[Cerebral and spinal cavernomas]

Area of Science:

• Neurology
• Radiology
• Vascular Malformations

Background:

• Cavernous malformations, also known as cavernomas, are a type of cerebral angiodysplasia.
• These vascular anomalies can occur sporadically or run in families and may cause neurological symptoms like epilepsy, independent of shunts.
• Cavernomas can be found in both intracranial and spinal locations.

Purpose of the Study:

• To evaluate the diagnostic capabilities of different imaging modalities for cavernomas.
• To compare the effectiveness of Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) in detecting cavernomas.
• To explore the utility of MRI in differentiating between familial and sporadic forms of cavernomas.

Main Methods:

• Review of diagnostic performance of MRI and CT for cavernoma detection.
• Focus on susceptibility-sensitive gradient echo sequences in MRI.
• Consideration of Digital Subtraction Angiography (DSA) for rare differential diagnoses.

Main Results:

• MRI demonstrates superior lesion detection compared to CT, particularly for non-hemorrhagic or calcified cavernomas.
• Susceptibility-sensitive MRI sequences are effective in identifying cavernomas even without acute or subacute hemorrhage.
• CT is primarily reserved for diagnosing acute hemorrhages.

Conclusions:

• MRI is the preferred imaging modality for diagnosing cavernomas due to its high sensitivity.
• Advanced MRI techniques can detect cavernomas irrespective of hemorrhage or calcification.
• MRI aids in differentiating familial from sporadic cavernomas, with DSA playing a limited role in diagnosis.