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Dissertations / Theses on the topic 'Coronal computed tomography'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Roshan, David James. "A convolutional neural network algorithm to measure olfactory fossa depth on coronal computed tomography scans of the paranasal sinuses." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29616.

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The paranasal sinuses are a group of four paired air-filled spaces that exist superior and laterally to the nasal cavity. The sinuses are considered to provide an immunological role along with mucus production and air humidification. These sinus tissues are susceptible to obstructive malformation, inflammatory, infectious, and neoplastic processes, sometimes requiring surgical management. Surgical management has moved from open approaches to minimally invasive endoscopic sinus surgery (ESS). This surgical approach, although effective, has a reported complication rate of up to 5%, with cerebros

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2

Gomes, Aline Cristine 1989. "Estudo transversal da condição perirradicular e qualidade do tratamento endodôntico e restaurador em uma população brasileira através de tomografias computadorizadas cone beam : Periapical status and quality of root fillings and coronal restorations in a Brazilian population : a CBCT study." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289735.

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Orientador: Alexandre Augusto Zaia<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-27T02:46:44Z (GMT). No. of bitstreams: 1 Gomes_AlineCristine_M.pdf: 987534 bytes, checksum: ab529af967b95d1c0326fdac44aa289f (MD5) Previous issue date: 2015<br>Resumo: Este estudo transversal determinou a prevalência de periodontite apical em 1290 dentes tratados endodonticamente em uma população brasileira, assim como as variáveis associadas à saúde perirradicular, através da avaliação de Tomografias Computadorizadas

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3

Donnelly, Patrick Martin. "Computed tomography of the coronary arteries." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.446135.

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4

Pugliese, Francesca. "Multi-slice computed tomography of coronary arteries." [S.l. : Rotterdam : The Author] ; Erasmus University [Host], 2008. http://hdl.handle.net/1765/13655.

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5

Mazinani, Mahdi. "Computer aided detection and measurement of coronary artery disease from computed tomography angiography images." Thesis, Kingston University, 2012. http://eprints.kingston.ac.uk/24527/.

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Coronary artery disease is one of the most pernicious diseases around the world and early identification of vascular disease can help to reduce morbidity and mortality. Assessment of the degree of vascular obstruction, or stenosis, is critical for classifying the risks of the future vascular events. Automatic detection and quantification of stenosis are important in assessing coronary artery disease from medical imagery, especially for disease progression. Important factors affecting the reproducability and robustness of accuarate quantification arise from the partial volume effect and other n

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6

Martensen, Jens. "Coronary angiography with four-row multidetector computed tomography." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976007851.

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7

Roberts, Will. "Assessment of coronary artery disease by computed tomography." Thesis, Queen Mary, University of London, 2013. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8708.

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Computed Tomography Coronary Angiography (CTCA)is a technique for imaging coronary arteries with increasing indications in clinical cardiology. AIMS 1.Develop a heart rate (HR) lowering regime for CTCA and to measure its association with image quality. 2.Examine the diagnostic accuracy of 64 slice CTCA (CTCA64) in patients with known coronary artery disease (CAD). 3.Examine the diagnostic accuracy of CTCA64 for assessment of stent restenosis 4.Demonstrate utility of CTCA as an endpoint in assessment of novel diagnostic biomarkers of CAD. METHODS I developed a HR reducing strategy using metopro

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8

Coles, Duncan Robert. "Detection of coronary atherosclerotic disease using multislice computed tomography." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520319.

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9

Williams, Michelle Claire. "Computed tomography imaging of the heart." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/25852.

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Computed tomography imaging has revolutionised modern medicine and we can now study the body in greater detail than ever before. Cardiac computed tomography has the potential to provide information not just on coronary anatomy, but also on myocardial function, perfusion and viability. This thesis addresses the optimisation and validation of computed tomography imaging of the heart using a wide volume 320-multidetector scanner. Computed tomography coronary angiography now has diagnostic accuracy comparable to invasive coronary angiography. However, radiation dose remains an important concern. I

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10

Wick, Carson A. "Detection and prediction of cardiac quiescence for computed tomography coronary angiography." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52242.

