MR imaging of schizencephaly

Area of Science:

• Neuroradiology
• Developmental Neuroscience
• Medical Imaging

Background:

• Schizencephaly is a congenital brain malformation characterized by clefts in the cerebral hemispheres.
• Patients often present with severe neurological deficits, including intractable seizures and developmental delay.
• Previous diagnostic imaging modalities like CT have limitations in fully characterizing the anomaly.

Purpose of the Study:

• To evaluate the utility of MR imaging in diagnosing schizencephaly.
• To compare the sensitivity of MR imaging versus CT in detecting schizencephaly and associated brain abnormalities.
• To illustrate the anatomical changes of schizencephaly using MR imaging.

Main Methods:

• Retrospective review of MR imaging studies in six patients diagnosed with schizencephaly.
• Comparison of MR findings with prior CT scans in three patients.
• Detailed analysis of the characteristic clefts and associated malformations visible on MR.

Main Results:

• MR imaging successfully diagnosed schizencephaly in all six patients.
• MR imaging demonstrated higher sensitivity than CT in detecting the holohemispheric clefts.
• MR imaging revealed associated abnormalities such as pachygyria, polymicrogyria, and heterotopic gray matter, which were less apparent on CT.
• MR imaging provided excellent visualization of the anatomical alterations.

Conclusions:

• MR imaging is the preferred modality for diagnosing schizencephaly due to its superior sensitivity and ability to detect associated cortical malformations.
• The findings underscore the importance of MR imaging in the comprehensive evaluation of patients with suspected schizencephaly.
• MR imaging aids in understanding the spectrum of anatomical changes associated with this disorder.