Reference Ranges of Fetal Cisterna Magna Length and Area Measurements by 3-Dimensional Ultrasonography Using the Multiplanar Mode

Passos, Ana Maria; Júnior, Edward Araujo; Bruns, Rafael Frederico; Nardozza, Luciano Marcondes Machado

doi:10.1177/0883073814535496

Cited by 6 publications

(12 citation statements)

References 22 publications

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“…Excluded studies and reasons for exclusion are reported in Table S3 . Finally, 42 studies, reported between January 1970 and 2021, met the inclusion criteria, and these provided data for 45,626 fetuses, included in the final analysis ( Table 1 ) [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ]. The median sample size of participating fetuses was 372.5 (range: 50 to 8313; 25th percentile: 175.8; 75th percentile: 709.3).…”

Section: Resultsmentioning

confidence: 99%

A Systematic Review of Methodology Used in Studies Aimed at Creating Charts of Fetal Brain Structures

et al. 2021

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Ultrasound-based assessment of the fetal nervous system is routinely recommended at the time of the mid-trimester anatomy scan or at different gestations based on clinical indications. This review evaluates the methodological quality of studies aimed at creating charts for fetal brain structures obtained by ultrasound, as poor methodology could explain substantial variability in percentiles reported. Electronic databases (MEDLINE, EMBASE, Cochrane Library, and Web of Science) were searched from January 1970 to January 2021 to select studies on singleton fetuses, where the main aim was to construct charts on one or more clinically relevant structures obtained in the axial plane: parieto-occipital fissure, Sylvian fissure, anterior ventricle, posterior ventricle, transcerebellar diameter, and cisterna magna. Studies were scored against 29 predefined methodological quality criteria to identify the risk of bias. In total, 42 studies met the inclusion criteria, providing data for 45,626 fetuses. Substantial heterogeneity was identified in the methodological quality of included studies, and this may explain the high variability in centiles reported. In 80% of the studies, a high risk of bias was found in more than 50% of the domains scored. In conclusion, charts to be used in clinical practice and research should have an optimal study design in order to minimise the risk of bias and to allow comparison between different studies. We propose to use charts from studies with the highest methodological quality.

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Section: Resultsmentioning

confidence: 99%

A Systematic Review of Methodology Used in Studies Aimed at Creating Charts of Fetal Brain Structures

et al. 2021

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“…Very recently, Passos et al (2014) established reference ranges for fetal cisterna magna length and area by 3-DUS in the multiplanar mode in 224 normal pregnancies between 17 and 30 wk of gestation. The authors found that the mean length and area of the fetal cisterna magna ranged from 0.50 6 0.10 to 0.79 6 0.18 cm and from 0.95 6 0.18 to 3.09 6 0.62 cm 2 , respectively.…”

Section: -D Ultrasound and The Study Of Fetal Brain Anatomy: ''The Nmentioning

confidence: 99%

Role of 3-D Ultrasound in Clinical Obstetric Practice: Evolution Over 20 Years

Tonni

Martins

Filho³

et al. 2015

Ultrasound in Medicine & Biology

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“…This means that the cutoff value of 10 mm provides a good measure between 18 and 23 weeks of gestation but is probably somewhat too high early in gestation, and too low later. There are reference values for the area and length [34], as well as the volume of the cisterna magna [35].…”

Section: Cisterna Magnamentioning

confidence: 99%

The Fetal Posterior Fossa on Prenatal Ultrasound Imaging: Normal Longitudinal Development and Posterior Fossa Anomalies

Pertl¹,

Eder²,

Stern³

et al. 2019

Ultraschall in Med

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Fetal neurosonography and the assessment of the posterior fossa have gained in importance during the last 2 decades primarily due to the development of high-resolution ultrasound probes and the introduction of 3 D sonography. The anatomical development of the posterior fossa can be visualized well with the newest ultrasound technologies. This allows better knowledge of the anatomical structures and helps with understanding of the development of malformations of the posterior fossa. In this article the longitudinal development of the posterior fossa structures will be reviewed. The embryologic description will be compared with ultrasound descriptions. These embryologic and anatomic illustrations form the basis for the screening and diagnosis of malformations of the posterior fossa. During the first trimester, screening for open spina bifida as well as cystic malformations of the posterior fossa is possible. In the second and third trimester, malformations of the posterior fossa can be subdivided into 3 groups: fluid accumulation in the posterior fossa (Dandy-Walker malformation, Blake’s pouch cyst, mega cisterna magna, arachnoid cyst, vermian hypoplasia), decreased cerebellar biometrics (volume) (cerebellar hypoplasia, pontocerebellar hypoplasia) and suspicious cerebellar anatomy (Arnold-Chiari malformation, rhombencephalosynapsis, Joubert syndrome). This algorithm, in combination with knowledge of normal development, facilitates the diagnostic workup of malformations of the posterior fossa.

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Reference Ranges of Fetal Cisterna Magna Length and Area Measurements by 3-Dimensional Ultrasonography Using the Multiplanar Mode

Cited by 6 publications

References 22 publications

A Systematic Review of Methodology Used in Studies Aimed at Creating Charts of Fetal Brain Structures

A Systematic Review of Methodology Used in Studies Aimed at Creating Charts of Fetal Brain Structures

Role of 3-D Ultrasound in Clinical Obstetric Practice: Evolution Over 20 Years

The Fetal Posterior Fossa on Prenatal Ultrasound Imaging: Normal Longitudinal Development and Posterior Fossa Anomalies

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