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Dissertations / Theses on the topic 'Cerebral arteries'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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1

Pierre, Lisa Natalie. "Endothelin receptors in human small coronary and cerebral arteries." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624843.

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2

Storer, Kingsley Paul School of Medicine UNSW. "Cerebral arteriovenous malformations: molecular biology and enhancement of radiosurgical treatment." Awarded by:University of New South Wales. School of Medicine, 2006. http://handle.unsw.edu.au/1959.4/31942.

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Object Rupture of intracranial arteriovenous malformations is a leading cause of stroke in children and young adults. Treatment options include surgery and highly focused radiation (stereotactic radiosurgery). For large and deep seated lesions, the risks of surgery may be prohibitively high, while radiosurgery has a disappointingly low efficacy and long latency. Radiosurgery carries the most promise for significant advances, however the process by which radiosurgery achieves obliteration is incompletely understood. Inflammation and thrombosis are likely to be important in the radiation res

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3

Corrêa, José Fernando Guedes. ""Dificuldades no tratamento microcirúrgico dos aneurismas gigantes e complexos da circulação anterior do polígono de Willis: proposta de escala técnica prognóstica"." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/5/5132/tde-27092005-145748/.

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Para desenvolver e avaliar a aplicabilidade de uma escala técnica prognostica das dificuldades no tratamento microcirúrgico dos aneurismas gigantes e complexos da circulação anterior do polígono de Willis, 50 lesões foram operadas. Um valor numérico foi dado a cada uma das 8 variáveis da escala. Somando-se os valores para cada variável, uma nota (de 1 a 14) foi obtida, para cada uma das 50 cirurgias. Dois grupos, portanto, foram definidos: cirurgia difícil (nota de 1 a 8) e cirurgia extremamente difícil (nota de 9 a 14). Foi feita análise estatística comparando-se os 2 grupos em relação a dive

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4

Almeida, Lygia Maria de. "Sistematização das artérias da base do encéfalo, distribuição e territórios das artérias cerebrais rostral, média e caudal e da artéria mesencefálica na superfície do encéfalo em jacaré do papo-amarelo (Cayman latirostris)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/22679.

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Foram utilizados 30 encéfalos de jacaré do papo-amarelo (Cayman latirostris), injetados com látex, corado em vermelho, com objetivo de sistematizar e descrever a distribuição e territórios das artérias carótidas internas e suas principais ramificações na superfície do encéfalo. As artérias carótidas internas apresentaram uma anastomose intercarótica e a artéria oftálmica interna. Na altura da hipófise estas se dividiram num ramo rostral e num curto ramo caudal, que continuou naturalmente como artéria cerebral caudal. O ramo rostral formou a rede da artéria cerebral média, a artéria cerebral ro

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5

Hoiland, Ryan Leo. "Carbon dioxide mediated vasomotion of extra-cranial cerebral arteries : a role for prostaglandins?" Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54108.

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Cerebrovascular regulation during perturbations in arterial CO₂ is thought to occur solely at the level of the pial vessels. However, recent evidence implicates large extra-cranial cerebral blood vessels in this regulatory process. Although the mechanisms governing CO₂ mediated vasomotion remain unclear, animal and human studies support a large role of prostaglandins. Thus, we examined two hypotheses: 1) vasomotion of the internal carotid artery (ICA) would occur in response to both hyper and hypocapnia; and 2) pharmacological inhibition of prostaglandin synthesis with Indomethacin (INDO; a no

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6

Dhital, Kumud Kumar. "Perivascular innervation of cerebral arteries and vasa nervorum : changes in development and disease." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322304.

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7

Mathewson, Alastair Munro. "The modulation of no-mediated in porcine cerebral arteries by inducible nitric oxide synthase." Thesis, University of Strathclyde, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269936.

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8

Mughal, Amreen. "Regulation of Vascular Tone in Cerebral and Coronary Arteries by Apelin/APJ Receptor Mechanisms." Diss., North Dakota State University, 2018. https://hdl.handle.net/10365/27847.

