Relevant bibliographies by topics / Echocardiograph

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Echocardiograph'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Echocardiograph"

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Humagain, Sanjaya, Ramsundar Twayana, and Rajendra Koju. "Echocardiographic Profile of Patients in Dhulikhel Hospital, A Medical College Hospital in Nepal." Nepalese Heart Journal 11, no. 1 (September 1, 2014): 13–17. http://dx.doi.org/10.3126/njh.v11i1.10976.

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Background and Aim : Echocardiograph is an important diagnostic tool to evaluate cardiac disease and is indispensible for management. So it is important to know the spectrum of cardiac abnormalities that can be detected by echocardiograph and the frequency of these findings may vary depending on where the echocardiogram is performed. Aim of this study was to find out the spectrum of echocardiographic finding in different age group in a medical college hospital. Methods and materials : A retrospective observational study was done to at Dhulikhel Hospital to review Echocardiographic profile of 3310 patients who were indicated for echocardiogram over a period of 3 years. Data collected from echocardiograph report registry. Data analysis was done using SPSS 17. Result : Congenital Heart Disease(CHD) (37.74%),Normal finding( 21.19%), Pericardial Heart Disease(19.21%) and Rheumatic Heart Disease(RHD)(17.88%) were the echocardiographic finding in children. In adolescents and young adults Rheumatic Heart Disease (49.90%), Hypertensive Heart Disease (13.34%), Congenital Heart Disease (6.58%), and Pericardial Disease (4.38%) were found. Most common finding in middle age was cor-pulmonale (34.76%) followed by Diastolic Dysfunction (20.60%), Hypertensive Heart Disease(17.06%),Ischemic Heart Disease(IHD) (12.80%). In elderly age most common finding was Diastolic Dysfunction (57.14%). Conclusion : The spectrum of echocardiograph finding in a medical college hospital ranges from Congenital Heart Disease, Rheumatic Heart Disease, Ischemic Heart Disease ,Pericardial disease, Corpulmonale, Diastolic Dysfunction, systolic dysfunction and degenerative valve disease. Streptococcal sore throat leading to Rheumatic Heart Disease and complication of tuberculosis and parasitic infestation leading to pericardial diseases, as well as Hypertensive Heart Disease, and Ischemic Heart Disease constitutes burden in Nepal. Cor-pulmonale and ) Sanjaya Humagain, Ramsundar Twayana, Rajendra Koju. DOI: http://dx.doi.org/10.3126/njh.v11i1.10976 Nepalese Heart Journal 2014;11(1): 13-17
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DiLucente, Lorrie, and John Gorcsan III. "Transesophageal Echocardiograph." Dimensions of Critical Care Nursing 10, no. 2 (March 1991): 74–82. http://dx.doi.org/10.1097/00003465-199103000-00006.

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Kang, Heung Sun. "Stess Echocardiograph." Journal of the Korean Society of Echocardiography 9, no. 2 (2001): 93. http://dx.doi.org/10.4250/jkse.2001.9.2.93.

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Santarpia, Lidia, Roberta Esposito, Andrea Vaccaro, Lucia Alfonsi, Maria Carmen Pagano, Ciro Santoro, Maurizio Marra, Franco Contaldo, Maurizio Galderisi, and Fabrizio Pasanisi. "Cardiac Changes in Patients on Long-Term Parenteral Nutrition." Nutrients 11, no. 7 (July 13, 2019): 1587. http://dx.doi.org/10.3390/nu11071587.

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Patients with short bowel syndrome (SBS) on long-term home parenteral nutrition (HPN) chronically receive high fluid volumes directly into the right atrium (RA) through the superior vena cava. We retrospectively evaluated cardiac function measured by routine transthoracic echocardiography (TTE) in a population of 26 SBS patients on long-term HPN and compared their data on echocardiograph-derived right heart structure and function, with those of a control group of 26 patients also bearing a central venous catheter (CVC) for other reasons. Results showed that body weight and BMI were significantly higher in the control group. The echocardiographic estimate of RA pressure was higher in HPN patients than in controls (p = 0.01). An increased estimate of RA pressure indicates the need to consider TTE in the follow-up of long-term HPN patients to detect functional impairment early.
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Waleed, Madeeha. "Prevalence of different type of valvular heart disease and other cardiac pathologies of the heart in high risk patients with suspicion of heart failure. A retrospective cohort study." Clinical Cardiology and Cardiovascular Interventions 3, no. 9 (October 16, 2020): 01–07. http://dx.doi.org/10.31579/2641-0419/088.

