ArticleNeurosciences (Riyadh, Saudi Arabia)2025
Detection of venous angiomas on susceptibility enhanced magnetic resonance imaging in patients with seizures.
Article in Neurosciences (Riyadh, Saudi Arabia), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesTo evaluate the use of susceptibility-enhanced sequence with conventional magnetic resonance imaging (MRI) of the brain for identification of venous angiomas in epilepsy work up.
methodsA record-based study was performed retrospectively in Radiology department at our Hospital in Eastern region of Saudi Arabia, from Jan. 2019-2024. Adult patients for whom MRI brains were conducted for epilepsy work-up with added SWAN (susceptibility weighted angiography) sequence were considered. Imaging proven cases of space occupying lesions in the brain, post-injury, and post-interventional cases were not taken. A venous angioma (or malformation) was documented when a tuft of veins drained to a larger vein (traversing through cortex or reaching under ependymal layer), appeared low signal structure on SWAN image, and enhanced on contrast-enhanced sequence. Consensus reporting was made by 2 experienced neuroradiologists. The usefulness of the SWAN sequence in the detection of venous malformation determined if the visualized abnormality was found to be related to a focus resulting in abnormal waves on the brain electroencephalography. This observation was compared to the accidently found such malformations that were seen in epileptic patients with normal EEGs (control group). Fisher's Exact test was applied and a
resultsTotal number of patients was 114; 65 females (57%) and 49 males (43%), with an average age of 31.4 (range, 15-50). The SWAN found venous angiomas in 34 (29.8%), and 8 were responsible for abnormal electroencephalograms while neither of the 3 accidently detected venous malformations in the control with normal EEGs (
conclusionAn added SWAN sequence with conventional MRI brain imaging for patients with seizures can assist to visualize symptomatic venous angiomas leading to focal seizures.
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