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The objective of this work is to improve the diagnostic quality and reduce the radiation dose of computed tomography coronary angiography (CTCA) imaging by developing gating techniques based on signals derived from cardiac motion, rather than the currently used electrocardiogram (ECG), to more reliably trigger data acquisition during periods of cardiac quiescence. Because the ECG is an indication of electrical activity, it is a surrogate marker of the mechanical state of the heart. Therefore, gating based on a signal derived directly from cardiac motion using either echocardiography or seismoc

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11

Ayoub, Chadi. "Evaluation Of Semi-Quantitative Measures Of Coronary Atherosclerosis Burden By Computed Tomography Angiography." Thesis, The University of Sydney, 2019. http://hdl.handle.net/2123/20985.

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CAD is a leading cause of morbidity and death. Coronary computed tomography angiography (CCTA) is an anatomic, non-invasive imaging technique that can diagnose and risk stratify CAD, without the risks associated with invasive coronary angiography, the gold standard. This research first carried out a review of the literature to appraise current clinical applications of CCTA, its prognostic power and future directions in terms of advances. The segment involvement score (SIS), also termed the total plaque score (TPS), is a semi-quantitative score that gives an indication of coronary disease burde

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12

Barreto, Mitya M. "Application of Dual-Energy Computed Tomography to the Evaluation of Coronary Atherosclerotic Plaque." Cleveland State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=csu1266528762.

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13

Barreto, Mitya M. "Application of dual-energy computed tomography to the evalution of coronary atherosclerotic plaque." Cleveland, Ohio : Cleveland State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=csu1266528762.

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Thesis (D.Eng.)--Cleveland State University, 2009.<br>Abstract. Title from PDF t.p. (viewed on Mar. 3, 2010). Includes bibliographical references (p. 150-170). Available online via the OhioLINK ETD Center and also available in print.

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14

Maiolino, Giuseppe. "Comparative study at computed tomography angiography and intravascular ultrasound of coronary atherosclerotic plaques." Doctoral thesis, Università degli studi di Padova, 2008. http://hdl.handle.net/11577/3425553.

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Aim. The aim of my doctoral thesis was to estimate the accuracy of coronary computed tomography angiography (CTA) in quantifying calcified and non-calcified coronary artery atherosclerotic plaques in comparison with intravascular ultrasound (IVUS). Moreover, the ability of coronary CTA in predicting the IVUS-derived plaque tissue characterization ("virtual histology", IVUS-VH) was assessed. Background. Coronary CTA proved to be reliable in detecting and quantifying non-calcified coronary plaques. However, calcified plaques are still challenging its diagnostic accuracy, due to the partial

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15

Jenkins, Shona Margaret MacRae. "Multi-slice computed tomography coronary angiography for the detection of coronary artery disease in a district hospital setting." Thesis, University of Glasgow, 2011. http://theses.gla.ac.uk/2616/.

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Coronary artery disease (CAD) is the leading cause of mortality in Scotland (population 5.2 million), accounting for around 9000 deaths each year. Accurate diagnosis of the presence and extent of CAD is essential to guide management. Invasive coronary angiography (I-CA) is the gold standard diagnostic investigation but is associated with a small risk of significant vascular complications. Over the last decade multi-slice computed tomography coronary angiography (MSCT-CA) has emerged as a non-invasive imaging modality capable of visualising the coronary arteries. Incremental advances in scanner

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Andreini, D. "PROGNOSTIC VALUE OF MULTIDETECTOR COMPUTED TOMOGRAPHY CORONARY ANGIOGRAPHY IN DIABETES: EXCELLENT LONG-TERM PROGNOSIS IN PATIENTS WITH NORMAL CORONARY ARTERIES." Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/219084.

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Objective: To assess the prognostic role of multidetector computed tomography coronary angiography (MDCT-CA) in diabetics with suspected coronary artery disease (CAD). Use of MDCT-CA is increasing in patients with suspected CAD. However, data supporting its prognostic value in diabetics are limited. Research Design and Methods: Between January 2006 and September 2007, 429 consecutive diabetic patients were prospectively studied with MDCT-CA for detecting presence and assessing extent of CAD (disease extension and coronary plaque scores). Patients were classified according to the presence of n

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17

Alhailiy, Ali. "Dose Optimisation and Establishment of Diagnostic Reference Levels in Cardiac Computed Tomography Angiography." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/19854.

