A primeira edição deste Congresso Internacional foi organizada pelos médicos da Unidade de AVC e Serviço de Neurorradiologia do CHLC, e foi um sucesso. Contou com mais de 300 inscritos, e mais de 20 palestrantes de renome na área do AVC, nacionais e internacionais. Mais informações em www.lisbonstrokesummit.com

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ADC quantification in basilar artery occlusion as an indicator of clinical outcome after endovascular treatment

Daniela Pereira, Isabel Fragata, Jose ́ Amorim and Joa ̃o Reis

Abstract

Background: Acute ischemic stroke due to basilar artery occlusion (BAO) is associated with a dismal prognosis and, even

though endovascular treatment (EVT) contributed to improvement in clinical outcomes, patient selection is difficult and

frequently results in futile recanalization. We investigated the prognostic value of baseline ADC quantification in patients

with BAO undergoing EVT.

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Conclusions: ADC quantification of ischemic lesions at baseline MRI seems to predict clinical outcome in patients with BAO

undergoing EVT, more importantly than ischemic area or TICI grade.

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Evolution of diffusion tensor imaging parameters after acute subarachnoid haemorrhage: a prospective cohort study.

Fragata I, Canhão P, Alves M, Papoila AL, Canto-Moreira N.

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INTRODUCTION: 

Few studies assessed diffusion tensor imaging (DTI) changes in the acute phase of subarachnoid haemorrhage (SAH). We prospectively evaluated DTI parameters in the acute phase of SAH and 8-10 days after and analysed whether changes could be related to SAH severity or to the development of delayed cerebral ischemia (DCI).

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CONCLUSION: 

ADC and FA values show subtle changes over time in acute SAH at the PLIC and cerebellum although not statistically associated with the severity of SAH or the occurrence of DCI. However, DTI changes occurred mainly in DCI patients, suggesting a possible role of DTI as a marker of DCI.

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Abstract

Background Basilar tip aneurysms (BTA) are multifactorial in origin, with luminal forces playing a major role in their formation. Considering the reduced hemodynamic stress on the basilar apex in the fetal-type posterior cerebral artery (fPCA), we hypothesize that BTA should be less common in patients with this variant.

Conclusions We found a statistically significant association between the absence of fPCA and BTA. Our findings underline the importance of hemodynamic stress in the formation of intracranial aneurysms, and suggest that fPCA is a protective variant for formation of BTA.

Online Junho 2016

Imagem do Ouvido na Patologia Pediátrica - Conceicao, Carla e Diogo, Mariana

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Imagiologia dos SPN na Patologia Pediátrica - Perry da Camara, Catarina, Rios, Cristina e Conceicao, Carla

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Imagem do Pescoço em Pediatria - Diogo, Mariana, Dias, João Lopes e Conceicao, Carla

Junho 2016

Brain Vascular Malformations - Jacinto, João Maia; Fragata, Isabel

Incorrectly Clipped/Coiled Aneurysms - Jacinto, João Maia; Fragata, Isabel

Brain Death - Pamplona, Jaime Leal; Braz, Ana Maria; Nunes, Renato

Pediatric Skull Fractures - Diogo, Mariana Cardoso; Conceicao, Carla

Adult Spinal Ligamentous Injuries - Ramalho, Joana; Castillo, Mauricio

Pediatric Vertebral Fractures - Diogo, Mariana Cardoso; Conceicao, Carla

Pediatric Spinal Ligamentous Injuries - Diogo, Mariana Cardoso; Conceicao, Carla

2015

SUMMARY: In current practice, gadolinium-based contrast agents have been considered safe when used at clinically recommended doses in patients without severe renal insufficiency. The purpose of this review was to summarize the literature on gadolinium-based contrast agents, tying together information on agent stability and animal and human studies, and to emphasize that low-stability agents are the ones most often associated with brain deposition.

Dezembro de 2015

Participação da Drª Carla Conceição como palestrante: "MR spectroscopy in pediatric CNS disorders"

Maio 2015

Basic Principles of Ultrasound Sonography - Braz, Ana Maria, Pamplona, Jaime Leal and Ramalho, Joana N.

Clinical Applications of Ultrasound Vascular Imaging - Braz, Ana Maria, Patricio, Maria Madalena, and Ramalho, Joana N.

Intracranial Computed Tomography Angiography (CTA) - Fragata, Isabel R. and Ramalho, Joana N.

Extracranial Computed Tomography Angiography (CTA) - Baptista, Tiago and Lopes Reis, João

Basic Principles of Time-of-Flight Magnetic Resonance Angiography (TOF MRA) and MRV - Ferreira, Hugo Alexandre Ferreira and Ramalho, Joana N.

Basic Principles of Phase Contrast Magnetic Resonance Angiography (PC MRA) and MRV - Ferreira, Hugo Alexandre Ferreira and Ramalho, Joana N.

Computed Tomography (CT) Perfusion: Basic Principles and Clinical Applications - Joana N. Ramalho and Isabel R. Fragata

2013

O Serviço de Neurorradiologia do CHLC organizou o X Congresso da Sociedade Portuguesa de Neurorradiologia.

Outubro 2014

ABSTRACT

A pseudoaneurysm of the facial artery is a rare event. It results from vessel wall disruption with blood tamponade from the surrounding tissues, and is usually caused by blunt facial trauma, with other etiologies rarely reported. We present two cases of a pseudoaneurysm in the facial artery territory in an odontogenic infection setting, highlighting the importance of computed tomography angiography for diagnosis and hastening treatment by vascular embolization.

Online Julho 2015