1,829 research outputs found
sj-docx-1-tae-10.1177_20420188241229540 – Supplemental material for Role of epicardial adipose tissue in diabetic cardiomyopathy through the lens of cardiovascular magnetic resonance imaging – a narrative review
No full textSupplemental material, sj-docx-1-tae-10.1177_20420188241229540 for Role of epicardial adipose tissue in diabetic cardiomyopathy through the lens of cardiovascular magnetic resonance imaging – a narrative review by Sindhoora Kotha, Sven Plein, John P. Greenwood and Eylem Levelt in Therapeutic Advances in Endocrinology and Metabolism</p
Sex and Heart Failure with Preserved Ejection Fraction: From Pathophysiology to Clinical Studies
No full textHeart failure with preserved ejection fraction (HFpEF) represents the most frequent form of heart failure in women, with almost two-fold higher prevalence than in men. Studies have revealed sex-specific HFpEF pathophysiology, and suggested the possibility of a sex-specific therapeutic approach in these patients. Some cardiovascular risk factors, such as arterial hypertension, obesity, diabetes mellitus, coronary artery disease, atrial fibrillation, and race, show specific features that might be responsible for the development of HFpEF in women. These risk factors are related to specific cardiovascular changes—left ventricular diastolic dysfunction and hypertrophy, ventricular–vascular coupling, and impaired functional capacity—that are related to specific cardiac phenotype and HFpEF development. However, there is no agreement regarding outcomes in women with HFpEF. For HFpEF, most studies have found higher hospitalization rates for women than for men. Mortality rates are usually not different. Pharmacological treatment in HFpEF is challenging, along with many unresolved issues and questions raised. Available data on medical therapy in patients with HFpEF show no difference in outcomes between the sexes. Further investigations are necessary to better understand the pathophysiology and mechanisms of HFpEF, as well as to improve and eventually develop sex-specific therapy for HFpEF
Three-dimensional balanced steady state free precession myocardial perfusion cardiovascular magnetic resonance at 3T using dual-source parallel RF transmission: initial experience
No full textBackground: The purpose of this study was to establish the feasibility of three-dimensional (3D) balanced steady-state-free-precession (bSSFP) myocardial perfusion cardiovascular magnetic resonance (CMR) at 3T using local RF shimming with dual-source RF transmission, and to compare it with spoiled gradient echo (TGRE) acquisition.
Methods: Dynamic contrast-enhanced 3D bSSFP perfusion imaging was performed on a 3T MRI scanner equipped with dual-source RF transmission technology. Images were reconstructed using k-space and time broad-use linear acquisition speed-up technique (k-t BLAST) and compartment based principle component analysis (k-t PCA).
Results: In phantoms and volunteers, local RF shimming with dual source RF transmission significantly improved B1 field homogeneity compared with single source transmission (P = 0.01). 3D bSSFP showed improved signal-to-noise, contrast-to-noise and signal homogeneity compared with 3D TGRE (29.8 vs 26.9, P = 0.045; 23.2 vs 21.6, P = 0.049; 14.9% vs 12.4%, p = 0.002, respectively). Image quality was similar between bSSFP and TGRE but there were more dark rim artefacts with bSSFP. k-t PCA reconstruction reduced artefacts for both sequences compared with k-t BLAST. In a subset of five patients, both methods correctly identified those with coronary artery disease.
Conclusion: Three-dimensional bSSFP myocardial perfusion CMR using local RF shimming with dual source parallel RF transmission at 3T is feasible and improves signal characteristics compared with TGRE. Image artefact remains an important limitation of bSSFP imaging at 3T but can be reduced with k-t PCA
Sven Lidman: Silfverstååhl i den judiska finansvärlden
No full textSven Lidman was a Swedish author who had a great interest in the industrialization and financial growth in Sweden. In his novel Köpmän och krigare (1911) the noble family Silfverstååhl encounter what Lidman calls “the Jewish finance world”. The response to his work was of mixed character, including response of anti-Semitic character
Fresh fish and amazing trees
No full textMeet John Kilaka, author and illustrator of children’s books and Tingatinga artist in a conversation with Sven Hallonsten.</p
Phylogenetic diversity and the structure of host-epiphyte interactions
No full textThis repository contains code, and data used in the paper "Phylogenetic diversity and the structure of host-epiphyte interactions!", by Marcio R. Pie, Fernanda S. Caron, Sven P. Batke, Johan Reyes-Chávez, Thom Dallimore et al. Use the following link: https://github.com/fernandacaron/epi_evo
All dödlighets sång och skrian : Studier i Sven Rosendahls naturprosa
No full textPär-Yngve Andersson,”All dödlighets sång och skrian”: Studier i Sven Rosendahls naturprosa (The song and scream of all mortality: Studies in the nature writing of Sven Rosendahl)Sven Rosendahl (1913-1990) was an author of novels as well as of various books about landscape and animals. However, his nature writing has not been devoted much attention by critics or literary scholars. Rosendahl himself expressed at many times his dissatisfaction with this. This study is exclusively devoted to his nature writing, and the aim is thereby to fill a disturbing lacuna in Swedish literary research. Several of his most important books are analysed carefully, from Räven från Krackberget (1941) to Från himmelens fåglar… (1968). Major importance is attached to analyses of style and narrative technique, and issues concerning genres and borders between fact and fiction in this kind of nature writing are discussed. I also refer to researchers in environmental literature and philosophers interested in experiences of nature. Detailed lyrical description is regarded as a kind of basis in Rosendahl’s artful language, but his nature writings are at the same time existential literature. Man is clearly seen as a part of nature, but seems to be the only specie conscious of its own mortality. The author is considering man’s place in this world, among all the other species. Confidence in nature’s reiteration is played off against the mortality of the individual. In later parts of the authorship, his awareness about environmental pollution is clearly evident. It even threats the genre of nature writing itself.</p
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