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Cardiac computed tomography angiography (CCTA) has become an invaluable tool for the detection of cardiac disease. However, radiation brings potential risks of radiation-induced cancers. Diagnostic Reference Levels (DRLs) identify unusually high radiation doses, which makes it a useful tool for targeting dose optimisation. The literature shows no established DRLs for CCTA in Saudi Arabia or Australia. This thesis aims to: 1) propose national DRLs (NDRLs) for CCTA in these countries; 2) identify the associated factors for dose variation in current CT centres. Methods: A structured survey was de

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18

Adamson, Philip Douglas. "Novel approaches to the diagnostic and prognostic assessment of coronary heart disease." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/28937.

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BACKGROUND: Cardiovascular disease, principally manifest as myocardial infarction or stroke, is the dominant cause of death worldwide and despite therapeutic advances, the global burden of these conditions continues to increase. In order to address this ongoing disease burden, there is a clear need to more effectively target the use of existing and novel diagnostic investigations and medical therapies. Emerging cardiovascular biomarkers include the biochemical, such as high-sensitivity cardiac troponin, and the radiological, such as computed tomography coronary angiography (CTCA) and 18Ffluori

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19

Alshahrani, Ali. "Derivation and Validation of a Clinical Tool to Predict Obstructive Coronary Artery Disease Among Patients with Zero Coronary Calcium Score." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38152.

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Coronary artery disease (CAD) is associated with significant morbidity and mortality. Coronary artery calcification (CAC) indicates presence of CAD. Absence of CAC is associated with very low risk of having CAD but not equal to zero. In this study, we aim at developing a clinical prediction tool to predict presence of obstructive CAD among patients with zero calcium score. We developed two models. A full prespecified model with 7 variables based on input from clinical experts, and a reduced model with 4 variables based on univariate screening. Both models showed an acceptable performance (c-st

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20

Capuano, Ermanno. "Assessment of Coronary Heart disease In Low Likelihood patients with End Stage kidney disease (ACHILLES) : comparison between Coronary Computed Tomography Angiography and Myocardial Perfusion Imaging." Thesis, Queen Mary, University of London, 2017. http://qmro.qmul.ac.uk/xmlui/handle/123456789/25810.

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Purpose: To evaluate the diagnostic performance of Coronary Computed Tomography Angiography (CCTA) in predicting Myocardial Perfusion Scintigraphy (MPS) perfusion defects in low likelihood patients with End Stage Renal Disease (ESRD) awaiting transplant. Materials and Methods: In total, 131 consecutive patients with ESRD awaiting transplant were prospectively enrolled in this study (86 men; 54±9years). All patients underwent MPS as per standard of care and in addition non-enhanced CT for calcium scoring (CAC score) and Coronary Computed Tomography Angiography (CCTA). Results: The sensitivity,

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21

Herz, Franziska. "Diagnostic performance of prospectively ECG triggered versus retrospectively ECG gated 64-slice computed tomography coronary angiography in a heterogeneous patient population." Doctoral thesis, Universitätsbibliothek Leipzig, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-82147.

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Die koronare Herzkrankheit (KHK) gehört zu den häufigsten Todesursachen in den westlichen Industrienationen. Die Diagnostik der Erkrankung hat somit großen Stellenwert in der Medizin. Akzeptierter Goldstandard zur Diagnostik einer KHK ist die Herzkatheteruntersuchung (HKU). Als nicht-invasive Alternative zur HKU hat sich in den letzten Jahren die Mehrzeilen-Computertomographie als zuverlässiges Verfahren für den KHK-Ausschluss bei mittlerer Vortestwahrscheinlichkeit etabliert. Ziel dieser Arbeit ist es, die diagnostischen Eigenschaften der prospektiv getriggerten mit der retrospektiv getrigger

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22

Pontone, G. "DIAGNOSTIC ACCURACY OF COMPUTED TOMOGRAPHY CORONARY ANGIOGRAPHY FOR EVALUATION OF CORONARY ARTERY DISEASE IN HIGH RISK PATIENTS: A COMPARISON BETWEEN HIGH (0.23 MM) VERSUS STANDARD (0.625 MM) SPATIAL RESOLUTION SCANNER." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/233987.

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Purpose: To compare the image quality, evaluability, diagnostic accuracy and radiation exposure of high spatial resolution computed tomographic coronary angiography (HD-CCTA) versus standard spatial resolution 64-slice scanner (SD-CCTA) in high-risk patients for coronary artery disease (CAD) by using invasive coronary angiography (ICA) as the reference method. Material and Methods: Written informed consent was obtained from all patients and the study protocol was approved by the institutional ethical committee. One-hundred-eighty-four consecutive high risk patients for CAD and scheduled for I

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23

Cumpston, Devan N. "New Approaches to Studying Coronary Collateral Growth in a Mouse Model." NEOMED Integrated Pharmaceutical Medicine / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ne2mh1558708401226297.

