Volume 22 No 1 (2024)
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Cerebral Venous Thrombosis: Diagnosing Accuracy of Magnetic Resonance Imaging Brain and Magnetic Resonance Venography
Dr.Sadananda Billal, Dr.SanathkumarS., Dr. Pallavi G.
Abstract
Background
Cerebral venous thrombosis (CVT) potentially reversible, a relatively rare neurologic condition. It denotes cerebral venous thrombosis-induced intraluminal blockage. The gold standard in the investigation is now magnetic resonance venography (MRV) with magnetic resonance imaging (MRI) to accurately diagnose CVT.
Objectives
1. To evaluate the CVT using T1W, T2W, FLAIR, DWI and MRV.
2. To study the pattern of distribution of superficial and deep CVT on MRV.
3. To study the parenchymal abnormalities associated with CVT.
Methods
This study comprised 50 patients from the hospitals affiliated with Mysore Medical College and Research Institute who were diagnosed with CVT on MRI and MRV between November 2018 and August 2020. Using a 1.5TMRI 8 channel GE BRIVO MRI machine, each patients were evaluated.
Results
Puerperium was the most frequent risk factor in our study, with a considerable female preponderance and a common age group of 21–30 years old. Headache was the most frequent symptom, followed by seizures. The most often affected sinus was the SSS. About three-quarters of the patients had focal parenchymal abnormalities. Most frequently seen focal parenchymal abnormality was hemorrhagic infarct. Focal parenchymal abnormalities were categorised as either cytotoxic or vasogenic oedema using DWI, with the former being more prevalent. In every patient evaluated in our study, MRV revealed thrombosis. T1/T2WI detected CVT in 79.2% of the thrombosed venous segments. T2* detected all the superficial cortical vein thrombosis and thrombosed deep venous segments detected on MRV.
Conclusion
MRV in combination with MRI is the most comprehensive, non-invasive, safe, in-vivo diagnostic modality for delineation of venous anatomy, diagnosis of cerebral venous thrombosis and its extent of involvement, parenchymal involvement, predicting the prognosis and follow-up.
Keywords
CVT, MR VENOGRAPHY, MR
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