raga F, Machado LE, Bonilla F Jr, Castillo JC, Osborne NG, Bonilla-Musoles F. Umbilical Cord Entanglement: Diagnostic and Clinical Repercussions. Donald School J Ultrasound Obstet Gynecol 2012;6(3):225-232.

Quantitative Analysis of Coronary Atherosclerosis by Intra Vascular Ultrasound

1997 ◽  
Vol 3 (S2) ◽  
pp. 311-312
Author(s):  
D. G. Vince ◽  
R. Shekhar ◽  
R. M. Cothren ◽  
S. E. Nissen ◽  
E. M. Tuzcu ◽  
...  
Keyword(s):  
New Technology ◽  
Three Dimensional ◽  
Plaque Morphology ◽  
Reconstruction Technique ◽  
Human Coronary Artery ◽  
Geometric Information ◽  
Clinical Syndromes ◽  
Artery Disease ◽  
Human Coronary Artery Disease

Traditional methods for studying human coronary artery disease have significant limitations. Angiography allows evaluation only of the geometry of the remaining lumen; it cannot provide information on the structural or cellular composition of the arterial wall, which is essential to understand the processes involved in the progression of atherosclerosis. Intravascular ultrasound (IVUS) imaging is a new technology that permits tomographical visualization of a cross section through the vessel wall (Fig 1 A.) The development and refinement of IVUS has provided a powerful in vivo method to assess plaque morphology. Recent clinical studies have documented its sensitivity in detecting atherosclerosis, and it is increasingly employed to assist in selecting an appropriate therapeutic intervention. Perhaps more importantly, the potential of IVUS to quantify the structure and geometry of normal and atherosclerotic coronary arteries will allow one to characterize specific lesions and to differentiate the plaques that lead to various clinical syndromes. This study presents a three-dimensional (3D) reconstruction technique suitable for clinical use that accurately preserves 3D geometric information throughout the cardiac cycle without requiring mechanical IVUS catheter withdrawal aids.

scholarly journals Prenatal Detection of Fetal Anomalies at the 11- to 13-Week Scan—Part I: Brain, Face and Neck

2013 ◽  
Vol 7 (4) ◽  
pp. 359-368 ◽  
Author(s):  
Tamara Illescas ◽  
Waldo Sepulveda ◽  
Begona Adiego ◽  
Pilar Martinez-Ten
Keyword(s):  
Fetal Brain ◽  
First Trimester ◽  
Nuchal Translucency ◽  
Ultrasound Screening ◽  
Second Trimester ◽  
Fetal Anomalies ◽  
Prenatal Detection ◽  
Ultrasound Findings ◽  
First Trimester Of Pregnancy ◽  
Structural Anomalies

ABSTRACT In the last 20 years, the role of first-trimester ultrasound screening has expanded from individual calculation of the risk of aneuploidy through measurement of the nuchal translucency to a powerful technique to evaluate important aspects of the fetal anatomy. Traditionally, the full anatomy scan for detection of structural anomalies has been performed in the second trimester of pregnancy. However, with the implementation of the first-trimester scan at 11 to 13 weeks of gestation many of the structural anomalies traditionally detected in the second trimester can now be identified earlier in pregnancy. In the first part of this review we discuss the main ultrasound findings that may facilitate the prenatal detection of fetal brain, face and neck abnormalities in the first trimester of pregnancy. How to cite this article Sepulveda W, Illescas T, Adiego B, Martinez-Ten P. Prenatal Detection of Fetal Anomalies at the 11- to 13-Week Scan—Part I: Brain, Face and Neck. Donald School J Ultrasound Obstet Gynecol 2013;7(4):359-368.

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