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Background: Valvular heart disease and other cardiac pathologies are associated with impending heart failure. An early diagnosis of these can help prevent the disabling ad disastrous effects and improve the prognosis. Aim: The prevalence of various pathologies associated with heart failure is not known. This study helps in recognizing various pathologies that can lead to heart failure, which if diagnosed early can improve the patient’s outcome. Materials and Methods: A total of 4560 patients were included in the study. All the patients were aged greater than 15 years. Patients with suspicion of heart failure on symptoms were ordered echocardiography. Transthoracic echo was done using echocardiography ultrasound machine using the British Society of Echocardiography guidelines. Echocardiography was done by registered sonologists. Echocardiograph were later read by cardiologists. Data was collected on Excel sheet. Echocardiographic results Of 9 690 patients, were admitted to the hospital during the year 2013 to year 2017 with the suspicion of heart failure based on symptoms echocardiogram was ordered. Among these 2448 patients had normal echocardiographic findings were as 4560 had valvular disease. Among the valvular disease patients 2951(64.71%) were females and 1609(35.2%) were males. Among these 2950(64.6%) had mild valvular disease 959(21.0%) had moderate valvular disease and 651(14.2) patients had severe valvular disease. Mitral stenosis occurred in 1200(26.3%) patients, mitral regurgitation in 2953(64.7%) patients, tricuspid stenosis in 40 (0.008%)patients ,tricuspid regurgitation in 1592(34.8%) patients, aortic stenosis in 81 (0.017%) patients and aortic regurgitation in 1957(42.9%) patients. Ischemic cardiomyopathy was present in 24 patients, dilated cardiomyopathy in 14 patients, rheumatic heart disease in 23 patients, ventricular septum defect in 5 patients ,Atrial septum defect in 2 patients , Apical aneurysm formation in 4 patients, Uremic cardiomyopathy on 3 patients, Grade 1 diastolic dysfunction in 2200 patients, Grade 3 diastolic dysfunction in 400 patients, Bicuspid aortic valve in 5 patients and restrictive cardiomyopathy in two patients, 1100 patients had a thin rim of pericardial effusion and were ordered Thyroid function tests. Conclusion: In the community heart failure is a common cause of death. Various pathologies of the heart are predictors of the outcome and hence early diagnosis can help in proper treatment and increased survival
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Shim, Wan Joo, Woo Hyuk Song, Dong Kuy Jin, Do Sun Lim, Chang Gyu Park, Young Hoon Kim, Dong Joo Oh, and Young Moo Ro. "Comparison of Dobutamine Echocardiography and Contrast Echocardiograph in Patients with Myocardial Infarction." Korean Circulation Journal 26, no. 1 (1996): 62. http://dx.doi.org/10.4070/kcj.1996.26.1.62.

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Mancini, André Luís, Sonia Regina da Silva Carvalho, Maria do Carmo Valente de Crasto, and Ricardo Marques Dias. "Echocardiograph alterations in asthma patients." Revista Portuguesa de Pneumologia (English Edition) 14, no. 3 (May 2008): 363–77. http://dx.doi.org/10.1016/s2173-5115(08)70267-7.

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Rima, Rezoana, and Mohammad Abdullah Al Mamun. "Current Application of Functional/Targeted Echocardiogram in NICU: An Update." Cardiovascular Journal 10, no. 1 (October 22, 2017): 74–83. http://dx.doi.org/10.3329/cardio.v10i1.34367.

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Functional echocardiograph is the bedside use of cardiac ultrasound to monitor functional and hemodynamic changes longitudinally. It can assist in an understanding of pathophysiology of the rapidly changing neonatal hemodynamic status including cardiac function and systemic and pulmonary blood flow in critically ill preterm and term neonates. It also facilitates the evaluation of response to therapeutic intervention. This review examines the potential applications of functional echocardiography in different disease states, and how the technology may be introduced safely in the NICU.Cardiovasc. j. 2017; 10(1): 74-83
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Oyedeji, Adebayo T., Adeseye A. Akintunde, Olukolade O. Owojori, and Johnson O. Peter. "Spectrum of Echocardiography Abnormalities among 168 Consecutive Referrals to an Urban Private Hospital in South-Western Nigeria." Clinical Medicine Insights: Cardiology 8 (January 2014): CMC.S14320. http://dx.doi.org/10.4137/cmc.s14320.

