Three‐dimensional ultrasound in the evaluation of fetal anomalies

Dyson, R. L.; Pretorius, Dolores H.; Budorick, Nancy E.; Johnson, Donna; Sklansky, Mark; Cantrell, Cathy Jo; Lai, Shih-Ting; Nelson, Thomas R.

doi:10.1046/j.1469-0705.2000.00183.x

Cited by 115 publications

(81 citation statements)

References 23 publications

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“…Three-dimensional ultrasonography was thought to be "most helpful" for localizing bony defects in 10 fetuses with spina bifida. 9 One of their cases involved a spinal defect that could not be imaged by 2DUS because of fetal position. The precise level of the defect was determined by endovaginal 3DUS by allowing reconstruction of appropriate planar images from volume data.…”

mentioning

confidence: 99%

“…Several investigators have also suggested that three-dimensional ultrasonography (3DUS) can be used to evaluate this condition. [6][7][8][9][10] Johnson and coworkers 8 have already described the use of rendered spine images as a reference for position on threedimensional (3D) multiplanar views. Only 5 of their cases, however, compared prenatal findings with the vertebral defect level after delivery.…”

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confidence: 99%

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A Diagnostic Approach for the Evaluation of Spina Bifida by Three-dimensional Ultrasonography

Lee

Chaiworapongsa

Romero

et al. 2002

Journal of Ultrasound in Medicine

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Objective. To describe a prenatal diagnostic method for evaluating spina bifida by three‐dimensional ultrasonography. Methods. Two‐ and three‐dimensional ultrasonography were used to determine the extent of vertebral defects among fetuses with spina bifida. Spinal levels were independently counted from the most caudal thoracic vertebra with a rib (e.g., 12th thoracic rib). A virtual cutting plane was manipulated through a volume‐rendered spine to generate optimal multiplanar views for this blinded analysis. Prenatal diagnosis was compared with a postnatal analysis of bony spine defects derived from radiographic films or magnetic resonance imaging. Results. Nine fetuses were examined by two‐dimensional ultrasonography (21.8 ± 3.4 menstrual weeks) and three‐dimensional ultrasonography (22.8 ± 4.4 menstrual weeks). For two‐dimensional ultrasonography, the spinal level agreed to within 1 vertebral segment in 6 of 9 infants. In contrast, three‐dimensional ultrasonography agreed to within 1 vertebral segment in 8 of 9 infants. Three fetuses had vertebral defect levels on two‐dimensional ultrasonography that were 1.5 to 2 segments away from postnatal findings. The same fetuses had results that were within 1 vertebral segment on three‐dimensional ultrasonography. Volume rendering showed splayed vertebral pedicles and disrupted vertebrae. An intact meningeal sac was easily rendered in 5 of 9 subjects. Conclusions. Multiplanar views are generally more informative than rendered views for localizing bony defects of the fetal spine. The level of the defect on three‐dimensional ultrasonography correlates well with those on two‐dimensional ultrasonography and postnatal imaging studies. This approach may improve characterization of spina bifida by adding diagnostic information that is complementary to the initial assessment by two‐dimensional ultrasonography.

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confidence: 99%

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confidence: 99%

A Diagnostic Approach for the Evaluation of Spina Bifida by Three-dimensional Ultrasonography

Lee

Chaiworapongsa

Romero

et al. 2002

Journal of Ultrasound in Medicine

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“…Dyson et al 8 described the clinical impact of 3-dimensional (3D) sonographic imaging of fetal anomalies compared with conventional 2-dimensional (2D) sonography and concluded that 3D sonography was superior to 2D sonography by providing more comprehensive images of congenital anomalies. In many recent studies, 3D sonography consistently displayed facial anomalies with greater accuracy and clarity than 2D sonography.…”

Section: Discussionmentioning

confidence: 98%

Prenatal diagnosis of holoprosencephaly with ethmocephaly via 3-dimensional sonography

Lee¹,

Hur²,

Shin³

et al. 2006

J. Clin. Ultrasound

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We present the prenatal 3-dimensional (3D) sonographic findings in a case of holoprosencephaly with ethmocephaly at 32 weeks' gestation. The sonographic diagnosis was based on the intracranial findings of a single ventricle and bulb-shaped appearance of the thalami and facial abnormalities, including hypotelorism with proboscis. Chromosome study of the fetus revealed a normal female karyotype (46,XX). Postmortem examination confirmed the 3D sonographic findings. This case demonstrates that the use of 3D sonography improves the imaging and the understanding of the condition of the intracranial abnormalities and the facial anomalies.

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“…Several studies reported on the technical and clinical advantages afforded by 3D sonography in obstetric imaging. [12][13][14] Despite these obvious advantages of volume sonography, this modality has not yet attained wide acceptance in obstetric imaging. A major hurdle limiting the wide applicability of 3D sonography in clinical practice is its steep learning curve.…”

Section: Discussionmentioning

confidence: 99%

Automated Sonography

Abuhamad

Falkensammer

Zhao

2007

Journal of Ultrasound in Medicine

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Objective. This study defines the spatial relationship of the diagnostic planes of the fetal heart to the 4-chamber view plane in the second trimester of pregnancy as a first step in the automation process. Methods. Three-dimensional static volumes of the fetal chest were acquired at the level of the 4-chamber view on 75 fetuses between 18 and 23 weeks' gestation. The spatial relationship of the diagnostic cardiac planes to the 4-chamber view plane were determined for each gestational week by using rotations along the x-, y-, and z-axes and a parallel slide (millimeters) when applicable. Results. The 5-chamber view (cardiac 1 plane) was best obtained by an initial parallel slide of the reference plane (plane A) toward the fetal head followed by a rotation along the y-axis. The right ventricular outflow tract (cardiac 2) and the abdominal circumference (cardiac 3) planes were best obtained by a parallel slide only: toward the fetal head in cardiac 2 and toward the fetal abdomen in cardiac 3. Conclusions. This study shows the spatial relationship of fetal cardiac diagnostic planes to the 4-chamber view plane in the second trimester of pregnancy in 3-dimensional volumes. Testing the clinical applicability of automated software based on these formulas is the next step. Key words: automated sonography; fetal echocardiography; 3-dimensional sonography; volume sonography.Received October 29, 2006, from the Departments of Obstetrics and Gynecology (A.A.) onography is an operator-dependent imaging modality, with the quality of the final image dependent in part on the manual skills of the operator performing the ultrasound examination. This inherent limitation of sonography has resulted in lack of consistency, standardization, and reproducibility of images, especially when compared with other imaging modalities, such as computed tomography and magnetic resonance imaging. In obstetric sonography, the limitation of the technology is compounded by a constantly moving target, the fetus, which adds technical difficulty to the examination. Mounting evidence suggests that the performance of obstetric sonography with regard to the detection of fetal abnormalities has been suboptimal. [1][2][3][4] A recent study addressing the value of ultrasound accreditation noted that more than 40% of practices seeking accreditation by the American Institute of Ultrasound in Medicine were operating below the minimum established professional standards for the performance of

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Three‐dimensional ultrasound in the evaluation of fetal anomalies

Cited by 115 publications

References 23 publications

A Diagnostic Approach for the Evaluation of Spina Bifida by Three-dimensional Ultrasonography

A Diagnostic Approach for the Evaluation of Spina Bifida by Three-dimensional Ultrasonography

Prenatal diagnosis of holoprosencephaly with ethmocephaly via 3-dimensional sonography

Automated Sonography

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