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24

Chen, Zhi. "Novel quantitative description approaches assessing coronary morphology and development." Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/2194.

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Coronary atherosclerosis is by far the most frequent cause of ischemic heart disease. Intravascular ultrasound (IVUS) along with virtual histology (VH) is a useful tool for quantification of coronary plaque buildup and provides new insights into the diagnosis of coronary disease. Rupture of vulnerable plaque causing acute coronary syndromes, coronary remodeling maintaining lumen size and plaque phenotype revealing pathological severity are among the most important topics related to atherosclerosis. In this thesis, variations of IVUS-VH-derived thin-cap fibroatheroma (TCFA) definitions are prop

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25

Johnson, Kevin Robert. "In Vivo Coronary Wall Shear Stress Determination Using CT, MRI, and Computational Fluid Dynamics." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14482.

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Wall shear stress (WSS) has long been identified as a factor in the development of atherosclerotic lesions. Autopsy studies have revealed a strong tendency for lesion development at arterial branch sites and along the inner walls of curvature areas that, in theory, should experience low WSS. Calculations of coronary artery WSS have typically been based upon average models of coronary artery geometry with average flow conditions and then compared to average lesion distributions. With all the averaging involved, a more detailed knowledge of the correlation between WSS and atherosclerotic lesi

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DICK, ERIC TIMOTHY. "A Survey of CT Phantom Considerations for the Study of Blooming Artifacts as Observed in CT Coronary Angiography Studies: A Preliminary Study." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1205313085.

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27

Ibrahim, Hanna. "Myokardskintigrafi fynd vs koronarangiografi fynd vid kranskärlsjukdom detektering på Universitetssjukhuset Örebro." Thesis, Örebro universitet, Institutionen för medicinska vetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-73518.

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Bakgrund: Kranskärlssjukdom (CAD) är en hjärtsjukdom som kan diagnostiseras med icke-invasiva metoder, såsom myocardial perfusion imaging med single-photon emission computed tomography (SPECT), och genom invasiva metoder, såsom invasiv koronarangiografi (ICA). ICA är den golden standardmetod för att diagnostisera CAD. Men å andra sidan är ICA mer kostsam än SPECT och kan orsaka många komplikationer. Metoder och resultat: det är en retrospektiv kohortstudie. Studien analyserade 62 patienter som har genomgått både SPECT och ICA under 2018 vid Universitetssjukhuset Örebro (USÖ). Av dessa 62 utför

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Samano, Ninos. "No-Touch Saphenous Veins in Coronary Artery Bypass Grafting : Long-term Angiographic, Surgical, and Clinical Aspects." Doctoral thesis, Örebro universitet, Institutionen för hälsovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-50039.

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Ischemic heart disease is currently the leading cause of death globally. Coronary artery bypass grafting (CABG) is considered the best treatment for many patients and its success depends on the long-term patency of the conduits. Greater use of arterial grafts has been advocated because of their higher long-term patency compared to saphenous vein grafts (SVGs). Despite this, SVGs account for up to 80% of all grafts used in CABG. Consequently, the long-term patency of the saphenous vein (SV) is one of the most crucial challenges in cardiovascular surgery. The no-touch (NT) SV in CABG has shown a

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29

Mačys, Antanas. "Miokardo perfuzijos ir kontrakcinės funkcijos įvertinimas radionuklidinės kompiuterinės tomografijos metodu bei prognozė po chirurginės revaskulizacijos." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050905_152622-83820.

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Contents 1. Introduction 7 1.1. The aim of the study 8 1.2. Tasks of the study 9 1.3. The scientific novelty and originality of the study 9 1.4. Practical importance of the study 9 2. Material and methods 11 2.1. The contingent of studied patients 11 2.2. Methods 12 2.2.1.Coronary artery bypass grafting 12 2.2.2. The used equipment 12 2.2.3. The method of myocardial SPECT performance 12 2.2.4. Evaluation of myocardial SPECT 13 2.3. Statistical analysis of data 15 3. Results 16 3.1. The evaluation of influence of left ventricular ejection fraction on postoperative changes of perfusion of revasc

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Herz, Franziska [Verfasser], Matthias [Akademischer Betreuer] Gutberlet, Lukas [Akademischer Betreuer] Lehmkuhl, Thomas [Gutachter] Kahn, and Ardawan [Gutachter] Rastan. "Diagnostic performance of prospectively ECG triggered versus retrospectively ECG gated 64-slice computed tomography coronary angiography in a heterogeneous patient population / Franziska Herz ; Gutachter: Thomas Kahn, Ardawan Rastan ; Matthias Gutberlet, Lukas Lehmkuhl." Leipzig : Universitätsbibliothek Leipzig, 2012. http://d-nb.info/1238020720/34.

