PURPOSE To investigate the cause and clinical significance of arterial enhancement (AE) in contrast-enhanced T1-weighted MR examinations after acute cerebral ischemia. METHODS Contrast MR examinations and conventional angiograms of 17 patients studied following an acute ischemic event or an internal carotid occlusion were retrospectively reviewed. MR and angiographic studies were performed wi...

BACKGROUND AND PURPOSE The roles of DTI and dynamic susceptibility contrast-enhanced-PWI in predicting the angiographic vascularity of meningiomas have not been studied. We aimed to investigate if these 2 techniques could reflect the angiographic vascularity of meningiomas. MATERIALS AND METHODS Thirty-two consecutive patients with meningiomas who had preoperative dynamic susceptibility contr...

BACKGROUND AND PURPOSE The effects of aneurysm treatment modality (clipping or coiling) on the incidence of cerebral vasospasm and infarction after subarachnoid hemorrhage have not been clearly defined. We hypothesized that there may be a difference in angiographic and clinical vasospasm, cerebral infarction, and clinical outcome between patients undergoing clipping compared to coiling. METHO...

OBJECTIVE Cardiac syndrome X (CSX) is defined by an angina-like chest pain, a positive response to stress testing and normal or near normal coronary angiogram. We evaluated the angiographic findings in patients with cardiac syndrome X and compared it with myocardial perfusion scintigraphy findings. PATIENTS AND METHODS The study included 39 females aged 40-58 years (mean, 49.79 +/- 4.69 [SD] ...

BACKGROUND AND PURPOSE Noninvasive characterization of spinal vascular lesions is essential for guiding clinical management, and several MR angiographic techniques have been applied in the past with variable results. The purpose of our study was to assess the potential of a dynamic 3D contrast-enhanced MR angiographic sequence to characterize spinal vascular lesions and to identify their arteri...

BACKGROUND Intracoronary ultrasound (IVUS) has been used as an adjunctive method in order to optimize implantation of stents. However, the impact of this method in some outcomes is controversial. OBJECTIVE To systematically review the impact of routine IVUS-guided coronary stent as compared to angiographic-guided, on clinical and angiographic outcomes. METHODS A search of databases (MEDLINE...