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| Registros recuperados: 26 | |
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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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| Inui, Tomohiro; Yamada, Kazutaka; Itoh, Megumi; Yanagawa, Masashi; Higuchi, Tohru; Watanabe, Akiko; Imamura, Yui; Urabe, Mako; Sasaki, Naoki. |
| Temporohyoid osteoarthropathy (THO) is characterized by progressive osseous proliferation of the stylohyoid and petrous temporal bones. Generally, diagnosis is confirmed by guttural pouch endoscopy and skull radiography. In the present case, computed tomography (CT) and magnetic resonance imaging (MRI) were performed in a 6-month-old Thoroughbred foal showing signs of head tilt and unilateral ear droop, consistent with the presence of a vestibular disease and unilateral facial paralysis. CT revealed bony fusion and proliferation of the right temporohyoid joint, while MRI revealed that otitis media was responsible for THO. In conclusion, this report suggests that CT and MRI provide a more concrete diagnosis and better understandings of the mechanism of THO... |
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Palavras-chave: Computed tomography; Magnetic resonance imaging; Otitis media; Temporohyoid osteoarthropathy. |
| Ano: 2017 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4571 |
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| Uchida,R.R.; Del-Ben,C.M.; Santos,A.C.; Araújo,D.; Crippa,J.A.; Guimarães,F.S.; Graeff,F.G.. |
| Reported neuroimaging studies have shown functional and morphological changes of temporal lobe structures in panic patients, but only one used a volumetric method. The aim of the present study was to determine the volume of temporal lobe structures in patients with panic disorder, measured by magnetic resonance imaging. Eleven panic patients and eleven controls matched for age, sex, handedness, socioeconomic status and years of education participated in the study. The mean volume of the left temporal lobe of panic patients was 9% smaller than that of controls (t21 = 2.37, P = 0.028). In addition, there was a trend (P values between 0.05 and 0.10) to smaller volumes of the right temporal lobe (7%, t21 = 1.99, P = 0.06), right amygdala (8%, t21 = 1.83, P =... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Panic disorder; Temporal lobe; Magnetic resonance imaging; Volumetric analysis. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000700014 |
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| Song,G.; Luo,T.; Dong,L.; Liu,Q.. |
| Solution reflux and edema hamper the convection-enhanced delivery of the standard treatment for glioma. Therefore, a real-time magnetic resonance imaging (MRI) method was developed to monitor the dosing process, but a quantitative analysis of local diffusion and clearance parameters has not been assessed. The objective of this study was to compare diffusion into the extracellular space (ECS) at different stages of rat C6 gliomas, and analyze the effects of the extracellular matrix (ECM) on the diffusion process. At 10 and 20 days, after successful glioma modeling, gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) was introduced into the ECS of rat C6 gliomas. Diffusion parameters and half-life of the reagent were then detected using MRI, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: C6 glioma model; Extracellular space; Magnetic resonance imaging; Rats. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000700610 |
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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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| Blay, Carole; Haffray, Pierrick; Bugeon, Jérôme; D’ambrosio, Jonathan; Dechamp, Nicolas; Collewet, Guylaine; Enez, Florian; Petit, Vincent; Cousin, Xavier; Corraze, Geneviève; Phocas, Florence; Dupont-nivet, Mathilde. |
| One of the top priorities of the aquaculture industry is the genetic improvement of economically important traits in fish, such as those related to processing and quality. However, the accuracy of genetic evaluations has been hindered by a lack of data on such traits from a sufficiently large population of animals. The objectives of this study were thus threefold: (i) to estimate genetic parameters of growth-, yield-, and quality-related traits in rainbow trout (Oncorhynchus mykiss) using three different phenotyping technologies [invasive and non-invasive: microwave-based, digital image analysis, and magnetic resonance imaging (MRI)], (ii) to detect quantitative trait loci (QTLs) associated with these traits, and (iii) to identify candidate genes present... |
| Tipo: Text |
Palavras-chave: Aquaculture; Fat content; Flesh colour; Magnetic resonance imaging; Fatmeter; Computer vision; Genetic correlations; QTL. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00682/79410/81958.pdf |
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| Davenel, Armel; Gonzalez, Ricardo; Suquet, Marc; Quellec, Stephane; Robert, Rene. |
