Reference Ranges for Vertebral Body Areas of the Fetal Lumbosacral Spine on 3-Dimensional Sonography Using Volume Contrast Imaging With OmniView

Martinez, Luis Henrique; Júnior, Edward Araujo; Nardozza, Luciano Marcondes Machado

doi:10.7863/jum.2012.31.11.1743

Cited by 7 publications

(6 citation statements)

References 26 publications

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“…Lei and her colleagues had used 3D ultrasonography VCI technique to locate the CM according to its corresponded vertebral body level, and they found that 3D ultrasonography could clearly mark the position of the CM in spina bifida fetuses, which was significantly lower than that of normal fetuses . Martinez's group proposed 3D ultrasonography VCI technique as a superior method for evaluating fetal spinal cord by analyzing the sonographic views of fetal spine in the coronal, cross and sagittal sections . VCI Omni view mode was first applied for fetal spine screening and proven to be a feasible approach for fetal spinal examination .…”

Section: Discussionmentioning

confidence: 99%

“…10 Martinez's group proposed 3D ultrasonography VCI technique as a superior method for evaluating fetal spinal cord by analyzing the sonographic views of fetal spine in the coronal, cross and sagittal sections. 11 VCI Omni view mode was first applied for fetal spine screening and proven to be a feasible approach for fetal spinal examination. 12 However, these studies only provide qualitatively diagnostic assessment for CM position, which largely relies on the operator's experience and skills, and often produces biased assessment.…”

Section: Discussionmentioning

confidence: 99%

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Measurement of fetal conus distance with 3D ultrasonography as a reliable prenatal diagnosis method for tethered cord syndrome

Ruan²,

Wang

et al. 2020

J of Obstet and Gynaecol

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Aim The aim of this study is to investigate if three‐dimensional (3D) ultrasonography is a reliable diagnosis method for prenatal tethered cord syndrome (TCS) by measuring fetal conus distance (CD) in comparison to two‐dimensional (2D) ultrasonography and magnetic resonance imaging (MRI). Methods This retrospective study included 468 normal fetuses as control group and 14 TCS fetuses as tethered group. CD were measured by 2D, 3D ultrasonography and MRI, and the reliability and repeatability of CD measurement was compared between two experienced ultrasound specialists or among the multiple measurements for each specialist. Results The results showed that 3D ultrasonography was superior to 2D ultrasonography in the repeatability of measuring CD. The CD were positively correlated to gestational ages in control group (P < 0.05). The CD of TCS group (−1.342 ± 0.124) was significantly shorter than that of normal control group (0.013 ± 0.965) (P < 0.01). There were no significant differences in the effectiveness of locating conus medullaris and measuring CD between 3D ultrasonography and MRI.Conclusion Measurement of fetal CD with 3D ultrasonography can serve as a reliable and cost‐effective prenatal diagnosis method for TCS.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Measurement of fetal conus distance with 3D ultrasonography as a reliable prenatal diagnosis method for tethered cord syndrome

Ruan²,

Wang

et al. 2020

J of Obstet and Gynaecol

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“…Scharf et al [12] have reported that image information acquired by 3D ultrasound is nearly always inferior to 2D ultrasound. However, the ability to review the volume data with 3D ultrasound may enable physicians to determine the position of the spinal cord or the extent of neural tube defects with more accuracy [13][14][15] . The advantage of 3D ultrasound is the possibility to display multiplanar and rendered views on the same screen, making it easier to evaluate the level of the conus medullaris [15] .…”

Section: Discussionmentioning

confidence: 99%

Prenatal Sacral Anomalies Leading to the Detection of Associated Spinal Cord Malformations

Morel

Friszer²,

Jouannic³

et al. 2017

Fetal Diagn Ther

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Introduction: Systematic analysis of the spine is recommended as part of the basic sonographic examination. The aim of our study is to assess the proportion of spinal cord anomalies diagnosed following detection of a sacral anomaly. Material and Methods: We analyzed retrospectively collected data in a prenatal tertiary center during a 9-year period. Patients were referred for second-line ultrasound in the context of diabetes mellitus or following detection of pelvic or lower spine anomalies. We included all cases of sacral anomalies with available postnatal or postmortem outcomes (imaging and/or pathologic data) and excluded all cases of open dysraphism (myelomeningocele). Results: Nineteen patients were included. The mean gestational age was 28 weeks (21-39). Sacral anomalies included 2 cases of complete agenesis, 12 cases of partial agenesis, 4 segmentation anomalies, and 1 case of abnormal angulation of the sacral spine. Fourteen associated spinal cord malformations included 8 tethered spinal cords, 5 truncated spinal cords, and 1 lipoma of the filum terminale. All anomalies were confirmed by postnatal or postmortem examinations. Conclusions: Sacral anomalies detected during basic sonographic examination represent an important warning sign for associated spinal cord anomalies, with possible poor neonatal outcome.

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“…In malformed fetuses, a precise diagnosis was achieved with both techniques, although images obtained with VCI-A were found to be of su-displayed with variable rendering methods to better demonstrate the different anatomic structures contained within. Thus far, it has been mostly utilized to decrease artefacts and increase contrast resolution [6][7][8][9]. VCI can also be used in real-time scanning [10,11], but the mechanical four-dimensional (4D) probes thus far available have a limited image rate, causing a delay between acquisition and visualization that hampers the examinations of moving limbs.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Volume Contrast Imaging in the A Plane with a Four-Dimensional Electronic Probe Facilitates the Evaluation of Fetal Extremities in Midtrimester Sonograms

Bellussi

Simonazzi²,

Salsi³

et al. 2017

Fetal Diagn Ther

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Objective: To evaluate the efficiency of real-time volume contrast imaging in the A plane (VCI-A) of fetal extremities, compared with conventional two-dimensional ultrasound (2D). Methods: This was a randomized controlled trial of 100 patients undergoing midtrimester sonography. The fetal limbs were imaged with either 2D or VCI-A with a four-dimensional (4D) electronic probe. Time required for the examination, number of images stored, and quality of the documentation were compared. During the study, 6 fetuses with abnormal extremities were scanned with both 2D and VCI-A, and the diagnostic accuracy and quality of the images were also compared. Results: In the VCI-A group, the fetal extremities were imaged more rapidly (2.3 ± 1.1 vs. 3.3 ± 0.9 min, p < 0.0001), less images were required to document the examination (5.6 ± 1.4 vs. 7.3 ± 1.6), and an optimal documentation was more frequently obtained (84 vs. 54%, p < 0.0001) compared with the 2D group. In malformed fetuses, a precise diagnosis was achieved with both techniques, although images obtained with VCI-A were found to be of superior quality. Conclusions: Real-time VCI-A with a 4D electronic probe is an effective tool for imaging the fetal extremities in midtrimester examinations and carries some advantages over conventional 2D sonography.

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Reference Ranges for Vertebral Body Areas of the Fetal Lumbosacral Spine on 3-Dimensional Sonography Using Volume Contrast Imaging With OmniView

Cited by 7 publications

References 26 publications

Measurement of fetal conus distance with 3D ultrasonography as a reliable prenatal diagnosis method for tethered cord syndrome

Measurement of fetal conus distance with 3D ultrasonography as a reliable prenatal diagnosis method for tethered cord syndrome

Prenatal Sacral Anomalies Leading to the Detection of Associated Spinal Cord Malformations

Real-Time Volume Contrast Imaging in the A Plane with a Four-Dimensional Electronic Probe Facilitates the Evaluation of Fetal Extremities in Midtrimester Sonograms

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