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Striatocapsular infarction: MRI and MR angiography
P Croisille1, F Turjman, B Croisile
1Department of Neuroradiology, Hôpital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon, France.
Abstract:
We present a case of left striatocapsular infarction manifest clinically as a transient right hemiparesis. MRI showed a left striatocapsular infarct. Striatocapsular infarction, unlike lacunar infarction, is often associated with occlusive disease of the carotid artery. In order to screen the carotid vessels, cervical MR angiography (MRA) was performed during the same examination, demonstrating a left internal carotid artery occlusion, confirmed by contrast arteriography. MRA, a noninvasive modality, can be a useful adjunct to MRI, when diagnostic information concerning the cervical carotid artery is needed.
Insights
A left striatocapsular infarct caused temporary right hemiparesis. Cervical MR angiography confirmed a left internal carotid artery occlusion, highlighting MRA as a valuable tool for assessing carotid artery disease.
Area of Science:
- Neurology
- Radiology
- Vascular Medicine
Background:
- Striatocapsular infarction, a type of ischemic stroke, is often linked to carotid artery occlusive disease.
- Transient hemiparesis can be a presenting symptom of significant cerebrovascular events.
Observation:
- A patient presented with transient right hemiparesis due to a left striatocapsular infarct identified via MRI.
- Cervical MR angiography (MRA) was performed concurrently to evaluate the carotid arteries.
Findings:
- MRI confirmed a left striatocapsular infarct.
- Cervical MRA revealed a left internal carotid artery occlusion, subsequently verified by contrast arteriography.
Implications:
- This case underscores the association between striatocapsular infarcts and carotid artery disease.
- MRA is a noninvasive and effective method for evaluating cervical carotid arteries in stroke workup.
- Integrating MRA with MRI enhances diagnostic capabilities for cerebrovascular occlusive disease.