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The peptide, apelin, is expressed in fat cells, endothelial cells, and CNS neurons. Increasing evidence (e.g. inotropic and vasomotor effects) supports a role for apelin in the regulation of the cardiovascular system. This research aimed to understand vascular effects of apelin and bridge gaps in the knowledge about apelin-induced effects on different vascular beds i.e. cerebral and coronary arteries. My first objective was to assess apelin-induced vascular effects in cerebral arteries. Based on current data, one could conclude that apelin by itself has no effects on vasomotor tone of cerebral

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9

Miller, Alastair Leslie. "Investigation of the mechanisms underlying the myogenic response in resistance blood vessels from the rat cerebral vasculature." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322245.

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10

Sutherland, Brad Alexander, and n/a. "Heme oxygenase and the use of tin protoporphyrin in hypoxia-ischaemia-induced brain damage : mechanisms of action." University of Otago. Department of Pharmacology & Toxicology, 2009. http://adt.otago.ac.nz./public/adt-NZDU20090119.150318.

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Stroke is the third largest cause of death, and the leading cause of disability worldwide. Treatments are sought to reduce mortality, and increase survival time following an ischaemic stroke. Hypoxia-ischaemia (HI) is the combination of cerebral ischaemia and global hypoxia that can lead to neuronal damage, particularly perinatally. The complex neurodegenerative cascade following ischaemic stroke and HI activates many stress pathways, including heme oxygenase (HO). HO metabolises free heme to release iron, carbon monoxide, and biliverdin, which is subsequently metabolised to bilirubin. This th

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11

Clark, Angela. "A study of the mechanisms involved in the responses of cerebral arteries to 5-hydroxytryptamine." Thesis, University of Southampton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316053.

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12

Goltz, Laura Ver. "Sistematização, distribuição e territórios das artérias cerebrais rostral, média e caudal na superfície do encéfalo em nutria (Myocastor coypus)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/165877.

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Foram utilizados 30 encéfalos de nutria (Myocastor coypus), injetados com látex, corado em vermelho, com objetivo de sistematizar e descrever a distribuição e territórios das artérias cerebrais rostral, média e caudal e suas ramificações na superfície dos hemisférios cerebrais e no tronco encefálico. A artéria carótida interna apresentou-se atrofiada, sendo o encéfalo vascularizado exclusivamente pelo sistema vértebro-basilar. A artéria vertebral penetrou pelo forame magno, e seus antímeros anastomosaram-se formando uma calibrosa artéria basilar. A artéria basilar, de grande calibre, alcançou

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13

Routledge, Hayden Swailes. "Regulation of myogenic tone in cerebral and mesenteric resistance arteries by metabolic agents and second messenger systems." Thesis, University of Glasgow, 2000. http://theses.gla.ac.uk/4904/.

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1. The pressure-perfusion myograph. permeabilisation techniques and also intracellular membrane potential recordings were used to examine the regulation of myogenic tone in cerebral and mesenteric resistance arteries by metabolic agents and second messenger systems. 2. After pressurisation to 60 mmHg, rat isolated mesenteric and cerebral resistance arteries developed spontaneous myogenic tone, resulting in a 26 ± 1% (n = 42) and 30 ± 2% (n = 14) reduction in diameter respectively. 3. The metabolic vasodilator adenosine and the KATI' channel opener cromakalim each produced a dose-dependent dila

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14

Souza, Fernanda de. "Sistematização das artérias da base do encéfalo e suas fontes de suprimento sanguíneo em coelho da raça Nova Zelândia (Oryctolagus cuniculus)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/40082.