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Trans-thoracic echocardiography (TTE) is an important non-invasive cardiac examination that provides structural and functional information. It is useful in the diagnosis of cardiac diseases and often guides the management and follow-up of patients with cardiovascular diseases (CVD). The study aimed to present an audit of the echocardiograms performed in an urban private hospital over a two-year period in order to define the pattern of cardiac diseases in our center. Echocardiogram reports of 168 consecutive patients performed between May 2011 and April 2013 at an organized private sector hospital in Lagos, south-west Nigeria were reviewed. Studies were performed with a Toshiba Nemio XG ultrasound machine. The data obtained were analyzed for mean age, sex, clinical indications, and echocardiographic diagnosis in the study subjects. A total of 168 echocardiography reports were examined, comprising of 92 males (54.8%) and 76 females (45.2%). The age range of the subjects was 10-76 years (mean 42.5 ± 12.1 years). The commonest indication for echocardiography was systemic hypertension and hypertension related causes (38.1%), followed by abnormal resting electrocardiogram (14.9%). Routine annual medical screening was the next most common indication, representing 13.1% of the indications for echocardiography. The other indications are as presented in Table 1 . The echocardiogram was normal in 64.3% of the subjects. The commonest abnormality detected was hypertensive heart disease (HHD); accounting for 9.6% of the subjects studied. Isolated atrial enlargement (left, right, or bi-atrial) was the next most common abnormality accounting for 6% of the echocardiographic diagnosis. Pulmonary hypertension was the next most common diagnosis accounting for 4.8% of our findings. The other echocardiographic diagnoses are as listed in Table 2 . Hypertension represents the commonest indication for echocardiography. Normal echocardiogram was the commonest echocardiographic finding while HHD was the commonest echocardiographic abnormality. The prevalence of ischemic heart disease by echocardiography was 2.4%. There was no case of rheumatic heart disease (RHD). The prevalence of hypertrophic cardiomyopathy (HCM) was 1.2%. Ease of access to echocardiography may influence the findings in an echocardiographic audit and policy makers should incorporate appropriateness criteria into their guidelines for reimbursement.
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Culp, Benjamin C., Jonathan D. Mock, Christopher D. Chiles, and William C. Culp. "The Pocket Echocardiograph: Validation and Feasibility." Echocardiography 27, no. 7 (April 16, 2010): 759–64. http://dx.doi.org/10.1111/j.1540-8175.2009.01125.x.

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Dissertations / Theses on the topic "Echocardiograph"

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Mulet, Parada Miguel. "Intensity independent feature extraction and tracking in echocardiographic sequences." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343557.

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Otsuki, Denise Aya. "Hemodiluição normovolêmica aguda: estudo experimental comparativo utilizando amido hidroxietílico a 6% ou solução de Ringer lactato." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-03022005-113414/.

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Hemodiluição normovolêmica aguda é um procedimento utilizado para diminuir a necessidade de transfusões sangüíneas em diversas cirurgias de grande porte. Poucos trabalhos avaliam as alterações hemodinâmicas e perfusão tecidual através de estudo ecocardiográfico e tonometria gástrica. Foram utilizados 23 porcos (peso 46.6 ± 6.0 kg) anestesiados com quetamina, fentanil e propofol e instrumentados para monitorização hemodinâmica convencional. Os animais foram randomizados em três grupos 30 minutos após estabilização da anestesia: Grupo I (Controle), Grupo II (amido hidroxietílico) e Grupo III (Ringer lactato). Os animais do grupo II e III foram submetidos ao protocolo de hemodiluição com hematócrito alvo de 15%. A retirada de sangue foi realizada em 30 minutos e a expansão plasmática feita simultaneamente com amido hidroxietílico ou Ringer lactato nas proporções de 1:1 ou 1:3 em relação ao sangue retirado. Os