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Godoy, Gustavo Khattar de 1978. "Análise quantitativa da doença arterial coronariana obstrutiva por tomografia computadorizada de 64 detectores e pela cinecoronariografia e sua correlação com o equivalente isquêmico detectado pela cintilografia de perfusão miocárdica = Quantitative coronary artery stenosis assessment by multidetector CT and invasive coronary angiography for identifying patients with myocardial perfusion abnormalities." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/308698.

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Orientadores: Celso Darío Ramos, João Augusto Lima<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-25T22:27:02Z (GMT). No. of bitstreams: 1 Godoy_GustavoKhattarde_D.pdf: 2269934 bytes, checksum: b16ad3f63241f0e2537f807b8c45d497 (MD5) Previous issue date: 2014<br>Resumo: Este trabalho consiste na comparação de diferentes métodos de imagem utilizados na prática clínica para a detecção da doença coronariana isquêmica, umas das maiores causas de mortalidade nos países desenvolvidos, utilizando como base o estudo multic

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Guimarães, Jorge Augusto Nunes. "Comparação entre tomografia das artérias coronárias e ultrassonografia intracoronária na avaliação de pacientes submetidos a implante de suporte vascular bioabsorvível polimérico radiolucente." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/98/98131/tde-15072014-093722/.

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Introdução: A tomografia das artérias coronárias (ANGIO-TC) tem o potencial de medir as dimensões dos vasos e pode ser opção, aos métodos invasivos, para análises quantitativas em intervenções coronárias com suportes vasculares bioabsorvíveis (SVB) poliméricos radiolucentes. Objetivos: Medidas quantitativas pela ANGIO-TC do lúmen de segmentos coronários de pacientes submetidos a implante de um SVB com eluição de novolimus (DESolve®) foram comparadas às do ultrassom intracoronário (USIC). Os objetivos primários foram a comparação da área mínima e do volume do lúmen do SVB. Outros objetivos incl

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Sridhar, Shravan. "Comparison of 64‐Slice EKG‐Gated Computed Tomographic Angiography, Transthoracic Echocardiography, and Transesophageal Echocardiography for Detection and Complete Characterization of Anomalous Coronary Arteries in Infants with Comorbid Congenital Cardiac Malformations." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/603665.

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A Thesis submitted to The University of Arizona College of Medicine - Phoenix in partial fulfillment of the requirements for the Degree of Doctor of Medicine.<br>Background and Objective: Computed tomographic angiography (CTA) offers several benefits over echocardiography in the detection of CAAs (coronary artery anomalies). These include higher spatial resolution, operator independency, non‐invasiveness, and the availability of reconstructive techniques to track the entire arterial course.1,4,9 Accordingly, standard clinical practice (per ACC/AHA guidelines for adults with CAAs) for adult

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Magalhães, Tiago Augusto. "Angiografia coronariana e perfusão miocárdica de estresse por tomografia computadorizada de 64 colunas de detectores na avaliação luminal intra-stent." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-24042012-165356/.

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A angiografia coronariana por tomografia computadorizada (ACTC) é um exame bem estabelecido no diagnóstico da doença arterial coronariana. Entretanto, segmentos coronarianos submetidos a implante de stent podem apresentar limitação na avaliação luminal. O objetivo deste estudo é avaliar o valor adicional da perfusão miocárdica por tomografia computadorizada (PMTC) à avaliação anatômica isolada pela ACTC em portadores de stent, tendo o cateterismo (CATE) como referência. Quarenta e seis pacientes (56,9±7,2 anos, 28 homens) com indicação clínica de CATE em até 60 dias foram submetidos à avaliaçã

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Westerdahl, Elisabeth. "Effects of Deep Breathing Exercises after Coronary Artery Bypass Surgery." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4520.