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Foram utilizados 30 encéfalos de coelhos Nova Zelândia (Oryctolagus cuniculus), injetados com látex, corado em vermelho, com objetivo de sistematizar as artérias da base do encéfalo e suas fontes de suprimento sanguíneo. Sistematizou-se a origem das fontes de suprimento sanguíneo para o encéfalo e as artérias (Aa) da face ventral do mesmo, tanto à direita (D) como à esquerda (E), com suas respectivas percentagens de aparecimento: o arco aórtico emitiu tronco braquiocefálico e artéria (A.) subclávia E (83,3%), ou tronco braquiocefálico, A. carótida comum E e A. subclávia E (16,7%). O tronco bra

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15

Dashner, Roger A. "Visualizing the cerebral microvasculature anatomical explorations into the resolution capabilities of 8 tesla magnetic resonance imaging /." Columbus, Ohio : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5fnum=osu1053533400.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xviii, 105 p.; also contains graphics (some col.). Includes abstract and vita. Advisor: David L. Clark, Dept. of Anatomy. Includes bibliographical references (p. 98-105).

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16

Oliveira, Jean Gonçalves de. "Avaliação do fluxo sanguíneo em artérias perfurantes durante a cirurgia de aneurismas intracranianos através da video-angiografia intra-operatória utilizando indocianina verde." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/5/5138/tde-10032010-113140/.

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Introdução. As artérias perfurantes comumente são evidenciadas durante a dissecção microcirúrgica para clipagem de aneurismas intracranianos. A oclusão de artérias perfurantes pode ser responsável por infarto encefálico isquêmico e resultados clínicos indesejáveis. O presente estudo objetiva descrever a utilidade da vídeo-angiografia intra-operatória com indocianina verde (VAIICG) na avaliação do fluxo sanguíneo em artérias perfurantes visibilizadas no campo microcirúrgico, durante a clipagem de aneurismas intracranianos. Secundariamente, foi analisada a incidência de artérias perfurantes envo

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17

Sugita, Kenichiro, Masato Shibuya, Masakazu Takayasu, Yasukazu Kajita, Shin-ichi Satoh, Yoshio Suzuki, and Hirofumi Oyama. "Role of Nitric Oxide in the Cerebral Vasodilatory Responses to Vasopressin and Oxytocin in Dogs." Thesis, Nature Publishing Group, 1993. http://hdl.handle.net/2237/16711.

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18

Rand, Victoria. "A study of the influence of the endothelium on the responses of the smooth muscle cells in rabbit cerebral arteries." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316423.

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19

ITOH, JUNKI, SOHSHUN TAKADA, HITOSHI ISHIGURI, and HIROJI KUCHIWAKI. "Patterns of Regional Cerebral Blood Flow in Patients with Occlusive or Stenotic Lesions of Both the Internal Carotid and Vertebrobasilar Arteries." Nagoya University School of Medicine, 1988. http://hdl.handle.net/2237/17504.

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20

Hollnagel, Dorothea Ilse. "Hemodynamics in cerebral arteries and aneurysms : comparative velocity investigations with 3D phase-contrast magnetic resonance angiography, laser doppler velocimetry and computational fluid dynamics." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17658.

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21

Belik, Fernanda Stringuetta. "Influência do treinamento aeróbico intradialítico no fluxo sanguíneo cerebral e o reflexo sobre a função cognitiva e qualidade de vida em pacientes renais crônicos." Botucatu, 2016. http://hdl.handle.net/11449/136474.

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Orientador: Roberto Jorge da Silva Franco<br>Resumo: Introdução: A doença renal crônica (DRC) tem uma inter-relação complexa com outras doenças. A literatura relata a associação direta entre declínio da função renal e comprometimento cognitivo, o qual está relacionado com pior qualidade de vida (QV). Alterações na hemodinâmica cerebral podem desempenhar papel relevante na patogenia da disfunção cognitiva entre pacientes em hemodiálise (HD). Recentemente, surgiram evidências que apoiam o papel da atividade física na prevenção ou no adiamento do declínio cognitivo. Objetivo: Avaliar os efeitos d

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22

Leão, Karina Ferreira. "DESEMPENHO COGNITIVO DE PESSOAS COM ACIDENTE VASCULAR ENCEFÁLICO." Pontifícia Universidade Católica de Goiás, 2015. http://localhost:8080/tede/handle/tede/1878.