parâmetros hemodinâmicos e de oxigenação, pH gástrico, ecocardiografia transesofágica (fração de ejeção através do método Simpson) foram coletados antes da hemodiluição (T0), no fim do procedimento de hemodiluição (T1) e após uma e duas horas (T2, T3). Os dados foram submetidos a análise de variância para medidas repetidas, seguida pelo teste Tukey e teste T student. Resultados: Em relação aos parâmetros do grupo controle, não houve diferença significante durante todo o procedimento. No grupo II e grupo III, houve aumento no índice cardíaco após hemodiluição (T0=5,80±1,46; T1=10,64±1,69 L.min-1.m2 e T0=5,53±1,18, T1=7,91±1,40 L.min-1.m2 respectivamente), e diminuição do índice de resistência vascular sistêmica (T0=1753±336, T1=822±140 dina.s.cm-5.m-2 e T0=1673±566, T1=1026±190 dina.s.cm-5.m-2 respectivamente), ambos estatisticamente significante. A fração de ejeção apresentou aumento significativo após a hemodiluição no grupo II. O pH gástrico diminuiu significativamente no grupo III. O lactato arterial aumentou de forma significante no grupo III após a hemodiluição. A microscopia eletrônica do ventrículo esquerdo mostraram discreta destruição de miofilamentos no grupo II. Houve destruição importante nas miofibrilas no grupo III. Conclusão: Estes resultados sugerem que na hemodiluição moderada a grave, o amido hidroxietílico consegue preservar melhor a estabilidade hemodinâmica do que a solução de Ringer lactato.
Normovolemic acute hemodilution is a procedure utilized to decrease the needs of blood transfusion during a variety of surgical procedures. Nevertheless, there are few works that evaluate its pulmonary effects as well as hemodynamic changes by means of echocardiography and tonometric evaluation. Methods: 23 anesthetized pigs (weight 46.6 ± 6.0 kg) were instrumented for standard hemodynamic monitoring. In order to prevent possible effects of inhaled anesthetics on pulmonary mechanics, intravenous anesthesia was chosen and consisted of ketamine, fentanyl and propofol administered throughout the study. Thirty minutes after anesthesia stabilization animals were randomized in three groups: Group I (Control), Group II (hydroxyethyl starch) and Group III (Lactated Ringer’s). Animals of group II and III were submitted to acute normovolemic hemodilution to reach a pre-established hematocrit around 15%. Blood withdrawal was accomplished in thirty minutes and plasma expansion was performed simultaneously with hydroxyethyl starch or Lactated Ringer’s administered in a proportion of 1:1 or 3:1 in relation to the amount of bloods withdrawn. Hemodynamic, gastric pH, transesophageal echography (ejection fraction, by Simpon method) and oxygen transport were measured before blood withdrawal (T0), at the end of hemodilution (T1), one and two hours after the end of hemodilution (T2, T3). Data were submitted to analysis of Variance for repeated measures followed by the Tukey test and also to a student T test. Results: In regard to all parameters of Group I (Control), there were no significant difference during the whole procedure. In Group II and Group III, there was an increase in cardiac index after hemodilution (T0=5.80±1.46; T1=10.64±1.69 L.min-1.m2 and T0=5.53±1.18, T1=7.91±1.40 L.min-1.m2), and a decrease in systemic vascular resistance index (T0=1753±336, T1=822±140 dyne.s.cm-5.m-2 and T0=1673±566, T1=1026±190 dyne.s.cm-5.m-2), both statistically significant. Ejection Fraction increased significantly after hemodilution in group II. Gastric pH decreased significantly in Group III, and arterial lactate increased significantly after hemodilution in group III. Electron microscopy of left ventricular bipsies showed a slight destruction in filament and preserved myofibrillar ultrastructure in group II. There was important destruction in myofibrillar ultrastructure in group III. Conclusion: These results suggest that in severe hemodilution, hydroxyethyl starch preserves hemonodynamic stability better than Lactate Ringer’s.
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Huez, Sandrine. "Contribution à l'étude de la circulation pulmonaire et de la fonction ventriculaire droite dans l'hypertension pulmonaire: apports de l'échocardiographie et de l'imagerie par Doppler tissulaire." Doctoral thesis, Universite Libre de Bruxelles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210379.

