This study examined the application of 64-slice spiral double-low computed tomography (CT) to evaluate the degree of coronary artery stenosis. We examined 45 patients with coronary heart disease by 64-slice spiral double-low CT and coronary angiography (CAG) to determine CT accuracy in evaluating coronary artery stenosis. Imaging analysis from 64-slice spiral double-low CT identified 199 segmen...

neurological manifestation may complicate takayasu arteritis (ta). a 23-year-old girl with sudden onset of vision loss was admitted to hospital. her brain mri showed abnormal t2-signal hyperintensity and visual evoked potential revealed prolonged p100 latency. consequently, optic neuritis was diagnosed. a review on history of dizziness, falling, and weak pulses of upper extremities led to more ...

OBJECTIVES RNF213 p.R4810K was identified as a susceptibility variant for moyamoya disease in Asia and non-moyamoya intracranial artery stenosis/occlusion disease in Japan and Korea recently. The occurrence of this variant was evaluated in patients with non-moyamoya intracranial artery stenosis/occlusion disease in China. METHODS Two study populations were used in this study. One was recruite...

background: although the risk factors of ischemic strokes are well defined, there is slight information about their relations with the etiologies of ischemic strokes. this study investigated the distribution of ischemic stroke risk factors and their connections to diverse etiologies of cerebrovascular attack (cva) and specific ischemic regions of brain. methods: in this cross sectional study , ...

BACKGROUND AND OBJECTIVES Soluble CD40 ligand (sCD40L) is a marker of platelet activation; whether platelet activation occurs in the setting of renal artery stenosis and stenting is unknown. Additionally, the effect of embolic protection devices and glycoprotein IIb/IIIa inhibitors on platelet activation during renal artery intervention is unknown. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENT...

Fig. 2 Significant Renal Artery Stenosis Selective DSA demonstrates a significant renal artery stenosis (A, TSPG = 48mmHg. Streamlines discontinue at the stenosis indicating a significant luminal narrowing (B). Please note flow signal distal to the stenosis indicating high degree stenosis but excluding occlusion. Non-invasive Assessment of Transstenotic Pressure Gradients Utilizing 3D Phase Con...

CT scan and MRI are useful for evaluating the question of cerebral infarction which may occur as a consequence of carotid artery stenosis. Infarctions related to internal carotid artery stenosis may be deep, subcortical, or cortical. However, carotid stenosis may exist in the absence of infarction on MRI and CT. The definition of asymptomatic or symptomatic carotid artery stenosis is based upon...

BACKGROUND Renal artery stenosis (RAS) is a common finding in patients undergoing coronary angiography. We designed this study to look for the frequency and any predictors of renal artery stenosis in patients with coronary artery disease (CAD). METHODS A total of 201 consecutive patients with CAD confirmed by coronary angiography underwent an abdominal aortogram in the same sitting to screen ...

The aim of the present study was to investigate the correlation between the degree of coronary artery stenosis determined by digital subtraction angiography (DSA) and infarcted segments detected by delayed enhancement magnetic resonance imaging (DE-MRI). DE-MRI and DSA were performed in 40 patients with coronary artery disease. The number of myocardial segments with infarction, the transmural e...

One hundred twenty eight cervical carotid arteriograms were twice viewed by three readers for the evaluation of atherosclerotic disease at the carotid bifurcation. Stenoses were estimated using calipers to the nearest 5% and lesions were qualitatively characterized as smooth, irregular, or ulcerated. The intraobserver correlation coefficient between estimates of percent stenosis was .94 overall...