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Analysis of Cerebral Vasospasm in a Murine Model of Subarachnoid Hemorrhage with High Frequency Transcranial Duplex Ultrasound
Published on: June 3, 2021
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Reversible cerebral vasoconstriction syndrome and migraine: sonography study
1DEKA University Clinic, Tbilisi, Georgia;
Georgian Medical News
|April 19, 2014
Summary
Reversible cerebral vasoconstriction syndrome (RCVS) and migraine share ultrasound findings of vasospasm. However, RCVS shows diffuse vasospasm, while migraine predominantly affects posterior circulation, aiding differential diagnosis.
Area of Science:
- Neurology
- Vascular Neurology
- Diagnostic Imaging
Background:
- Reversible cerebral vasoconstriction syndrome (RCVS) presents with severe headaches and segmental cerebral artery constriction, typically resolving within 3 months.
- Diagnosis of RCVS relies on angiography and ultrasound monitoring, but differentiating it from migraine can be challenging.
- Understanding the differences in ultrasound findings between RCVS and migraine is crucial for accurate diagnosis and management.
Purpose of the Study:
- To investigate and compare ultrasound data obtained via Transcranial Dopplerography (TCD) and Transcranial Color-Coded Duplex Sonography (TCCD) between patients with RCVS and migraine.
- To identify distinct sonographic markers that can help differentiate RCVS from migraine.
Main Methods:
- Sixty-one patients (27 with RCVS, 34 with migraine, 15 healthy controls) underwent TCD and TCCD examinations over two months.
- Magnetic resonance angiography (MRA) was performed in 29 patients.
- Ultrasound data, including mean maximum velocities (MM V) and Lindegaard Index (LI), were analyzed and compared between groups.
Main Results:
- Both RCVS and migraine groups exhibited increased cerebral blood flow velocities and elevated LI compared to controls, indicating vasospasm.
- No significant difference in the overall degree of vasospasm was found between RCVS and migraine.
- Vasospasm in migraine patients was more localized to the posterior circulation, whereas RCVS demonstrated a more diffuse pattern of vasospasm across cerebral arteries.
Conclusions:
- Transcranial Dopplerography and TCCD reveal vasospasm in both RCVS and migraine, with no significant difference in severity.
- The distribution pattern of vasospasm differs: migraine predominantly involves posterior circulation, while RCVS shows a more diffuse involvement.
- Further research, including randomized controlled trials, is necessary to fully elucidate the pathophysiology and refine diagnostic criteria.
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