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Made available in DSpace on 2016-07-27T14:20:39Z (GMT). No. of bitstreams: 1 KARINA FERREIRA LEAO.pdf: 931734 bytes, checksum: d9ac2b2c89cc1041418e8622e328e625 (MD5) Previous issue date: 2015-02-26<br>Recent studies reveal the high frequency of individuals who are affected by stroke and the cognitive dysfunctions they feature consequently. This paper seeks to assess the cognitive impairments of experiencing a stroke and, more specifically, to evaluate the cognitive performance of people affected by stroke according to hemisphere and artery affected. The paper is divided into two main parts.

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23

Belik, Fernanda Stringuetta [UNESP]. "Influência do treinamento aeróbico intradialítico no fluxo sanguíneo cerebral e o reflexo sobre a função cognitiva e qualidade de vida em pacientes renais crônicos." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/136474.

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Submitted by FERNANDA STRINGUETTA BELIK null (ferstringuetta@hotmail.com) on 2016-03-30T18:23:04Z No. of bitstreams: 1 TESE FERNANDA STRINGUETTA BELIK.pdf: 1988238 bytes, checksum: c1ee7222d5475f972cf5f72824d33f17 (MD5)<br>Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-03-31T13:57:19Z (GMT) No. of bitstreams: 1 belik_fs_dr_bot.pdf: 1988238 bytes, checksum: c1ee7222d5475f972cf5f72824d33f17 (MD5)<br>Made available in DSpace on 2016-03-31T13:57:19Z (GMT). No. of bitstreams: 1 belik_fs_dr_bot.pdf: 1988238 bytes, checksum: c1ee7222d5475f972cf5f72824

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Nelson, Merlisa Claudia. "Ultrasound evaluation of the extracranial cerebrospinal venous system and carotid arteries in patients with multiple sclerosis." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1565.

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Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Radiography in the Faculty of Health and Wellness Sciences at the Cape Peninsula University of Technology Supervisor: Ms. Ferial Isaacs Co-supervisor: Prof. Susan J. Van Rensburg Bellville September 2013<br>Multiple Sclerosis (MS) is characterised by demyelination within the central nervous system (CNS), which may result in neurological disabilities over time, causing considerable hardship to patients and their families, in addition to being costly to treat. Recent studies have linked MS to impaired cerebra

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25

Niigaki, Juliana Ikeda. "Dopplervelocimetria da artéria cerebral média fetal na predição da acidemia no nascimento em gestações com insuficiência placentária." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5139/tde-08042014-090931/.

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Objetivo: Avaliar a relação das alterações de fluxo na artéria cerebral média (ACM) com a ocorrência de acidemia no nascimento, em gestações com insuficiência placentária. Métodos: estudo transversal prospectivo com 91 gestações com diagnóstico de insuficiência placentária pelo Doppler de artéria umbilical (AU) alterado (índice de pulsatilidade [IP] > p95). Os critérios de inclusão foram: gestações únicas com idade gestacional (IG) superior a 26 semanas completas, membranas ovulares íntegras, ausência de anomalias cromossômicas ou congênitas. Os parâmetros da dopplervelocimetria analisados for

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26

Georgeon, Chartier Carole. "Evaluation des effets du vieillissement sur la signalisation calcique des cellules musculaires lisses des artères cérébrales dans les modèles murins C57BL6/J, SAMR1 et SAMP8 dans des conditions normales et sous restriction calorique." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14692/document.

