1,720,975 research outputs found
[Acute myocardial infarction in a 13-year-old boy with Duchenne's disease].
No full textA 13-year-old boy with Duchenne's muscular dystrophy suffered an acute myocardial infarction as shown by typical electrocardiographic and enzyme changes, and by the results of radionuclide studies. this is the third reported case of the acute myocardial infarction in a patient with Duchenne's muscular dystrophy
Coronary angioplasty in chronic total occlusion: angiography results, complications, and predictive factors
No full textDiabete non insulino dipendente e funzionalità ventricolare sinistra in coronaropatici.
No full textDiagnosi differenziale tra cardiomiopatia dilatativa primaria e ischemica. Prospettive di terapia.
No full textInvasive and echocardiographic evaluation of non-Q myocardial infarction with isolated stenosis of descending anterior coronary artery.
No full textTechnetium-99m-sestamibi SPECT to detect restenosis after successful percutaneous coronary angioplasty.
No full textThis study evaluated the accuracy of 99mTc SPECT in predicting restenosis after primary successful PTCA.
METHODS: Thirty-seven patients with equivocal symptom-limited exercise stress testing were evaluated. All patients underwent separate day exercise-rest 99mTc-sestamibi SPECT. The perfusion studies were evaluated using three different methods of analysis: visual inspection, semiquantitative and quantitative polar map analysis. The perfusion studies were interpreted in absence of a pre-PTCA scan. All patients underwent a control coronary angiography within 1 mo.
RESULTS: Sensitivity and specificity of 99mTc-sestamibi SPECT in predicting restenosis were 87.5-78%, 50-65% and 75-74% for visual inspection, semiquantitative and quantitative polar map analysis, respectively. Sensitivity and specificity related to the vascular territories were: LAD territory 93-73% (qualitative analysis), 53-60% (semiquantitative analysis), 80-67% (quantitative analysis); LCX territory 83-100% (qualitative analysis); and 33-100% (semiquantitative analysis), 67-100% (quantitative analysis); and RCA territory 67-80% (qualitative analysis), 67-60% (semiquantitative analysis), 67-80% (quantitative analysis).
CONCLUSION: These data suggest that 99mTc-sestamibi SPECT is a useful noninvasive tool in the follow-up evaluation of patients who have undergone angiographically successful coronary angioplasty even in the absence of a pre-PTCA perfusion study
Does 99m Tc-Sestamibi Gated-SPECT provide additional information over ungated-sestamibi and 201-Tl reinjection imaging in viability assessment?
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
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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