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Campos, Paulo César Gobert Damasceno [UNIFESP]. "Regurgitação valvar funcional em insuficiência cardíaca congestiva descompensada: monitoração não-invasiva por bioimpedância cardíaca e ecocardiografia e resposta à terapêutica." Universidade Federal de São Paulo (UNIFESP), 2009. http://repositorio.unifesp.br/handle/11600/10021.

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Made available in DSpace on 2015-07-22T20:50:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-11-25. Added 1 bitstream(s) on 2015-08-11T03:25:54Z : No. of bitstreams: 1 Publico-11760a.pdf: 1069601 bytes, checksum: 88c7a2d10e394e1888e3b93a69070de4 (MD5). Added 1 bitstream(s) on 2015-08-11T03:25:54Z : No. of bitstreams: 2 Publico-11760a.pdf: 1069601 bytes, checksum: 88c7a2d10e394e1888e3b93a69070de4 (MD5) Publico-11760b.pdf: 1959621 bytes, checksum: 2665d88fb8fec237d73fdc84aa78a26a (MD5)
Introdução: A insuficiência cardíaca congestiva (ICC) descompensada pode ser definida como a evidência de sinais e sintomas de insuficiência cardíaca (IC) ao repouso e representa estado de ativação neuro-hormonal intensa, secundária ao déficit de perfusão renal. Regurgitações valvares funcional mitral e tricúspide são causas reversíveis de diminuição de fluxo sanguíneo sistêmico eficaz. O impacto de tais regurgitações sobre o débito cardíaco, sobre o conteúdo de fluido torácico, sobre as dimensões de câmaras cardíacas e sobre a função do aparato valvular pode ser monitorado de forma não-invasiva, antes e após a otimização do tratamento clínico. Objetivo: Avaliar o papel das regurgitações valvares funcional mitral e tricúspide como causas reversíveis de redução do débito cardíaco em ICC descompensada, e que acompanham a disfunção ventricular sistólica em miocardiopatias isquêmica e não-isquêmica. Métodos: catorze pacientes do sexo masculino (66 ± 8 anos de idade), fração de ejeção (24 ± 5%) secundária às miocardiopatias isquêmica (71%) e não-isquêmica (29%), apresentaram ICC descompensada com evidência clínica de regurgitações valvares mitral e tricúspide, foram avaliados por Bioimpedância cardíaca e ecocardiografia antes e uma semana após otimização de tratamento clínico. Resultados: o tratamento farmacológico de ICC descompensada foi acompanhado de redução de peso corpóreo de 82,9 a 76 kg (P<0,01), elevação no índice cardíaco (de 2,1 para 2,6 L/min/m2; P<0,01), redução na pressão sistólica da artéria pulmonar (de 58 para 35 mm Hg; P<0,001), conteúdo de fluido torácico (de 39 para 32 kOhm; P<0,001) e resistência vascular sistêmica (de 1633 para 1209 dinas/seg/cm5; P<0.001). A melhora dessas regurgitações incluiu redução nas dimensões das câmaras atriais esquerda e direita (de 27 para 24 cm2 e de 26 para 23 cm2, respectivamente; (P<0,001), diminuição das regurgitações mitral e tricúspide detectadas pelo Doppler colorido (P < 0,01), do volume regurgitante mitral (de 105 para 65 ml; P<0,001), e do tamanho efetivo do orifício regurgitante mitral (de 0,8 para 0,6 cm2; P<0,01). Conclusões: Na ICC descompensada, as regurgitações funcionais mitral e tricúspide contribuem para redução do débito cardíaco, aumento do conteúdo fluido torácico e da resistência vascular sistêmica, simultaneamente ao aumento de câmaras atriais e do orifício valvar, os quais podem ser melhorados com tratamento clínico. A bioimpedância cardíaca e a ecocardiografia fornecem avaliação seriada não-invasiva de parâmetros hemodinâmicos e função valvar nestes pacientes.
Objective: We hypothesized that functional mitral and tricuspid valvular incompetence (MR and TR, respectively) are reversible causes of reduced cardiac output in decompensated heart failure (DF) that accompanies systolic dysfunction in ischemic or nonischemic cardiomyopathy. Background: DF, defined as signs and symptoms of heart failure at rest, is rooted in a salt-avid state transduced by neurohormonal activation secondary to impaired renal perfusion. Functional MR and TR are reversible causes of reduced systemic blood flow. Their impact on cardiac output, thoracic fluid content, cardiac chamber dimensions, and valvular apparatus function can be monitored noninvasively, before and after optimized medical management. Methods: Fourteen male subjects (66 ± 8 years old) with reduced ejection fraction (24 ± 5%) secondary to ischemic (71%) or nonischemic (29%) cardiomyopathy, who developed DF with clinical evidence of mitral (MR) and tricuspid (TR) valvular incompetence, were each assessed by bioimpedance and echocardiography before and 1 week after optimized medical management restored compensated failure. Results: Pharmacologic elimination of DF was accompanied by a reduction in body weight (p<0.01). Hemodynamic improvements included a rise in cardiac index (2.1 to 2.6 L/min/m2; p<0.01) and a reduction in predicted pulmonary artery systolic pressure (58 to 35 mm Hg; p<0.001), thoracic fluid content (39 to 32 kOhm; p<0.001), and systemic vascular resistance (1633 to 1209 dynes/sec/cm5; p<0.001). Improvements in functional MR and TR included reductions in left and right atrial areas (27 to 24 cm and 26 to 23 cm2, respectively; p<0.001), color-flow grading of MR and TR severity (p<0.01), mitral regurgitant volume (105 to 65 mL; p<0.001), and effective MR orifice size (0.8 to 0.6 cm2; p<0.01). Conclusions: In DF, functional MR and TR contribute to reduced cardiac output, increased thoracic fluid content, and systemic vascular resistance, together with enlarged atria and valvular orifice size, which can be improved by medical management. Bioimpedance and echocardiography provide for serial noninvasive assessments of hemodynamic status and valvular function in such cases.
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Fayssoil, Abdallah. "Phénotypage cardiaque des dystrophies musculaires à l'aide des ultrasons." Thesis, Versailles-St Quentin en Yvelines, 2014. http://www.theses.fr/2014VERS0062/document.

