No abstract available.
Cerebral Arteries* ; Hemodynamics* ; Ultrasonography*

A study was conducted on 220 patients with the first ischemic infarction due to atherosclerosis treated at Stroke Unit of People Hospital No 115 from January 2002 to April 2002, and 230 control subjects. Results: Among 220 cases of ischemic infraction, there were 112 female and 108 male, mean ages 60.71 ±11.9 years old. Among them, 20% is due to large artery thrombosis and the mean plasma homocystein levels was 14.4µmol/L, 80% is due to small artery thrombosis and the mean plasma homocystein levels is 13µmol/L. There was no significantly difference in the mean plasma homocystein levels between large artery thrombosis and small artery thrombosis (p=0.1). The adjusted odd ratios (OR) for large artery and small artery infarctions associated with moderate hyperhomocysteinemia (>1515µmol/L) were 2.56 and 2.20, respectively
Cerebral Infarction ; Arteries ; Hyperhomocysteinemia

Aneurysms arising from the peripheral distribution of the cerebral arteries are very rare, and those aneurysms are mostly mycotic in origin. We have experienced a rare case of non-mycotic, peripheral aneurysm of the middle cerebral artery. A clinical description of our case as well as a review of the literature about possible etiologies contributing to the peripheral aneurysmal formation is presented.
Aneurysm* ; Cerebral Arteries ; Middle Cerebral Artery

Autologous fat injection for soft tissue augmentation in the face has been claimed to be a safe procedure. However, there are several case reports where patients suffered from various neurologic deficits following fat injections. We report a patient who suffered from cerebral infarction after fat injections into the face. We assume that fragments of fat reach cerebral arteries by reversed flow through the branches of the carotid arteries caused by local increase in pressure in highly vascularized tissue.
Carotid Arteries ; Cerebral Arteries ; Cerebral Infarction ; Humans ; Neurologic Manifestations ; Stroke*

No abstract available.
Arteries* ; Middle Cerebral Artery ; Stroke*

Several studies have described the anatomy of the anterior cerebral vascular complex involving the proximal anterior cerebral artery(A1), the anterior communicating artery, and the recurrent artery of Heubner. The anatomic data of these vessels with special reference to the cerebrovascular artery were reviewed. The unilateral hypoplasia of the proximal anterior cerebral artery and fenestration of the anterior communicating artery were most frequent vascular anomalies of each vessel which were associated with aneurysms of the anterior communicating artery.
Aneurysm ; Anterior Cerebral Artery ; Arteries*

Tortuous arteries are common clinical observation. Although mild tortuosity is asymptomatic, severe tortuosity can lead to ischemic attack in several organs. With advances in imaging technology, an increasing number of tortuous vessels have been detected. The purpose of this report is to describe a case of acute cerebral infarction due to tortuous subclavian artery and to review the literature.
Arteries ; Cerebral Infarction* ; Subclavian Artery*

Radionuclide cerebral angiography is a indirect method of measuring cerebral blood flow in ischmic cerebrovascular disease, but conventional radionuclide cerebral angiogra phy has been interpretated by simple inspection without quantification. We designed this study to obtain the quantitative data via computerized time-activity analysis of the radionuclide cerebral angiography in region of interest. In 30 persons without evidence of cerebrovascular disease right/left ratios were 0.993+0.252(mean+ 2SD) in antenor cerebral artery territories of the cerebral hemisphere and 0.947 0.186(mean+2SD) in middle cerebral artery territories. Thirteen patients of 33 patients(39.4%) with ischemic cerebrovascular disease had right / left ratios that were beyond 2 standard deviation of the normal mean. We suggest this study is valuable in patients suspected Gf cerebrovascular disease while this method will require extensive study.
Cerebral Angiography* ; Cerebral Arteries ; Cerebrum ; Humans ; Middle Cerebral Artery

Superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is often performed for the management of the patients wth chronic cerebral ischemic lesions or moyamoya disease. Postoperative aneurysm formation at the anastomosis site or its close proximity is a very rare complication. A 44-year-old female underwent bilateral STA-MCA bypass due to moyamoya disease. Approximately 2 years after bypass surgery, an aneurysm of the recipient cortical artery near the site of the anastomosis was found. Surgical exploration of the region demonstrated an 5.4 x 6.4 x 5 mm aneurysm arising near the site of the anastomosis. The aneurysm was clipped, taking care to keep the bypass flowing. This aneurysm had a thick wall and appeared to be a true saccular aneurysm caused by hemodynamic stress. The author present a case of this unusual complication and provide a brief review of literature.
Adult ; Aneurysm ; Arteries ; Cerebral Arteries* ; Cerebral Revascularization ; Female ; Hemodynamics ; Humans ; Middle Cerebral Artery* ; Moyamoya Disease

No abstract available.
Aneurysm* ; Cerebral Angiography ; Cerebral Arteries* ; Magnetic Resonance Imaging