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Gabriel, Fabíola Santos. "Placa aterosclerótica à angiotomografia de coronárias em pacientes com escore de cálcio zero." Universidade Federal de Sergipe, 2017. https://ri.ufs.br/handle/riufs/3843.

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Background: In view of the high mortality due to Cardiovascular Diseases in the world, a stratification of the main risk factors and correct choice of the diagnostic modality is necessary. Several studies have shown that the calcium score (CS) has a low risk of cardiovascular events. However, the frequency of individuals with coronary atherosclerotic plaques and zero CS is conflicting in the specialized medical literature. Objective: To evaluate the frequency of coronary atherosclerotic plaques and associated factors in patients with CS. Methods: This was a prospective, cross-sectional

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Oliveira, Eloína Nunes. "Validação da ultra-sonografia em relação à Tomografia computadorizada na determinação de gordura abdominal em pacientes coronariopatas." reponame:Repositório Institucional da FIOCRUZ, 2002. https://www.arca.fiocruz.br/handle/icict/5888.

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Submitted by Ana Maria Fiscina Sampaio (fiscina@bahia.fiocruz.br) on 2012-11-27T19:08:40Z No. of bitstreams: 1 Eloina Nunes de Oliveira Validacao da ultra... 2002.pdf: 56743053 bytes, checksum: 8de974eee276ef14038c01e971d6e751 (MD5)<br>Made available in DSpace on 2012-11-27T19:08:40Z (GMT). No. of bitstreams: 1 Eloina Nunes de Oliveira Validacao da ultra... 2002.pdf: 56743053 bytes, checksum: 8de974eee276ef14038c01e971d6e751 (MD5) Previous issue date: 2002<br>Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, Bahia, Brasil<br>Como fator de risco cardiovascular, a distrib

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Jankauskas, Antanas. "Visiška kairiosios Hiso pluošto kojytės blokada ir vainikinių arterijų angiografijos daugiapjūviu kompiuteriniu tomografu tyrimo vertė." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20100422_112031-11928.

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Vainikinių arterijų tyrimas daugiapjūviu kompiuteriniu tomografu (DKT) į klinikinę praktiką įdiegtas nesenai. Tai neinvazyvus tyrimo metodas, kurį galima atlikti ir ambulatoriniams pacientams. Tačiau greta savo privulumų, jis turi ir trūkumų – dėl nuolatinio vainikinių arterijų judėjimo širdies ciklo metu gali atsirasti liekamųjų judesio artefaktų atkuriant vaizdus. Jų tikimybė priklauso ne tik nuo aparato, kuriuo atliekamas tyrimas, techninių charakteristikų, bet ir nuo širdies veiklos ypatumų. Yra atlikta nemažai tyrimų, įvertinančių vainikinių arterijų vaizdų kokybės priklausomybę nuo širdi

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Silva, Rafael Cavalcante e. "Validação de índices angiográficos e da angiotomografia computadorizada utilizando o ultrasson intravascular como padrão-ouro para quantificar a extensão da doença aterosclerótica coronariana." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-09062015-154447/.

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Introdução: A extensão da doença arterial coronariana (DAC) é um dos mais fortes preditores de eventos cardiovasculares adversos. Estratégias capazes de quantificar acuradamente a gravidade da doença coronária podem implicar em melhora na avalição prognóstica, na orientação terapêutica e na avaliação da progressão da doença. O ultrassom intracoronário (USIC) tornou-se o método padrão-ouro para quantificação da aterosclerose devido à sua habilidade em avaliar diretamente as placas ateroscleróticas. A angiotomografia coronária tem surgido como uma útil alternativa não invasiva ao USIC para avali

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Fahel, Mateus Guimarães. "Integração do estudo anatômico coronariano através da angiotomografia/escore de cálcio ao estudo funcional de perfusão miocárdica pelo PET-CT utilizando rubídio na investigação da doença arterial coronariana." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/5/5151/tde-12012018-094159/.

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Introdução: A doença arterial coronariana (DAC) persiste com alta morbimortalidade. Várias modalidades diagnósticas não-invasivas estão disponíveis para sua avaliação, incluindo escore de cálcio coronariano (EC), angiotomografia coronariana (AngioTC) e tomografia por emissão de pósitrons com rubídio (PET-CT82Rb), com ótimas sensibilidade e especificidade. A integração destes métodos em um exame híbrido permite delinear extensão anatômica e funcional da aterosclerose, possibilitando diagnósticos mais corretos. Objetivo: Avaliar anatomia coronariana e perfusão miocárdica de pacientes suspeitos o

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Neto, Miguel Abraão Rosário. "Detecção de doença arterial coronária pela tomografia computadorizada com múltiplos detectores em pacientes com insuficiência renal crônica pré-transplante." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-12022009-132522/.