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Les myopathies d’origine génétique sont des pathologies musculaires en rapport avec des anomalies génétiques. Les myopathies sont à l’origine d’un handicap physique majeur et affectent souvent la fonction respiratoire et parfois le cœur. Nous nous sommes intéressés à la caractérisation myocardique de 4 types de myopathies d’origine génétique à l’aide de l’échocardiographie Doppler : myopathie de Duchenne, sarcoglycanopathies, MELAS syndrome et maladie de Pompe.Nous avons analysé la fonction cardiaque dans 2 modèles murins de dystrophies musculaires: la souris mdx et la souris sgca null. En clinique, nous avons analysé la fonction cardiaque des sujets atteints de myopathie de Duchenne, de sarcoglycanopathies, de MELAS syndrome et de maladie de Pompe en échocardiographie Doppler.Dans les modèles animaux, nous avons retrouvé des anomalies myocardiques chez la souris mdx et chez la souris sgca null. Chez l’homme, l’atteinte myocardique est sévère chez les sujets atteints de myopathie de Duchenne et certains patients présentent un asynchronisme ventriculaire soulevant les indications éventuelles de resynchronisation myocardique. Les sujets atteints de gamma sarcoglycanopathies présentent de façon significative des anomalies de contraction du ventricule gauche comparativement aux sujets atteints d’alpha-sarcoglycanopathies. La fonction ventriculaire droite et gauche est préservée chez les sujets atteints de maladie de Pompe. Les sujets atteints de MELAS présentent des hypertrophies du ventricule gauche. L’analyse génétique retrouve une corrélation significative entre le taux d’hétéroplamie et la survenue d’événements cliniques
Muscular dystrophies are genetic neuromuscular disorders that affect skeletal muscle. We sought to assess heat involvement in four genetic muscular disorders : Duchenne muscular dystrophy, sarcoglycanopathies, MELAS and adulte Pompe disease. In animal models, we sought to assess, using Echocardiography Doppler, mdx mice and sgca null mice. Myocardiac abnormalities were found in mdx mice and sgca null mice. Clinical studies found severe cardiac impairment in Duchenne muscular dystrophies and ventricular asynchrony was found in patients with severe heart failure. Patients with gamma sarcoglycanopathy have significant alteration of left ventricular function in comparison with patients with alpha sarcoglycanopathy. Left and right ventricular function were preserved in patients with Pompe disease. Left ventricular hypertrophy was found in patients with MELAS. Genetic analysis disclosed significant correlation between heteroplasmy and significant clinical events
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Karagiannis, Stefanos E. "Clinical stress echocardiography." [S.l.] : Rotterdam : [The Author] ; Erasmus University [Host], 2007. http://hdl.handle.net/1765/10524.

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Voormolen, Marco Marien. "Three dimensional harmonic echocardiography." [S.l.] : Rotterdam : [The Author] ; Erasmus University [Host], 2007. http://hdl.handle.net/1765/10598.

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Krenning, Boudewijn Juriaan. "Quantitative Three-dimensional Echocardiography." [S.l.] : Rotterdam : [The Author] ; Erasmus University [Host], 2007. http://hdl.handle.net/1765/10695.

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Williams, Quentin. "Contrast echocardiography perfusion imaging." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427650.

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Yao, Cheng. "3D echocardiography image compounding." Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/3d-echocardiography-image-compounding(5e1b0ddd-6d47-4305-8de4-aa2260489131).html.

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Echocardiography (echo) is a widely available method to obtain images of the heart, however, echo can suffer due to the presence of artefacts, high noise and a restricted field-of-view. One method to overcome these limitations is to use multiple images, using the "best" parts from each image to produce a higher quality "compounded" image. This thesis describes a new method to allow multiple 3D echo images to be compounded into a single better quality volume. I have proposed a definition for an "ideal" compounded image and have used this to guide the design of my compounding method, in particular designing a method to reduce the effect of image artefacts and to make use of larger numbers of images. My compounding method has been validated using phantom, volunteer and clinical images. The overall motivations for improving echo image quality are twofold: Firstly to provide clinicians with higher quality images which I hope will improve the accuracy of clinical decision making. Secondly to provide higher quality images for subsequent post-processing algorithms. A number of methods have been proposed to compound sets of ultra-sound images, all of which have reported improvements in image quality. However, previous 3D compounding methods have typically been applied to a relatively small number of images (most of them only use two images, and only one uses six images). I have investigated the effect of compounding with larger numbers of images. Results showed continued improvement in image quality up to ten images (the maximum number we deemed feasible to acquire in a clinical setting and it is approximately double of images used previously). Artefacts occur regularly within echo images, particularly shadowing artefacts (due to the highly reflecting interfaces caused by the ribs and lungs when imaging the heart). However, previous 3D compounding methods haven’t directly claimed and demonstrated the effect of artefacts. Therefore, I have proposed a 3D compounding algorithm which specifically aims to reduce the effect of echo artefacts (shadowing) as well as improving the signal-to-noise ratio, contrast, and extending the field-of-view. My method to reduce the effect of artefacts is to weight image information from different views based on a local feature coherence/consistency. I hypothesize that the presence of an artefact in an image varies greatly depending on view direction, therefore much lower consistency values will be calculated for artefact regions enabling them to be detected, and their influence on the compounded image to be greatly reduced. The accuracy of the image registration is important and errors will likely affect the final compounded images quality. In addition to registration ac-curacy my system needs to work robustly and have a large enough capture range to enable automatic registration from a suitable starting position.
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Books on the topic "Echocardiograph"

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Oh, Jae K. The echo manual. 2nd ed. Philadelphia: Lippincott-Raven, 1999.

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Oh, Jae K. The echo manual: From the Mayo Clinic. Boston: Little, Brown, 1994.

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Echocardiography: The normal examination and echocardiographic measurements. Manly, Queensland: MGA Graphics, 2000.

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Echocardiographic anatomy: Understanding normal and abnormal echocardiograms. Stamford, Conn: Appleton & Lange, 1996.

