1,720,964 research outputs found
The diabetic foot: Diagnostic imaging in two unusual cases | La diagnostica per immagini nel piede diabetico Descrizione di due casi insoliti
No full textThe Value of secondary MRI signs of an ACL lesion : comparison with arthroscopy
No full textPrimary MRI signs are sometimes insufficient for the diagnosis of anterior cruciate ligament (ACL) tears and the observation of secondary signs (impingement of the tibial plateau, augmented PCL curvature, anterior tibia] dislocation) may be of great assistance. This paper assesses the sensitivity and specificity of the primary and secondary MRI signs in the light of the arthroscopic findings in 50 patients with suspected ACL damage. MR imaging was conducted with specific surface coils and weighted T1 and T2 spin echo and gradient echo sequences. Sensitivity and specificity for the primary signs were 94% and 92%. The corresponding values for the secondary signs were: impingement 88% and 100%; augmented PCL curvature 70% and 89%; anterior dislocation 31% and 98%. These results indicate that MRI diagnosis of ACL tears based on primary signs (morphology and signal intensity) is more sensitive and specific. Diagnostic accuracy can be considerably improved in doubtful cases by resorting to the highly specific secondary signs. (C) 2001, Editrice Kurtis
An evaluation of the carotid bifurcation and of the intracranial circle by angio-spiral computed tomography
No full textHepatic artery pseudoaneurysm in von Willebrand's disease. Eur Radiol. 2003 Aug;13(8):1913-5. Epub 2002 Sep 3
No full textWe report a case of hepatic artery pseudoaneurysm which occurred in a patient with von Willebrand's disease. The patient presented with upper abdominal pain and diagnosis was made by US and CT examinations. This case emphasizes the possible association between an established coagulation disorder and pseudoaneurysm. The patient was successfully treated by coil embolizatio
An evaluation of the carotid bifurcation and of the intracranial circle by angio-spiral computed tomography
No full text
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
Pyriformis muscle syndrome: CT/MR findings in the percutaneous therapy with botulinic toxin
No full textThe aim of our study was to evaluate the diagnostic capabilities of computed tomography (CT) and magnetic resonance (MR) imaging in pyriformis syndrome (PS) and the long-term outcomes of CT-guided percutaneous treatment with botulinum. PS is a cause of sciatica and disability. The pain is usually increased by muscular contraction, palpation or prolonged sitting
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
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