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| Registros recuperados: 26 | |
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| Serrão,F.V.; Foerster,B.; Spada,S.; Morales,M.M.B.; Monteiro-Pedro,V.; Tannús,A.; Salvini,T.F.. |
| The present study evaluated functional changes of quadriceps muscle after injury induced by eccentric exercise. Maximal isometric torque of quadriceps and the surface electromyography (root mean square, RMS, and median frequency, MDF) of the vastus medialis oblique (VMO) and vastus lateralis (VL) muscles were examined before, immediately after and during the first 7 days after injury. Serum creatine kinase (CK) levels and magnetic resonance imaging (MRI) were used to identify muscle injury. The subject was used as her own control and percent refers to pre-injury data. Experiments were carried out with a sedentary 23-year-old female. Injury was induced by 4 bouts of 15 maximal isokinetic eccentric contractions (angular velocity of 5º/s; range of motion from... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Isometric torque; Surface electromyography; Quadriceps muscle; Muscle injury; Eccentric exercise; Magnetic resonance imaging. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000600014 |
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| Crippa,J.A.S.; Uchida,R.; Busatto,G.F.; Guimarães,F.S.; Del-Ben,C.M.; Zuardi,A.W.; Santos,A.C.; Araújo,D.; McGuire,P.K.; Graeff,F.G.. |
| Panic disorder is thought to involve dysfunction in the septohippocampal system, and the presence of a cavum septum pellucidum might indicate the aberrant development of this system. We compared the prevalence and size of cavum septum pellucidum in 21 patients with panic disorder and in 21 healthy controls by magnetic resonance imaging. The length of the cavum septum pellucidum was measured by counting the number of consecutive 1-mm coronal slices in which it appeared. A cavum septum pellucidum of >6 mm in length was rated as large. There was no significant difference in the proportion of patients (16 of 21 or 76.2%) and controls (18 of 21 or 85.7%) with a cavum septum pellucidum (P = 0.35, Fisher's exact test, one-tailed), and no members of either... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cavum septum pellucidum; Panic disorder; Neuroimaging; Magnetic resonance imaging. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000300013 |
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| Almeida,J.R.C.; Alves,T.C.T.F.; Wajngarten,M.; Rays,J.; Castro,C.C.; Cordeiro,Q.; Telles,R.M.S.; Fraguas,R.J.; Busatto,G.F.. |
| The relevance of the relationship between cardiac disease and depressive symptoms is well established. White matter hyperintensity, a bright signal area in the brain on T2-weighted magnetic resonance imaging scans, has been separately associated with cardiovascular risk factors, cardiac disease and late-life depression. However, no study has directly investigated the association between heart failure, major depressive symptoms and the presence of hyperintensities. Using a visual assessment scale, we have investigated the frequency and severity of white matter hyperintensities identified by magnetic resonance imaging in eight patients with late-life depression and heart failure, ten patients with heart failure without depression, and fourteen healthy... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Major depressive disorder; Old age; Magnetic resonance imaging; Cardiac failure; Cerebrovascular disease; Cardiovascular risk factors. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000300014 |
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| Guimarães,R.M.; Schaufelberger,M.S.; Santos,L.C.; Duran,F.L.S.; Menezes,P.R.; Scazufca,M.; Gouvea,M.T.V; Busatto,G.F.. |
| Previous cross-sectional magnetic resonance imaging (MRI) studies of healthy aging in young adults have indicated the presence of significant inverse correlations between age and gray matter volumes, although not homogeneously across all brain regions. However, such cross-sectional studies have important limitations and there is a scarcity of detailed longitudinal MRI studies with repeated measures obtained in the same individuals in order to investigate regional gray matter changes during short periods of time in non-elderly healthy adults. In the present study, 52 healthy young adults aged 18 to 50 years (27 males and 25 females) were followed with repeated MRI acquisitions over approximately 15 months. Gray matter volumes were compared between the two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gray matter; Aging; Voxel-based morphometry; Magnetic resonance imaging; Prefrontal cortex; Hippocampus. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000600007 |
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| Bertini,P.J.; Parga,J.R.; Chagas,A.C.P.; Rochitte,C.E.; Ávila,L.F.; Favarato,D.; Luz,P.L. da. |
| The aim of the present study was to evaluate the role of magnetic resonance imaging (MRI) for the non-invasive detection of coronary abnormalities and specifically the remodeling process in patients with coronary artery disease (CAD). MRI was performed in 10 control healthy subjects and 26 patients with angiographically proven CAD of the right coronary (RCA) or left anterior descending (LAD) artery; 23 patients were within two months of acute coronary syndromes, and 3 had stable angina with a positive test for ischemia. Wall thickness (WT), vessel wall area (VWA), total vessel area (TVA), and luminal area (LA) were measured. There were significant increases in WT (mean ± SEM, RCA: 2.62 ± 0.75 vs 0.53 ± 0.15 mm; LAD: 2.21 ± 0.69 vs 0.62 ± 0.24 mm) and in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coronary disease; Coronary remodeling; Magnetic resonance imaging. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000500002 |
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| Registros recuperados: 26 | |
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