12 documents found, page 1 of 2
Emergent Endovascular Repair For Primary Aortoenteric Fistula
Marques, Isabel; Vieira, Mário; Ferreira, Ana; Abreu, Rodolfo; Rodrigues, Roger; Vilaça, Luís; Oliveira, JoãoWe report the case of a 64-year-old male with significant cardiac comorbidities who reported three episodes of gastrointestinal bleeding. In the third episode, he presented massive hematemesis, anaemia and hypotension. Despite a standard upper endoscopy, a computed tomography (CT) showed an infrarenal abdominal aortic aneurysm and densification of the aortic fat cover. A primary aortoenteric fistula, with acute...
Quantitative Assessment of the Impact of Geometric Distortions and Their Correc...
Abreu, Rodolfo; Duarte, João ValenteFunctional magnetic resonance imaging (fMRI) data is typically collected with gradient-echo echo-planar imaging (GE-EPI) sequences, which are particularly prone to the susceptibility artifact as a result of B0 field inhomogeneity. The component derived from in-plane spin dephasing induces pixel intensity variations and, more critically, geometric distortions. Despite the physical mechanisms underlying the susce...
The relationship between EEG and fMRI connectomes is reproducible across simult...
Wirsich, Jonathan; Jorge, João; Iannotti, Giannina Rita; Shamshiri, Elhum A.; Grouiller, Frédéric; Abreu, Rodolfo; Lazeyras, François; Giraud, Anne-LiseBoth electroencephalography (EEG) and functional Magnetic Resonance Imaging (fMRI) are non-invasive methods that show complementary aspects of human brain activity. Despite measuring different proxies of brain activity, both the measured blood-oxygenation (fMRI) and neurophysiological recordings (EEG) are indirectly coupled. The electrophysiological and BOLD signal can map the underlying functional connectivity...
Pushing the Limits of EEG: Estimation of Large-Scale Functional Brain Networks ...
Abreu, Rodolfo; Simões, Marco; Castelo-Branco, MiguelFunctional magnetic resonance imaging (fMRI) is the technique of choice for detecting large-scale functional brain networks and to investigate their dynamics. Because fMRI measures brain activity indirectly, electroencephalography (EEG) has been recently considered a feasible tool for detecting such networks, particularly the resting-state networks (RSNs). However, a truly unbiased validation of such claims is ...
Efficacy and Brain Imaging Correlates of an Immersive Motor Imagery BCI-Driven ...
Vourvopoulos, Athanasios; Jorge, Carolina; Abreu, Rodolfo; Figueiredo, Patrícia; Fernandes, Jean-Claude; Bermúdez I Badia, SergiTo maximize brain plasticity after stroke, a plethora of rehabilitation strategies have been explored. These include the use of intensive motor training, motor-imagery (MI), and action-observation (AO). Growing evidence of the positive impact of virtual reality (VR) techniques on recovery following stroke has been shown. However, most VR tools are designed to exploit active movement, and hence patients with low...
Efficacy and brain imaging correlates of an immersive motor imagery BCI-driven ...
Vourvopoulos, Athanasios; Jorge, Carolina; Abreu, Rodolfo; Figueiredo, Patrícia; Fernandes, Jean-Claude; Bermúdez i Badia, SergiTo maximize brain plasticity after stroke, a plethora of rehabilitation strategies have been explored. These include the use of intensive motor training, motor-imagery (MI), and action-observation (AO). Growing evidence of the positive impact of virtual reality (VR) techniques on recovery following stroke has been shown. However, most VR tools are designed to exploit active movement, and hence patients with low...
POST-IMPLANTATION SYNDROME AFTER EVAR
Soares Ferreira, Rita; Bastos Gonçalves, Frederico; Abreu, Rodolfo; Camacho, Nelson; Catarino, Joana; Correia, Ricardo; Ferreira, Maria EmíliaIntroduction: Post-implantation syndrome (PIS) is characterized by fever, flu-like symptoms, leukocytosis and elevation of reactive C protein in the postoperative period of EVAR. The authors aim to estimate the incidence of PIS after EVAR in their institution, identify risk factors and determine the association with clinical events. Materials and Methods: A retrospective study was designed at a tertiary center....
KISSING STENT TECHNIQUE IN THE TREATMENT OF INNOMINATE ARTERY STENOSIS
Camacho, Nelson; Quintas, Anita; Vasconcelos, Leonor; Bastos Gonçalves, Frederico; Alves, Gonçalo; Rodrigues, Gonçalo; Abreu, Rodolfo; Ferreira, RitaIntroduction: The presence of symptomatic atherosclerotic stenosis of the innominate artery is an uncommon condition. The authors report the use of kissing stent technique in right subclavian and common carotid arteries with covered stents and cerebral protection by direct clamping of common carotid artery, as a hybrid endovascular alternative to treat symptomatic stenosis of the innominate artery. Case Report:...
PLANNING, EVAR AND FOLLOWUP WITHOUT CONTRAST IN CHRONIC KIDNEY DISEASE
Soares Ferreira, Rita; Bastos Gonçalves, Frederico; Quintas, Anita; Abreu, Rodolfo; Camacho, Nelson; Ferreira, Maria Emília; Albuquerque e Castro, JoãoIntroduction: Up to 30% of patients undergoing elective EVAR have prior Chronic Kidney Disease (CKD). The contrast-induced nephropathy is a complication of EVAR. It is possible to perform EVAR without contrast or minimize its amount during the procedure, using intraoperative angiography with CO2 and/or IVUS instead of conventional angiography. However, these techniques are not available in most hospitals, unlik...
ENDOVASCULAR EXCLUSION OF A RUPTURED THORACOABDOMINAL ANEURYSM BY “OCTOPUS ENDO...
Soares Ferreira, Rita; Bastos Gonçalves, Frederico; Rodrigues, Gonçalo; Quintas, Ana; Abreu, Rodolfo; Camacho, Nelson; Catarino, JoanaIntroduction: Involvement of the visceral arteries continues to limit the application of endovascular approaches. Open conventional repair is associated with higher morbimortality. With fenestrated and branched endografts, the total endovascular repair is effective, but these devices are not yet widely available and still require a period of customization. So they can’t be used in the majority of urgent cases. ...