Spectrum of anterior cerebral artery territory infarction: clinical and MRI findings

Küçük Resim Yok

Tarih

2002

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Blackwell Publishing Ltd

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

To evaluate and review the clinical spectrum of anterior cerebral artery (ACA) territory infarction, we studied 48 consecutive patients who admitted to our stroke unit over a 6-year period. We performed magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) in all patients, and diffusion magnetic resonance imaging (DWI) in 21. In our stroke registry, patients with ACA infarction represented 1.3% of 3705 patients with ischemic stroke. The main risk factors of ACA infarcts was hypertension in 58% of patients, diabetes mellitus in 29%, hypercholesterolemia in 25%, cigarette smoking in 19%, atrial fibrillation in 19%, and myocardial infarct in 6%. Presumed causes of ACA infarct were large-artery disease and cardioembolism in 13 patients each, small-artery disease ( SAD) in the territory of Heubner's artery in two and atherosclerosis of large-arteries (< 50% stenosis) in 16. On clinico-radiologic analysis there were three main clinical patterns depending on lesion side; left-side infarction ( 30 patients) consisting of mutism, transcortical motor aphasia, and hemiparesis with lower limb predominance; right side infarction ( 16 patients) accompanied by acute confusional state, motor hemineglect and hemiparesis; bilateral infarction ( two patients) presented with akinetic mutism, severe sphincter dysfunction, and dependent functional outcome. Our findings suggest that clinical and etiologic spectrum of ACA infarction may present similar features as that of middle cerebral artery infarction, but frontal dysfunctions and callosal syndromes can help to make a clinical differential diagnosis. Moreover, at the early phase of stroke, DWI is useful imaging method to locate and delineate the boundary of lesion in the territory of ACA.

Açıklama

Anahtar Kelimeler

anterior cerebral artery, magnetic resonance angiography, magnetic resonance imaging, stroke

Kaynak

European Journal of Neurology

WoS Q Değeri

Q2

Scopus Q Değeri

Cilt

9

Sayı

6

Künye