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Au cours du vieillissement, les artères cérébrales subissent des modifications structurelles et fonctionnelles, notamment au niveau des cellules musculaires lisses (CML). La CML a pour rôle de maintenir la réactivité vasculaire via une signalisation calcique qui fait intervenir différents acteurs pouvant ainsi réguler deux phénomènes : la contraction et la relaxation. Ces acteurs rassemblent, au sein d’une même cellule, des canaux (CCVD, RYR, IP3R), des pompes calciques (SERCA, PMCA, NCX, STIM/ORAI) et leurs régulateurs (PLB, FKBP12.6, TRPP2, SARAF, TRIC). La restriction calorique (RC), appara

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27

FERNANDES, MARQUES ANTONIO ALBERTO. "Les infarctus de l'artere cerebrale posterieure : elements pronostiques ; a propos de 81 observations." Besançon, 1996. http://www.theses.fr/1996BESA3066.

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28

Faye, Laurence. "Infarctus de l'artere cerebrale moyenne : devenir tardif de 46 patients ; recherche de facteurs pronostiques de l'evolution tardive." Lille 2, 1994. http://www.theses.fr/1994LIL2M148.

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29

Haddad, Antonio Carlos. "Relações topograficas da arteria cerebral medica com o sulco lateral (de Sylvius) : (contribuição a via de acesso transsilviana aos aneurismas cerebrais da "circulção anterior")." [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309846.

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Orientador: Vilma Cloris de Carvalho<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-07-19T18:24:16Z (GMT). No. of bitstreams: 1 Haddad_AntonioCarlos_M.pdf: 5286191 bytes, checksum: 5c4184688fd33b18f0cff0e4c15aca8d (MD5) Previous issue date: 1994<br>Resumo: A anatomia da artéria cerebral média e, dos giros que compõem o sulco lateral, foi estudada em 30 encéfalos não fixados. As dissecções eram feitas a partir da junção opercular fronto-temporal, de forma semelhante às abordagens transsilvianas aos aneurismas da

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30

Hérard, Alain. "L'arterite post-radique des vaisseaux a destinee cerebrale : etude de 12 cas." Angers, 1992. http://www.theses.fr/1992ANGE1034.

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31

López, Diestra Jefferson. "Cuantificación de la arteria cerebral media hiperdensa, en pacientes con accidente cerebrovascular isquémico agudo, atendidos en el servicio de tomografía del Hospital Nacional Hipólito Unanue. Mayo – diciembre 2014, Lima – Perú." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/5021.

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La realización de una tomografía espiral multicorte urgente y la detección de signos precoces de isquemia: como la arteria cerebral media hiperdensa, permiten mejorar el diagnóstico, ajustar el tratamiento, evitar errores terapéuticos graves, informar sobre el pronóstico vital de los pacientes e influye significativamente en la elección del destino de estos. Por ello se busca obtener una cuantificación absoluta y relativa de la densidad en el signo de la arteria cerebral media (ACM) con la finalidad de lograr un valor objetivo para el diagnóstico temprano de isquemia cerebral aguda mediante un

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Torrens, Jurin Pedro Antonio. "Ecuaciones Constitutivas y Análisis Geométrico-Mecánico para Pared Arterial de Aneurismas Cerebrales y Arterias Sanas." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/104624.

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33

Helps, Stephen. "Pathophysiological basis of cerebral arterial air embolism /." Title page, table of contents and summary only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phh484.pdf.

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34

von, Sarnowski Bettina, Ulf Schminke, Ulrike Grittner, Franz Fazekas, Christian Tanislav, Manfred Kaps, Turgut Tatlisumak, et al. "Cervical Artery Dissection in Young Adults in the Stroke in Young Fabry Patients (sifap1) Study." Karger, 2015. https://tud.qucosa.de/id/qucosa%3A70584.

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Background: Patients with carotid artery dissection (CAD) have been reported to have different vascular risk factor profiles and clinical outcomes to those with vertebral artery dissection (VAD). However, there are limited data from recent, large international studies comparing risk factors and clinical features in patients with cervical artery dissection (CeAD) with other TIA or ischemic stroke (IS) patients of similar age and sex. Methods: We analysed demographic, clinical and risk factor profiles in TIA and IS patients ≤ 55 years of age with and without CeAD in the large European, multi-ce

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Heinzen, Rosane Porto Seleme. "Comportamento anatômico da artéria cerebral caudal no cão, sem raça definida (Canis familiaris - Linnaeus, 1758) /." Florianópolis, SC, 2000. http://repositorio.ufsc.br/xmlui/handle/123456789/79097.

