What does ventricular asymmetry mean?

What does ventricular asymmetry mean?

Asymmetry was defined as a difference in width of ≥ 2 mm between the two lateral ventricles. Forty-three cases were included in the study group and compared with a control group of 94 normal cases without IVA.

Is some form of ventricular asymmetry normal?

Asymmetric Size and Morphology. Size asymmetry between the lateral ventricles (Fig 6) occurs in 5%–12% of healthy individuals.

What do lateral ventricles do in the brain?

The function of the ventricles is to house the cerebrospinal fluid (CSF) and provide the passage for its circulation.

What does lateral ventricle mean?

Lateral ventricle: A communicating cavity in the brain that is part of a system of four communicating cavities that are continuous with the central canal of the spinal cord. The two lateral ventricles are located in the cerebral hemispheres, one in each hemisphere.

What do you mean by asymmetrical?

1 : having two sides or halves that are not the same : not symmetrical an asymmetrical design asymmetrical shapes. 2 usually asymmetric, of a carbon atom : bonded to four different atoms or groups.

Are brain ventricles symmetrical?

The authors conclude that asymmetry of the lateral ventricles of the brain is a relatively common CT finding that has important clinical and brain structural correlates and deserves more attention in the field of imaging.

What are the functions of ventricles?

Ventricular function The principal role of the ventricles is to pump blood out of the heart and into either systemic or pulmonary circulation. During diastole (relaxation) the ventricle is in the phase of passive filling where blood passes through the atria and into the ventricles.

What is the function of the fourth ventricle?

The main function of this ventricle is to protect the human brain from trauma (via a cushioning effect) and to help form the central canal, which runs the length of the spinal cord. This ventricle has a roof and a floor.

What is the normal size of a lateral ventricle in a fetus?

The lateral ventricular width (LVW) range for normal fetuses was 0.7 to 1.1 cm as compared with a LVW range of 1.1 to 2.7 cm for 16 fetuses with hydrocephalus diagnosed during the second trimester. In conclusion, the LVR is extremely useful in differentiating ventriculomegaly from normal ventricular size.

What is fetal lateral Ventriculomegaly?

Ventriculomegaly is a condition in which the ventricles appear larger than normal on a prenatal ultrasound. This can occur when CSF becomes trapped in the spaces, causing them to grow larger. Ventricles develop early in pregnancy and can be seen on a prenatal ultrasound in the second trimester, at about the 15th week.

Is it normal to have lateral ventricular asymmetry?

Conclusions: Some degree of asymmetry of the lateral ventricles exists in the human fetal brain and is detectable in utero. Lateral ventricular asymmetry alone is probably not clinically significant, and it may be considered as a normal variant, rather than a pathologic finding.

Is the left lateral ventricle bigger than the right?

In 15 fetuses (71%), the body or the occipital horn of the left lateral ventricle was larger than the right, whereas in six fetuses (29%), the right was larger than the left. In four cases (20%), serial scans noted resolution of asymmetry; in 15 (75%), it was persistent; and in one (5%), asymmetry increased.

Can a MRI head be done for asymmetry?

It seems reasonable to perform MRI head in those patients with the more severe degrees of asymmetry; in the Turkish study 3.5% patients had underlying tumors on MRI that were occult on CT, even in retrospect.