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Atlas of echocardiography. 2nd ed. Philadelphia: Saunders, 1985.

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C, Pearson Anthony, ed. Transesophageal echocardiography: Basic principles and clinical applications. Philadelphia: Lea & Febiger, 1992.

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Echocardiography. 5th ed. Philadelphia: Lea & Febiger, 1994.

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Kisslo, Joseph A. (Joseph Andrew), 1941- and SpringerLink (Online service), eds. Echocardiography. London: Springer-Verlag London, 2009.

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Nihoyannopoulos, Petros, and Joseph Kisslo, eds. Echocardiography. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71617-6.

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Nihoyannopoulos, Petros, and Joseph Kisslo, eds. Echocardiography. London: Springer London, 2009. http://dx.doi.org/10.1007/978-1-84882-293-1.

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Book chapters on the topic "Echocardiograph"

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Sadeghpour, Anita, Azin Alizadehasl, and Maryam Forouzesh. "Transthoracic Echocardiography, Standard Windows and Echocardiographic Views." In Case-Based Textbook of Echocardiography, 15–28. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67691-3_2.

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Punn, Rajesh, Mark K. Friedberg, and Norman H. Silverman. "Echocardiography." In Pediatric Cardiovascular Medicine, 113–56. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781444398786.ch8.

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Blanchard, Daniel G., and Anthony N. DeMaria. "Echocardiography." In Essential Cardiology, 113–37. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6705-2_8.

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Sullivan, I. D., and V. M. Gooch. "Echocardiography." In Surgery for Congenital Heart Defects, 33–61. Chichester, UK: John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470093188.ch3.

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Chesler, Elliot. "Echocardiography." In Clinical Cardiology, 68–87. New York, NY: Springer New York, 1993. http://dx.doi.org/10.1007/978-1-4613-9183-8_5.

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Côté, Etienne, Kristin A. MacDonald, Kathryn M. Meurs, and Meg M. Sleeper. "Echocardiography." In Feline Cardiology, 51–67. West Sussex, UK: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118785782.ch7.

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Haley, Shelley Rahman. "Echocardiography." In Cardiac Surgery, 23–39. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24174-2_3.

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Zardkoohi, Omeed, and Richard A. Grimm. "Echocardiography." In Cardiovascular Hemodynamics, 99–128. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-60761-195-0_6.

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He, Sheng. "Echocardiography." In Atlas of Human Body Ultrasound Scanning, 69–118. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5834-9_6.

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Pandit, Rahul. "Echocardiography." In ICU Protocols, 187–96. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0898-1_19.

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Conference papers on the topic "Echocardiograph"

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Glöckner, Erika, Christian Breitling, Andreas Brcic, and Raoul Breitkreutz. "The Emergency Echocardiography Simulation Test: A new assessment tool for echocardiographic findings related to peri-resuscitation care." In Interdisziplinärer Kongress | Ultraschall 2022. Georg Thieme Verlag, 2022. http://dx.doi.org/10.1055/s-0042-1749571.

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Hashimoto, Tomoshige, Yuuki Shida, Souto Kumagai, and Hiroyasu Iwata. "Development of a Seated Echocardiography Robot - Lung volume and body posture conditions that enable clear mitral valve echocardiographic images -." In 2023 IEEE/SICE International Symposium on System Integration (SII). IEEE, 2023. http://dx.doi.org/10.1109/sii55687.2023.10039203.

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Keshavarz-Motamed, Zahra, Nima Maftoon, and Lyes Kadem. "An Analytical Model of the Instantaneous Transvalvular Pressure Gradient Through an Aortic Stenosis." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-31099.

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Diagnosis and treatment of aortic stenosis largely depends on accurate determination of the pressure difference before and after the valve, known as transvalvular pressure gradient (TPG). Clinically, TPG is obtained using Doppler echocardiography though sometimes invasive cardiac catheterization has to be used to confirm Doppler echocardiography findings. By solving analytically coupled fluid and solid domain equations, we suggest a formulation that with a good degree of accuracy can be used to calculate TPG. Analytical result is validated using experimental data from literature. The suggested methodology is an alternative to cardiac catheterization and helps to prevent its risks.
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Sebrechts, Marc M., C. Carl Jaffe, and Patrick Lynch. "Hypermedia and echocardiography." In the SIGCHI conference. New York, New York, USA: ACM Press, 1991. http://dx.doi.org/10.1145/108844.108990.

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Balasingam, Manohari, and Sivalingam Balasingam. "Future of Tele-echocardiography." In Annual Global Healthcare Conference. Global Science & Technology Forum (GSTF), 2015. http://dx.doi.org/10.5176/2251-3833_ghc15.55.

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Abdushi, Sejran, Fadil Kryeziu, and Shpend Abdushi. "Echocardiography in Emergency Room." In University for Business and Technology International Conference. Pristina, Kosovo: University for Business and Technology, 2018. http://dx.doi.org/10.33107/ubt-ic.2018.358.

