Diffusion-weighted imaging hyperintensity is reversible in large middle cerebral artery infarction following thrombectomy:a case report / 南方医科大学学报
Journal of Southern Medical University
;
(12): 459-462, 2020.
Article
Dans Chinois
| WPRIM
| ID: wpr-828945
ABSTRACT
Diffusion-weighted imaging (DWI) is currently the most sensitive technique to diagnose early ischemic stroke. DWI signal hyperintensity is usually considered to suggest irreversible infarct core, but recent studies demonstrated that DWI hyperintensity signal could be reversible on small embolic lesions. Herein we present a case in a 63-year-old male patient, who was admitted to the emergency department with altered mental status and complaint of weakness in the left arm and leg 6.8 h prior to the admission. Emergency cranial magnetic resonance imaging (MRI) and angiography (MRA) revealed occlusion of his right middle cerebral artery (MCA) and large lesions on DWI. The patient underwent intra-artery thrombectomy after evaluation in spite of the large volume of the DWI lesions up to 91.5 mL at the baseline. His right MCA was recanalized at 8.5 h from symptom onset. One week after the procedure, the patient showed reduced DWI lesion volume to 11.58 mL. In this case we observed the reversibility of a large lesion of the anterior artery circulation presenting with hyperintensity on DWI, suggesting that the clinical implication of DWI hyperintensity should be interpreted with caution, and a large volume of baseline DWI hyperintensity may not be a contraindication to thrombectomy. This conclusion, however, awaits further validation by future large-scale randomized controlled trials.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Imagerie diagnostique
/
Imagerie par résonance magnétique
/
Thrombectomie
/
Accident vasculaire cérébral
/
Infarctus du territoire de l'artère cérébrale moyenne
/
Imagerie par résonance magnétique de diffusion
Type d'étude:
Essai clinique contrôlé
/
Etude diagnostique
Limites du sujet:
Humains
/
Mâle
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2020
Type:
Article
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