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INTRODUÇÃO: A doença arterial coronária (DAC) é a principal causa de óbito em pacientes com insuficiência renal crônica (IRC), sendo o risco de morte por DAC maior do que na população geral. Os resultados dos exames não invasivos tradicionais para detecção de DAC têm apresentado acurácias conflitantes e, em geral, insuficientes para utilização clínica. A tomografia computadorizada com múltiplos detectores (TCMD) apresenta boa acurácia na detecção da DAC. Entretanto, a TCMD ainda não havia sido avaliada neste grupo de pacientes até recentemente. OBJETIVOS: Avaliar a acurácia da TCMD para detect

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Nomura, Cesar Higa. "Correlação entre angiotomografia de coronárias e PET-CT com rubídio na avaliação da doença isquêmica do coração." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/5/5151/tde-06092017-130921/.

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Introdução: Na investigação não invasiva da doença arterial coronariana (DAC), destacam-se como métodos anatômicos de acurácia elevada a tomografia computadorizada (TC) para avaliação do Escore de Cálcio (EC) e a angiotomografia de coronárias (Angio-TC), e como método funcional a tomografia por emissão de pósitrons com Rubídio-82 (PET com 82Rb). As informações destes métodos se complementam e apresentam grande capacidade de ajudar na decisão terapêutica. Entretanto, muitas vezes, apenas um destes métodos está disponível na prática clínica, com destaque para a recente expansão da Angio-TC. Obje

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Matsumoto, Jacqueline Kioko Nishimura. "Avaliação da dose de radiação relacionada ao tempo de chegada do meio de contraste na aorta nas angiotomografias de múltiplos detectores das artérias coronárias." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/5/5151/tde-28032018-120014/.

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Introdução: O uso da tomografia de múltiplos detectores para avaliar a doença arterial coronariana tem aumentado, fornecendo informações valiosas para rotina clínica. O risco potencial da exposição à radiação, por outro lado, exige manter a dose de radiação tão baixo quanto razoavelmente possível. Objetivo: testar e avaliar o ajuste de parâmetros de aquisição no bolus tracking (BT) para reduzir a dose de radiação nos exames de angiotomografias das artérias coronárias (ATCC), sem comprometer a qualidade da imagem. Métodos: Este é um estudo prospectivo de 289 pacientes que realizaram ATCC. Os pa

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Cabeda, Estêvan Vieira. "Avaliação da perfusão miocárdia com estresse farmacológico no tomógrafo de 320 canais nos pacientes com bloqueio de ramo esquerdo em investigação de doença arterial coronariana." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/5/5151/tde-18122013-154811/.

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Introdução: A perfusão miocárdica de estresse pela tomografia (PMT) é um método emergente e não-invasivo para detecção de isquemia miocárdica. O objetivo deste estudo foi avaliar a acurácia diagnóstica da PMT em pacientes com bloqueio de ramo esquerdo (BRE) que estavam em pesquisa diagnóstica de doença arterial coronariana (DAC) e o valor adicional da PMT sobre a tomografia computadorizada com múltiplos detectores (ATC) usando tomógrafo com 320 detectores, e compará-los com a cintilografia de perfusão miocárdica (SPECT) para detecção de isquemia miocárdica com estenose coronariana significativ

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Bittencourt, Márcio Sommer. "Uso da angiografia coronária por tomografia computadorizada na avaliação prognóstica de pacientes com suspeita de doença arterial coronária." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-30102014-103401/.

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Introdução: Poucos estudos avaliaram o valor prognóstico em longo prazo da presença, extensão e gravidade da doença arterial coronária (DAC) detectada pela angiotomografia computadorizada de artérias coronárias (TCcor). Métodos: Todos os pacientes consecutivos sem DAC prévia que realizaram TCcor para avaliar DAC foram incluídos. Os resultados da TCcor foram classificados como normal, DAC não-obstrutiva (estenose < 50%), ou obstrutiva (>= 50%). Além disso, com base no número de segmentos com a doença, a DAC foi classificada como não-extensa (<= 4 segmentos) ou extensa (> 4 segmentos). Os pacien

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Mota, Igor Larchert. "Lesões coronárias em pacientes com doença pulmonar obstrutiva crônica (GOLD I a III) e doença arterial coronária suspeita ou confirmada." Pós-Graduação em Ciências da Saúde, 2018. http://ri.ufs.br/jspui/handle/riufs/7641.

