CNS Guidelines

ASUM D13 Guidelines for Neurosonography in Infants

ASUM D11 Guidelines for the Performance of First Trimester Ultrasound

ASUM D2 Statement on the Mid Trimester Obstetric Scan

ASUM D12 Guidelines for the Performance of Third Trimester Ultrasound

ASUM D16 Statement on Intracranial Cerebrovascular Ultrasound

ASUM D7 Statement on Normal Ultrasonic Fetal Measurements

This policy implements a standard obstetric chart to ensure uniform reporting of obstetric measurements across Australia and New Zealand. The data used is based on the most recent research involving Australasian populations.

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ISUOG Interim Guidance on ultrasound for Zika virus infection in pregnancy

In response to the World Health Organization (WHO) statements and international concerns regarding the Zika virus (ZIKV) outbreak, ISUOG is publishing the following guidance for ultrasound during pregnancy. With the current uncertainty regarding many aspects of the diagnosis and clinical course of ZIKV infection in pregnancy, potentially valuable information may be obtained by ultrasound practitioners that may help in counseling pregnant women and further improve our understanding of the pathophysiology of ZIKV infection in pregnancy.

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ISUOG Practice Guidelines: performance of first-trimester fetal ultrasound scan

Routine ultrasound examination is an established part of antenatal care if resources are available and access possible. It is commonly performed in the second trimester, although routine scanning is offered increasingly during the first trimester, particularly in high-resource settings. Ongoing technological advancements, including high-frequency transvaginal scanning, have allowed the resolution of ultrasound imaging in the first trimester to evolve to a level at which early fetal development can be assessed and monitored in detail.

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ISUOG guidelines for performing the ‘basic examination’ and the ‘fetal neurosonogram’

Central nervous system (CNS) malformations are some of the most common of all congenital abnormalities. Neural tube defects are the most frequent CNS malformations and amount to about 1–2 cases per 1000 births. The incidence of intracranial abnormalities with an intact neural tube is uncertain as probably most of these escape detection at birth and only become manifest in later life. Long-term follow-up studies suggest however that the incidence may be as high as one in 100 births.

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ISUOG Practice Guidelines: performance of fetal magnetic resonance imaging

Fetal magnetic resonance imaging (MRI) is an important diagnostic imaging adjunct to ultrasonography, particularly for the assessment of fetal brain development. A survey conducted by ISUOG in 2014 (Appendix S1), in which 60 international perinatal centers participated, showed that fetal MRI is being performed in one or more centers in at least 27 countries worldwide. However, the quality of imaging, sequences used and operator experience appear to differ widely between centers.

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ISUOG Practice Guidelines: role of ultrasound in twin pregnancy

The incidence of multiple pregnancy is rising, mainly due to delayed childbirth and advanced maternal age at conception and the resultant widespread use of assisted reproduction techniques1. The twin birth rate increased by just under 70% between 1980 (19 per 1000 live births) and 2006 (32 per 1000 live births)

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Three-dimensional ultrasound examination of the fetal central nervous system

Three-dimensional (3D) ultrasound examination has been used to evaluate the fetal central nervous system(CNS). Different approaches have been suggested that may be employed in both basic and dedicated examinations. The purpose of this paper is to illustrate the practical details of the different techniques described so far.

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