1,721,075 research outputs found
Intracranial stenting in the treatment of wide-necked aneurysms.
No full textCoil embolization of brain aneurysms
is a well-established alternative to
surgery and the first choice treatment in
many cases. However, the embolization of
giant aneurysms (maximum diameter >10
mm) and wide-necked lesions (maximum
neck diameter > 4 mm or a dome/neck ratio
< 2) carries a high risk of coil migration.
This complication increases the risk of
thromboembolism. Endovascular techniques
commonly used to treat giant and widenecked
aneurysms include remodelling, embolization
with three-dimensional coils and
the combined use of intracranial stents with
coils or Onyx. We report our experience of
stenting associated with coil embolization to
treat wide-necked aneurysms
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Retrospective study of complications arising during cerebral and spinal diagnostic angiography from 1998 to 2003.
No full text
Extracranial self-expandible carotid stenting: a five years retrospective analysis (2000 – April 2006) in a neuroradiological centre.
No full textOver the last decades stent placement
of carotid stenosis has been introduced
as an alterntive to endoarterectomy
in symptomatic and asymptomatic stenosis.
However the major risk of stent placement
appears to be the possibility of periprocedural
embolic strokes due to release debris
during the several phases of endovascular
manipulation. For this reason new techniques
such stenting with cerebral protection
devices being already introduced. The aim
of this work is to present the outcome in our
study population, 5 years experience, that
have been received an alternative method
consisting of unprotected self-expandable
stentig, without pre and post dilatation
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
- …