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Fundação de Apoio a Pesquisa e à Inovação Tecnológica do Estado de Sergipe - FAPITEC/SE<br>BACKGROUND: Systemic inflammation is the pathophysiological link between coronary artery disease (CAD) and chronic obstructive pulmonary disease (COPD). However, the influence of underdiagnosed COPD on patients with suspected or diagnosed CAD is unknown. Therefore, the objective was to evaluate the degree of coronary involvement in COPD patients with suspected or confirmed CAD. Methods: For this cross-sectional study which we carried out March 2015 and June 2017, 210 outpatients with suspected or confirm

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Júnior, Roberto Nery Dantas. "Avaliação da perfusão miocárdica por TC com 320 colunas de detectores e por PET com Rubídio na investigação da doença arterial coronariana." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/5/5151/tde-12012018-090618/.

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Introdução: Na investigação não invasiva da doença arterial coronariana (DAC), destacam-se a tomografia computadorizada com 320 colunas de detectores (TC320) e a tomografia por emissão de pósitrons com Rubídio-82 (PET82Rb), por suas elevadas acurácias. A avaliação por imagem da perfusional miocárdica (MPI) por TC é predominantemente estática, em razão das limitações associadas à radiação ionizante. Avanços tecnológicos, como a reconstrução iterativa, permitiram o desenvolvimento de novos protocolos de aquisição multifásica, com baixa exposição à radiação. Objetivos: Avaliar a concordância entr

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Mesquita, Aline Monte de. "Acurácia da tomografia computadorizada de múltiplos detectores dual-source no diagnostico da doença arterial coronariana: revisão sistemática." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=1717.

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A Tomografia Computadorizada Dual-Source (TCDS) é uma tecnologia de imagem que permite a visualização da estenose coronária de uma maneira não-invasiva. Estudos recentes demonstraram uma alta acuracia deste teste diagnóstico, quando comparado ao padrão de referência, a angiografia coronária invasiva (ACI). O objetivo deste trabalho foi sintetizar as evidências de acurácia desta tecnologia por meio de uma revisão sistemática e uma síntese quantitativa (meta-análise) e avaliar possíveis diferenciais de acurácia relacionados aos seguintes subgrupos de pacientes: com frequência cardíaca elevada, a

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Falcão, João Luiz de Alencar Araripe. "Comparação das dimensões das artérias coronárias e da composição da placa aterosclerótica entre a angiografia coronária por tomografia de 64 colunas de detectores e a ultrassonografia intracoronária com a técnica de histologia virtual." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-11052010-133735/.

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Introdução: No momento, pouco se conhece sobre o desempenho diagnóstico da angiotomografia de coronárias com 64 colunas de detectores (Angio-TC 64) frente aos achados do ultrassom intracoronário com técnica de histologia virtual (USIC-HV). Este estudo compara a capacidade diagnóstica de ambos os métodos para a avaliação das dimensões vasculares e para avaliação da composição da placa aterosclerótica através da análise de toda extensão dos três vasos epicárdicos principais. Métodos e Resultados: Um total de 21 pacientes com diagnóstico de doença arterial coronária obstrutiva foi incluído neste

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Matos, Carlos José Oliveira de. "Escore de cálcio e redução luminal associado a funcionalidade e capacidade física em pacientes com doença arterial coronária." Pós-Graduação em Ciências da Saúde, 2017. http://ri.ufs.br/jspui/handle/riufs/7409.

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INTRODUCTION: The coronary computed tomography angiography (CTA) with evaluation of coronary artery calcium score (CACS) and coronary stenosis by reducing luminal is a method that enables evaluation of cardiovascular risk in patients with subclinical atherosclerosis. The diagnosis of coronary artery disease (CAD) may contribute to the perception of possible impact on daily activities that affect the autonomy of the person. OBJECTIVE: To evaluate the functionality and physical ability and your association with CACS and coronary stenosis in patients with CAD. METHODOLOGY: Cross-sectional

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