نتایج جستجو برای: brain mra

تعداد نتایج: 476375  

Journal: :Stroke 2012
Pascale Lavoie Jean-Luc Gariépy Geneviève Milot Steve Jodoin Fernand Bédard Francois Trottier René Verreault

BACKGROUND AND PURPOSE The purpose of this study was to estimate the performance measures of MR angiography (MRA) in the diagnosis of aneurysm residual flow after coil occlusion. METHODS Patients having at least 1 cerebral aneurysm treated with coil occlusion were prospectively and consecutively enrolled. Time of flight and contrast-enhanced MRA were performed the same day of the DSA follow-u...

Journal: :Journal of the American College of Cardiology 2002
Gerald F Greil Andrew J Powell Hans P Gildein Tal Geva

OBJECTIVE The goal of this study was to evaluate the diagnostic value of gadolinium (Gd)-enhanced three-dimensional (3D) magnetic resonance angiography (MRA) in patients with congenital and acquired anomalies of the pulmonary and systemic veins. BACKGROUND Gadolinium-enhanced 3D MRA is a fast magnetic resonance imaging technique that has shown great promise in the evaluation of large and medi...

Journal: :AJNR. American journal of neuroradiology 2007
M Mull R J Nijenhuis W H Backes T Krings J T Wilmink A Thron

BACKGROUND AND PURPOSE The purpose of this work was to study the validity of MR angiography (MRA) for identification of spinal arteriovenous (AV) abnormalities. MATERIALS AND METHODS Thirty-four consecutive patients with suspicion of spinal vascular abnormalities underwent digital subtraction angiography (DSA) after MRA. The level and side of the suspected spinal dural arteriovenous fistula (...

Journal: :British journal of sports medicine 2005
C-C Chen Y-M Pai R-F Wang T-L Wang C-F Chong

Isolated third cranial nerve palsies in head trauma patients can be the result of direct or indirect damage to the oculomotor nerve. They are usually associated with severe head trauma. We reported a case of isolated oculomotor nerve palsy associated with minor head injury. No initial loss of consciousness was recalled. Computed tomography (CT), magnetic resonance imaging (MRI), and magnetic re...

Journal: :Annals of vascular diseases 2010
Kunihiro Yoshioka Ryoichi Tanaka

Magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) play a critical role in diagnosing aortic disease such as aortic dissection and aneurysm. Additionally, the advent of contrast-enhanced MRA has allowed MRA to advance markedly and several new imaging techniques to emerge as well. While computed tomography (CT) angiography using multidetector-row CT is a significant innova...

2016
Carmen Sebastià Alejandro D. Sotomayor Blanca Paño Rafael Salvador Marta Burrel Albert Botey Carlos Nicolau

PURPOSE To evaluate the accuracy of unenhanced magnetic resonance angiography (U-MRA) using balanced steady-state free precession (SSFP) sequences with inversion recovery (IR) pulses for the evaluation of renal artery stenosis. MATERIALS AND METHODS U-MRA was performed in 24 patients with suspected main renal artery stenosis. Two radiologists evaluated the quality of the imaging studies and t...

2016
Krishnamoorthy Thamburaj Kevin Cockroft Amit K Agarwal Shyam Sabat Paul Kalapos

AIM To identify the effective magnetic resonance angiography (MRA) technique to monitor intracranial aneurysms treated with stent-assisted coiling. MATERIALS AND METHODS Retrospective analysis of various MRA techniques was performed in 42 patients. Three neuroradiologists independently compared non-contrast time of flight (ncTOF) MRA of the head, contrast-enhanced time of flight (cTOF) MRA of...

2011

Background: Magnetic resonance arthrography is the current method of choice for investigating patients with a clinical diagnosis of femoroacetabular impingement prior to performing hip arthroscopy. The aim of our study was to assess the efficacy of this investigation by comparing the findings of MR arthrogram with those found at arthroscopy, with reference to labral tears and chondral damage. M...

Journal: :European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery 2000
J Wikström A Holmberg L Johansson A M Löfberg O Smedby S Karacagil H Ahlström

PURPOSE to compare gadolinium-enhanced magnetic resonance angiography (Gd-MRA), digital subtraction angiography (DSA) and duplex of the iliac arteries with intra-arterial pressure gradient measurement as the reference method. MATERIALS AND METHODS Gd-MRA, DSA and duplex examinations of the iliac arteries were performed in 30 patients (60 arteries) with lower-limb arterial occlusive disease. I...

2012
Eftychia Z. Kapsalaki Christos D. Rountas Kostas N. Fountas

Intracranial aneurysms constitute a common pathological entity, affecting approximately 1-8% of the general population. Their early detection is essential for their prompt treatment. Digital subtraction angiography is considered the imaging method of choice. However, other noninvasive methodologies such as CTA and MRA have been employed in the investigation of patients with suspected aneurysms....

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