Enhancement of robin-virchow spaces MRI evaluation
I Tsitouridis1, S Papaioannou, M Arvaniti
1Radiology Department, Papageorgiou General Hospital; Thessaloniki, Greece - tsitouridis@papageorgiou-hospital.gr.
The Neuroradiology Journal
|November 22, 2013
Summary
Perivascular spaces, normally microscopic, can abnormally dilate in various conditions. This dilatation is linked to aging and vascular risk factors, but its exact cause remains unclear.
Area of Science:
- Neuroimaging
- Vascular Neurology
- Radiology
Background:
- Perivascular spaces (PVS) are typically microscopic fluid-filled spaces surrounding blood vessels in the brain.
- Robin-Virchow spaces are a normal finding in specific brain regions like the substantia innominata.
- Pathologic conditions can lead to abnormal PVS dilatation, increasing their visibility on MRI.
Purpose of the Study:
- To review the current understanding of perivascular space dilatation.
- To identify common associations and potential etiologies of enlarged perivascular spaces.
Main Methods:
- Review of existing literature on perivascular spaces and their dilatation.
- Analysis of MRI findings related to PVS abnormalities.
- Correlation of PVS dilatation with clinical risk factors.
Main Results:
- Abnormal dilatation of perivascular spaces is observed in various pathological states.
- Dilatation is frequently associated with anterior brain abnormalities.
- Commonly linked factors include aging, diabetes, hypercholesterolemia, smoking, and hypertension.
Conclusions:
- Perivascular space dilatation is a recognized radiological finding with multifactorial associations.
- While linked to vascular risk factors, the precise etiology of PVS dilatation is currently unknown.
- Further research is needed to elucidate the exact mechanisms driving PVS enlargement.
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