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Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas.<br>Made available in DSpace on 2012-10-17T23:10:43Z (GMT). No. of bitstreams: 0Bitstream added on 2014-09-25T17:06:39Z : No. of bitstreams: 1 153029.pdf: 33672043 bytes, checksum: db38900bb7de87c043bdb27122ebd81c (MD5)<br>Estudo do comportamento anatômico da artéria cerebral caudal em cães, injetados com a Solução de Schlesinger, que, sempre única, surgiu em todos os casos na face ventral do pedúnculo cerebral, rostralmente ao nervo oculomotor, diretamente das artérias comunicantes caudais. No segm

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Lacour, Jean-Christophe. "Les infarctus arteriels cerebraux de l'adulte jeune : etude prospective de 152 observations." Nancy 1, 1994. http://www.theses.fr/1994NAN11100.

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MARTINS, Islane Cristina. "Morfologia do círculo arterial cerebral em humanos: hipoplasia do segmento A1 da artéria cerebral anterior e padrão fetal da artéria cerebral posterior." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/20007.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-07-25T12:54:13Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Islane Cristina Martins.pdf: 2501962 bytes, checksum: f8da8fe4623e40c91559079d260f0d75 (MD5)<br>Made available in DSpace on 2017-07-25T12:54:13Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Islane Cristina Martins.pdf: 2501962 bytes, checksum: f8da8fe4623e40c91559079d260f0d75 (MD5) Previous issue date: 2016-08-26<br>FACEPE<br>O círculo arterial cerebral

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Chan, Marcelo. "The design and development of a cerebral embolic implant." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/17767.

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39

Wesołowski, Roman. "Development of arterial spin labelling methods for monitoring cerebral haemodynamics." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/13854/.

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The work described in this thesis was carried out at the Sir Peter Mansfield Magnetic Resonance Centre at the University of Nottingham between March 2006 and December 2009. All work described in this thesis was performed by the author, except where indicated. This thesis aims to develop and implement ASL techniques to measure haemodynamic responses to neural activity. The development of a new technique Double Acquisition Background Suppression (DABS) is presented as a remedy for a newly discovered artefact affecting Philips Achieva 7 T scanners and other sources of variation in baseline signal

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Willie, Christopher Kenneth. "Cerebral blood flow in man : regulation by arterial blood gases." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/47074.

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Due to the high metabolic rate of brain tissue and nominal substrate storage, brain perfusion must be precisely regulated to ensure continuous delivery of oxygen and substrates. Cerebral blood flow (CBF) is principally regulated by tissue metabolism, perfusion pressure, autonomic nervous activity, and the partial pressures of arterial oxygen (PaO₂)and carbon dioxide (PaCO₂) – an integrative process thus involving the marked influence of pulmonary gas exchange and cardiovascular function, in addition to intracranial mediators of cerebrovascular resistance. This thesis explicates the roles of

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Nasi, Luiz Antonio. "Manipulação da pressão arterial no acidente vascular cerebral isquêmico agudo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/132167.

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Figueiredo, P. M. "Measuring brain perfusion using arterial spin labelling by magnetic resonance imaging." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275320.

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Modaresi, Kamran Bahari. "Computerised techniques for improved imaging and monitoring of the arterial circulation." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281685.

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Liu, Yi. "A study of mathematical modelling and signal processing of cerebral autoregulation." Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273880.

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Gibert, Guillaume. "Quantification of the Cerebral Perfusion with the Arterial Spin Labelling 3D-MRI method. Quantification of the Cerebral Perfusion with the Arterial Spin Labelling 3D-MRI method." Thesis, KTH, Skolan för teknik och hälsa (STH), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148020.

