نتایج جستجو برای: mca
تعداد نتایج: 4393 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE Transcranial color-coded real-time sonography (TCCS) is a useful tool to evaluate disease of the middle cerebral artery (MCA). This study was undertaken to identify TCCS criteria for the diagnosis of MCA stem and MCA branch occlusions. METHODS TCCS and digital subtraction angiography were performed in 55 consecutive patients with acute stroke: 10 with MCA stem occlusion...
OBJECTIVE In red blood cell (RBC) isoimmunized pregnancies fetal anemia is associated with a hyperdynamic circulation. The aim of the present study was to examine further the possible value of fetal middle cerebral artery peak systolic velocity (MCA-PSV) in the management of affected pregnancies. METHODS A reference range of fetal MCA-PSV with gestation was constructed from the study of 813 n...
Many reports have been published on complications related to middle cerebral artery (MCA) aneurysm surgical clipping procedures. We report an emergency intracranial in situ bypass surgery case which was performed as a rescue procedure after aneurysmal neck laceration during clipping of an MCA large aneurysm. In this case, we performed in situ M3-superficial temporal artery (STA) interposition g...
BACKGROUND This study describes the prevalence, associated anomalies, and demographic characteristics of cases of multiple congenital anomalies (MCA) in 19 population-based European registries (EUROCAT) covering 959,446 births in 2004 and 2010. METHODS EUROCAT implemented a computer algorithm for classification of congenital anomaly cases followed by manual review of potential MCA cases by ge...
Fifty-day-old Sprague-Dawley females received daily feedings of 10 mg of 3-methylcholanthrene (MCA) in sesame oil for 30 days. Controls received only sesame oil. Thyroid activity was estimated using the thyroid secretion rate (TSR) method. TSR of each rat was determined prior to, during, and after MCA treatment. Average TSR of sesame oil controls did not change either during or after feeding. A...
PURPOSE Our goal was to analyze the anatomic similarity between the duplicated middle cerebral artery (MCA) and the accessory MCA and their relationship to the early branches of the MCA. METHODS We reviewed stereoscopic angiograms of duplicated MCAs in four patients and accessory MCAs in four patients with reference to the origin, size, and cortical supply of these anomalous vessels, along wi...
Neutral red staining was evaluated as an acute outcome assessment method in rat models of cerebral ischemia by comparison with histological infarction volume. Fischer 344 rats (n = 48) were used in three different models of middle cerebral artery (MCA) occlusion: proximal MCA occlusion (n = 16), distal MCA occlusion followed by ipsilateral common carotid artery (CCA) occlusion (distal MCA/CCA o...
Distribution, metabolism, and excretion of monochloroacetic acid (MCA) were examined in adult male rats at a subtoxic (10 mg/kg) and a toxic (75 mg/kg) dose. Rats were injected i.v. with [14C]MCA and housed individually. Urine and feces were collected. Animals were euthanized at different time intervals after dosing and tissues procured. Radioactivity in aliquots showed very rapid distribution ...
BACKGROUND Asians have higher frequency of intracranial arterial stenosis. The present study aimed to compare the clinical features and outcomes of ischemic stroke patients with and without middle cerebral artery (MCA) stenosis, assessed by transcranial sonography (TCS), based on the Taiwan Stroke Registry (TSR). METHODS Patients with acute ischemic stroke or transient ischemic attack registe...
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