when can we check for ventromegaly due to schizophrenia
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Ventriculomegaly
Ventriculomegaly is caused by an excess amount of cerebrospinal fluid within the ventricular system. In the second trimester the diagnosis is based on enlargement of the lateral ventricles to a level greater than 10 mm. In the first trimester this sign is of little value, as the ventricles almost completely fill the hemispheres (Figure 1-11). An enlarged 3rd ventricle or an anechogenic brain with only the falx visible are rarely reported signs in the first trimester and are associated with genetic syndromes.57 Bronshtein and Ben-Shlomo reported thinning of the choroid plexus and the dangling choroid, as the earliest signs of fetal ventriculomegaly.58 These signs, however, have been shown to be present in a relatively small proportion of fetuses in prospective screening studies. By pooling the data from three such studies, it is seen that ventriculomegaly was diagnosed in only 38% of fetuses in the first trimester, with the remaining cases usually detected at the mid-trimester scan
Ventriculomegaly is caused by an excess amount of cerebrospinal fluid within the ventricular system. In the second trimester the diagnosis is based on enlargement of the lateral ventricles to a level greater than 10 mm. In the first trimester this sign is of little value, as the ventricles almost completely fill the hemispheres (Figure 1-11). An enlarged 3rd ventricle or an anechogenic brain with only the falx visible are rarely reported signs in the first trimester and are associated with genetic syndromes.57 Bronshtein and Ben-Shlomo reported thinning of the choroid plexus and the dangling choroid, as the earliest signs of fetal ventriculomegaly.58 These signs, however, have been shown to be present in a relatively small proportion of fetuses in prospective screening studies. By pooling the data from three such studies, it is seen that ventriculomegaly was diagnosed in only 38% of fetuses in the first trimester, with the remaining cases usually detected at the mid-trimester scan
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