BACKGROUND AND PURPOSE Conventional angiography has been historically considered the gold standard for the diagnosis of cervical artery dissection, but MR imaging/MR angiography (MRA) and CT/CT angiography (CTA) are commonly used noninvasive alternatives. The goal of this study was to compare the ability of multidetector CT/CTA and MR imaging/MRA to detect common imaging findings of dissection....

INTRODUCTION Randomized trials comparing invasive treatment of renal artery stenosis with standard pharmacotherapy did not show substantial benefit from revascularization. One of the potential reasons for that may be suboptimal procedure technique. AIM To compare renal stent sizing using two modalities: three-dimensional renal computed tomography angiography (CTA) versus conventional angiogra...

BACKGROUND AND PURPOSE Collateral flow is associated with clinical outcome after acute ischemic stroke and may serve as a parameter for patient selection for intra-arterial therapy. In clinical trials, DSA and CTA are 2 imaging modalities commonly used to assess collateral flow. We aimed to determine the agreement between collateral flow assessment on CTA and DSA and their respective associatio...

OBJECTIVES Intra-arterial digital subtraction angiography (DSA), magnetic resonance angiography (MRA) and computed tomographic angiography (CTA) are imaging modalities used for diagnostic work-up of non-traumatic subarachnoid haemorrhage. The aim of our study was to compare the cost-effectiveness of MRA, DSA and CTA in the first year after the bleed. METHODS A decision model was used to calcu...

Paraclinoid internal carotid artery aneurysms are difficult to treat and difficult to visualize by using DSA, MRA, or surface-rendered 3D-CTA. Because those aneurysms are surrounded by bone, the dural ring (proximal and distal), the optic nerve, the oculomotor nerve, and the cavernous sinus. This report represents the first attempt to assess the verification of volume-rendered 3D-CTA for surgic...

BACKGROUND AND PURPOSE Transient ischemic attack and minor stroke portend a substantial risk of recurrent stroke. MRI can identify patients at high risk for a recurrent stroke. However, MRI is not commonly available as an emergency. If similarly clinically predictive, a CT/CT angiographic (CTA) imaging strategy would be more widely applicable. METHODS Five hundred ten patients with consecutiv...

BACKGROUND AND PURPOSE In acute middle cerebral artery (MCA) stroke, CT angiographic (CTA) source images (CTA-SI) identify tissue likely to infarct despite early recanalization. This pilot study evaluated the impact of recanalization status on clinical and radiologic predictors of patient outcomes. MATERIALS AND METHODS Of 44 patients undergoing CT/CTA within 6 hours of developing symptoms of...

BACKGROUND AND PURPOSE We aimed to determine the diagnostic value of perfusion computed tomography (PCT) and CT angiography (CTA) including CTA source images (CTA-SI) in comparison with perfusion-weighted magnetic resonance imaging (MRI) (PWI) and diffusion-weighted MRI (DWI) in acute stroke <6 hours. METHODS Noncontrast-enhanced CT, PCT, CTA, stroke MRI, including PWI and DWI, and MR angiogr...

OBJECTIVE To explore the usefulness of 320-slice CT angiography (CTA) for evaluating the course of the anterior ethmoidal artery (AEA) and its relationship with adjacent structures by using three-dimensional (3D) spin digital subtraction angiography (DSA) as standard reference. MATERIALS AND METHODS From December 2008 to December 2010, 32 patients with cerebrovascular disease, who underwent b...

BACKGROUND Duplex ultrasonography (DUS) can be used for treatment planning for lower extremity peripheral arterial disease (PAD), but has not replaced contrast-enhanced imaging such as computed tomography angiography (CTA). We assessed DUS-based treatment planning for consistency, confidence, and the value of additional CTA among multinational surgeons. METHODS Data from 12 patients with PAD ...