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Ebadollahi, Shahram, Shih-Fu Chang, Henry D. Wu, and Shin Takoma. "Echocardiogram video summarization." In Medical Imaging 2001, edited by Michael F. Insana and K. Kirk Shung. SPIE, 2001. http://dx.doi.org/10.1117/12.428229.

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Prokšelj, Katja. "ECHOCARDIOGRAPHY OF THE MITRAL VALVE." In International Symposium MITRAL VALVE DISEASES IN CHILDREN AND ADULTS. Akademija nauka i umjetnosti Bosne i Hercegovine, 2014. http://dx.doi.org/10.5644/pi2017.168.03.

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Burman, A., S. Khan, A. Khushu, and W. Kelsall. "G577(P) Targeted neonatal echocardiography." In Royal College of Paediatrics and Child Health, Abstracts of the RCPCH Conference–Online, 25 September 2020–13 November 2020. BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health, 2020. http://dx.doi.org/10.1136/archdischild-2020-rcpch.494.

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Mazaheri, Samaneh, Puteri Suhaiza Binti Sulaiman, Rahmita Wirza, Fatimah Khalid, Suhaini Kadiman, Mohd Zamrin Dimon, and Rohollah Moosavi Tayebi. "Echocardiography Image Segmentation: A Survey." In 2013 International Conference on Advanced Computer Science Applications and Technologies (ACSAT). IEEE, 2013. http://dx.doi.org/10.1109/acsat.2013.71.

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Reports on the topic "Echocardiograph"

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Spitsina, S. S. ECHOCARDIOGRAPHIC ASSESSMENT OF LEFT HEART FUNCTION IN PATIENTS WITH RHEUMATOID ARTHRITIS. DOI CODE, 2021. http://dx.doi.org/10.18411/wco-iof-esceo-2021-389.

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Boyd, Sheri Y. N. Remote Echocardiography: Proof of Concept for Support of National Disasters, Combat and Humanitarian Mission. Fort Belvoir, VA: Defense Technical Information Center, November 2001. http://dx.doi.org/10.21236/ada401182.

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Nikitina, N. V., N. V. Aleksandrova, and A. V. Aleksandrov. Determining the severity of valvular calcification according to echocardiography in patients with rheumatoid arthritis. ООО ИМА-Пресс, 2018. http://dx.doi.org/10.18411/1995-4484-2018-56-3(2)-57.

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Anderson, Kenton L., Maria G. Castaneda, Susan M. Boudreau, Toni M. Vargas, LeeAnn Zarzabal, Joe Sontgerath, and Vikhyat S. Bebarta. Quality of Cardiopulmonary Resuscitation When Directing the Area of maximal Compression by Transesophageal Echocardiography During Cardiac Arrest in Swine (Sus scrofa). Fort Belvoir, VA: Defense Technical Information Center, December 2013. http://dx.doi.org/10.21236/ada596637.

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Karatancheva, Blagorodna, Bozhidar Finkov, Vasil Velchev, Emilia Naseva, and Arman Postadzhiyan. Echocardiographic Restenosis after Successful Balloon Dilatation of the Mitral Valve with the Inoue Technique: Experience of a Bulgarian Centre. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, August 2020. http://dx.doi.org/10.7546/crabs.2020.08.15.

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Runjic, Frane, Andrija Matetic, Matjaz Bunc, Nikola Crncevic, and Ivica Kristic. Small Degenerated Surgical Bioprosthetic Valve should be Treated with SupraAnnular Valve-in-Valve Transcatheter Aortic Valve Replacement. Science Repository, December 2021. http://dx.doi.org/10.31487/j.jicoa.2021.04.02.

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Background: Patient-prothesis mismatch (PPM) is a serious potential complication following surgical aortic valve replacement (SAVR). If it develops, valve-in-valve transcatheter aortic valve replacement (TAVR) is a reasonable therapeutic option. However, there is low evidence on the management of small degenerated surgical bioprosthetic valves, not prone to balloon-valve fracture (BVF). Case Presentation: This case report presents a successful valve-in-valve TAVR in acute heart failure due to degenerative surgical bioprosthetic valve Trifecta (21 mm) that is not susceptible to BVF. Standard preparation for transfemoral TAVR with a self-expandable valve was conducted, including the over-the-wire pacing. Thereafter, a successful valve-in-valve primary implantation of the self-expanding, supra-annular valve Evolut R 26 (Medtronic™) has been achieved. Follow-up at 3 months showed mild paravalvular leak in the region with clinical and heart function improvements of the patient. Follow-up echocardiographic parameters showed the reduction of anterograde flow impairment and improved effective orifice area (~0.85 cm2/m2). Conclusion: In conclusion, supra-annular valve-in-valve TAVR is a potential therapeutic option for PPM of small degenerated surgical bioprosthetic valves which are not prone to BVF.
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