| Previous studies have shown that magnetic resonance imaging is a very appropriate non-invasive technique for quantifying the growth of somatic and gonadic tissues and sex determination in the Pacific oyster, Crassostrea gigas. Despite a thinner gonad, harder to distinguish than that of the Pacific oyster, we showed in this study that it was possible to distinguish and quantify the development of the gonad of the European flat oyster, Ostrea edulis, using a 3D MRI sequence with a suitable finer resolution. Compared to T2-weighted images, theoretically the most appropriate for good anatomical description, T1-weighted images were more suited to gonad observation. The gonad development was quantified by the number of voxels with higher grey level. Larvae were... |
| Tipo: Text |
Palavras-chave: Oyster; Ostrea edulis; Gonad development; Magnetic resonance imaging. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00014/12508/9363.pdf |
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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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| Shimbo, Genya; Tagawa, Michihito; Oohashi, Eiji; Yanagawa, Masashi; Miyahara, Kazuro. |
| A 1-year-old neutered male Pekingese was presented for evaluation and further treatment of cluster seizures. The dog had behavioral abnormalities, and a prosencephalic lesion was suspected following neurological examination. The dog showed signs of learning difficulty. Magnetic resonance imaging of the brain revealed a remarkably smooth cerebral cortex with a reduced number of gyri, as well as a cystic lesion associated with the quadrigeminal cistern. A diagnosis of lissencephaly, concurrent with a quadrigeminal cisternal cyst, was made. High-dose and multiple anticonvulsants were necessary to control the seizures. This is the first report of lissencephaly in a Pekingese. © 2017 The Japanese Society of Veterinary Science. |
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Palavras-chave: Lissencephaly; Magnetic resonance imaging; Pekingese. |
| Ano: 2017 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4564 |
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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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| Hatt, Philippe-jacques; Davenel, Armel; Eliat, Pierre-antoine; Quellec, Stephane. |
| To make a preliminary exploration of the possibilities and limits of magnetic resonance imaging (MRI) for assessing body growth and gonad development of the Pacific oyster, Crassostrea gigas, individual monitoring was conducted on diploid and triploid oysters in their second year, maintained from February to October in a pond on the French Atlantic coast. Magnetic resonance imaging was done on each oyster on five dates during the study period. From these images, variations in the volumes of the flesh, digestive gland-gonad and adductor muscle, and the surface of the gills were measured over time. Apart from the well known differences between diploids and triploids related to maturation of gametes, other original observations of assessing growth were made... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Oyster; Gonad development; Growth; Magnetic resonance imaging; MRI. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6872.pdf |
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| Vidal,José E.; Spichler,Anne; Oliveira,Augusto C. P. de; Lomar,André Villela. |
| Toxoplasmic encephalitis is the most common cerebral mass lesion in patients with AIDS. The definitive diagnosis requires direct demonstration of the tachyzoite form of Toxoplasma gondii in cerebral tissue. The presumptive diagnosis is based on serology, clinical and radiological features, and on response to anti-Toxoplasma therapy. Typically, patients have a subacute presentation of focal neurological signs, with multiple lesions in computed tomography (CT) or magnetic resonance imaging (MRI). However, the neurological and CT scan spectrum is broad. We report a case of toxoplasmic encephalitis in a heterosexual man without prior history of HIV infection. He was admitted with four days of headache, confusion, and new onset of seizures. His brain CT... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Toxoplasmic encephalitis; Computadorized tomography; Magnetic resonance imaging; Acquired immunodeficiency syndrome. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000100010 |
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| Hu,Jia; Zhou,Wei; Zhou,Zhiming; Yang,Qian; Xu,Junfeng; Dong,Wanli. |
| In this study, we aimed to explore the relationship among miR-22, deep cerebral microbleeds (CMBs), and post-stroke depression (PSD) 1 month after ischemic stroke. We consecutively recruited 257 patients with first-ever and recurrent acute cerebral infarction and performed PSD diagnosis in accordance with the Diagnostic and Statistical Manual IV criteria for depression. Clinical information, assessments of stroke severity, and imaging data were recorded on admission. We further detected plasma miR-22 using quantitative PCR and analyzed the relationship among miR-22, clinical data, and PSD using SPSS 23.0 software. Logistic regression showed that deep (OR=1.845, 95%CI: 1.006-3.386, P=0.047) and brain stem CMBs (OR=2.652, 95%CI: 1.110–6.921, P=0.040), as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Depression; MicroRNA; Stroke; Cerebral microbleeds; Magnetic resonance imaging. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500611 |
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| Registros recuperados: 26 | |
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