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The Arterial Spin Labelling (ASL) method is a Magnetic Resonance technique used toquantify the cerebral perfusion. It has the big advantage to be non-invasive so doesn’tneed the injection of any contrast agent. But due to a relatively low Signal-to-NoiseRatio (SNR) of the signal acquired (only approximately 1% of the image intensity), ithas been hampered to be widely used in a clinical setting so far.The primary objective of this project is to make the method more robust by improvingthe quality of the images, the SNR, and by reducing the acquisition time. DifferentASL protocols with different

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GUILHEM, RAYBAUT DOMINIQUE. "Accidents vasculaires cerebraux arteriels et ischemiques du sujet jeune." Nice, 1992. http://www.theses.fr/1992NICE6542.

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Herrera, Chirre Alessia Marely. "Signos radiológicos presentes en tomografía computada simple en pacientes con accidente cerebrovascular isquémico. Instituto Nacional de Ciencias Neurológicas. Octubre a diciembre del 2017." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2018. https://hdl.handle.net/20.500.12672/10034.

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Determina los signos radiológicos presentes en tomografía computada simple en pacientes con accidente cerebrovascular isquémico atendidos en el Instituto Nacional de Ciencias Neurológicas de octubre a diciembre del 2017. La investigación realizada es cuantitativa, de tipo observacional, retrospectivo, de corte transversal y descriptivo. Se tuvo como muestra 36 informes radiológicos y/o imágenes tomográficas de los pacientes con presencia de signos radiológicos de accidente cerebrovascular isquémico a los cuales se les realizó una tomografía computada simple durante el periodo comprendido entre

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Rosário, Silvia Rosane Parcias. "Comportamento anatômico da artéria cerebral rostral no cão, sem raça definida (Canis familiaris - Linnaeus, 1758) /." Florianópolis, SC, 1999. http://repositorio.ufsc.br/xmlui/handle/123456789/81068.

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Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas.<br>Made available in DSpace on 2012-10-18T22:31:14Z (GMT). No. of bitstreams: 0Bitstream added on 2016-01-09T01:48:24Z : No. of bitstreams: 1 161702.pdf: 28143116 bytes, checksum: ad9689c1cc288d0c26b2e367c4c43a60 (MD5)<br>Estuduo do comportamento anatômico da artéria cerebral rostral no cão, injetados com a Solução de Schlesinger , onde a artéria cerebral rostral à direita e à esquerda, sempre única, originou-se em todos os casos (100,00%) diretamente da artéria carótida interna, dirigindo-se rostr

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Paschoal, André Monteiro. "Otimização do contraste em Arterial Spin Labeling multifase." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-29092015-101918/.

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Imagem por ressonância magnética tem sido um dos principais métodos para a aquisição de imagens para diagnósticos na medicina, em especial para a obtenção de medidas do cérebro. Apesar de se mostrar muito eficiente, o método atualmente utilizado para a realização da ressonância em hospitais e centros de diagnósticos, em alguns casos, necessita da aplicação de um contraste de gadolínio intravenoso. Essa injeção do contraste pode mostrar-se um tanto quanto invasivo, podendo em alguns casos resultar em algumas reações indesejadas nos pacientes. Em vista disso, um método que tem sido bastante estu

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Nunes, Sílvia Daniela de Macedo Teixeira. "Risco cerebrovascular e arterial periférico numa população com aterosclerose coronária limitada." Master's thesis, Universidade da Beira Interior, 2012. http://hdl.handle.net/10400.6/1107.

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Objectivos: Neste trabalho de investigação procurou responder a 3 objectivos primordiais: (1) determinar se o score de cálcio baixo identifica ou não indivíduos com escasso atingimento aterosclerótico nos territórios cerebrovascular e vascular periférico; (2) determinar se o reduzido envolvimento coronário, traduzido por um score de cálcio coronário baixo, se traduz em reduzida ocorrência de eventos cardiovasculares major; e (3) correlacionar esse risco com as escalas clássicas. Introdução: Estudos recentes mostram que a quantificação de cálcio nas artérias coronárias, score coronário de cálc

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