An Inverse Finite Element Method for Determining the
... experimentally measured LV internal cavity volumes. An inverse FE approach is a complex engineering process that can determine the unknown causes of known consequences. This approach has the advantage that the determination of the dynamic properties is measured non-invasively [14–17]. A novel method ...
... experimentally measured LV internal cavity volumes. An inverse FE approach is a complex engineering process that can determine the unknown causes of known consequences. This approach has the advantage that the determination of the dynamic properties is measured non-invasively [14–17]. A novel method ...
The hemudynamic effects of ventrkuiar pacing with and
... ejection. When ventricular contraction occurs without a preceding atria1 contraction, significant regurgitation into the atrium occurs.le~ l7 When atrial contraction occurs very late in ventricular systolejust before opening of the AV valve-there is a significant decrease in end-diastole volume and ...
... ejection. When ventricular contraction occurs without a preceding atria1 contraction, significant regurgitation into the atrium occurs.le~ l7 When atrial contraction occurs very late in ventricular systolejust before opening of the AV valve-there is a significant decrease in end-diastole volume and ...
Echocardiographic Evaluation of Pericardial Disease
... function in that it contributes to maintaining accumulated blood in a liquid state1-2,4. Much of the microphysiologic function of the pericardium is not completely understood. Normally during spontaneous respiration, changes in intrathoracic pressures are nearly equally transmitted to the pericardia ...
... function in that it contributes to maintaining accumulated blood in a liquid state1-2,4. Much of the microphysiologic function of the pericardium is not completely understood. Normally during spontaneous respiration, changes in intrathoracic pressures are nearly equally transmitted to the pericardia ...
From Incidental, Mechanically-Induced Arrhythmias to Reflex
... to be harnessed for reversing breakdown in these communications in diseased states. The work by Vaseghi and Shivkumar.37 showed that both sympathetic and parasympathetic nervous systems are intricately involved in the modulation of cardiac excitability and arrhythmias; neural remodeling creates the ...
... to be harnessed for reversing breakdown in these communications in diseased states. The work by Vaseghi and Shivkumar.37 showed that both sympathetic and parasympathetic nervous systems are intricately involved in the modulation of cardiac excitability and arrhythmias; neural remodeling creates the ...
Anatomy and Physiology of the Heart
... Semilunar Valves Aortic Valve-Between the left ventricle and the aorta. ...
... Semilunar Valves Aortic Valve-Between the left ventricle and the aorta. ...
Echocardiographic diastolic parameters and risk of atrial
... Doppler image obtained through placement of the cursor at the mitral valve leaflet tips in the apical four-chamber view,20 with measurements of peak E and A velocities, and velocity time integrals taken on the same image. We also included ratios of peak early-to-late velocity (E/A ratio) and ratio o ...
... Doppler image obtained through placement of the cursor at the mitral valve leaflet tips in the apical four-chamber view,20 with measurements of peak E and A velocities, and velocity time integrals taken on the same image. We also included ratios of peak early-to-late velocity (E/A ratio) and ratio o ...
MAIN TRIBUTARIES OF THE CORONARY SINUS IN THE
... ABSTRACT: The coronary sinus collects blood from the heart walls. Only few authors have described the coronary sinus in the primates' heart. Its main tributaries are: great cardiac vein, the posterior vein of the left ventricle, the oblique vein of the left atrium, the middle cardiac vein and the sm ...
... ABSTRACT: The coronary sinus collects blood from the heart walls. Only few authors have described the coronary sinus in the primates' heart. Its main tributaries are: great cardiac vein, the posterior vein of the left ventricle, the oblique vein of the left atrium, the middle cardiac vein and the sm ...
Relation Between Right Ventricular Function and Increased Right
... related to increased RV FDG uptake (r⫽0.36, P⫽0.04) but not LV FDG uptake (r⫽⫺0.02, P⫽0.91), nor was it related to the ratio of whole RV to LV uptake (r⫽0.05, P⫽0.85; Figure 5). When a partial-volume correction was considered in a smaller cohort (n⫽16 for whom both RVSP and RV wall thickness could b ...
... related to increased RV FDG uptake (r⫽0.36, P⫽0.04) but not LV FDG uptake (r⫽⫺0.02, P⫽0.91), nor was it related to the ratio of whole RV to LV uptake (r⫽0.05, P⫽0.85; Figure 5). When a partial-volume correction was considered in a smaller cohort (n⫽16 for whom both RVSP and RV wall thickness could b ...
Is right ventricular outflow tract pacing superior to right ventricular
... this conclusion. This might be caused by the development of systolic and diastolic dyssynchrony through separate mechanisms [17, 18]. In our study, different from the conclusion by Hemayat S et al [14], MR and TR of both groups worsened between pre-operation and longterm follow-up. Increased TR resu ...
... this conclusion. This might be caused by the development of systolic and diastolic dyssynchrony through separate mechanisms [17, 18]. In our study, different from the conclusion by Hemayat S et al [14], MR and TR of both groups worsened between pre-operation and longterm follow-up. Increased TR resu ...
B. N. SATYANARAYANA RAO, JAMES H. MOLLER and JESSE E.... 1969;40:583-588 doi: 10.1161/01.CIR.40.4.583
... A 12-year-old boy, on admission to the University of Minnesota Hospitals, presented a history of well-being until 2 years earlier when dizzy spells, syncope, headaches, and chest pain began. Initially, these symptoms were considered to have resulted from an automobile accident in which the boy had b ...
... A 12-year-old boy, on admission to the University of Minnesota Hospitals, presented a history of well-being until 2 years earlier when dizzy spells, syncope, headaches, and chest pain began. Initially, these symptoms were considered to have resulted from an automobile accident in which the boy had b ...
Cryoablation Lesion with Atrial Arrhythmia after Fontan Operation
... Origin of Atrial Fibrillation Paroxysmal AF Originates from ectopic beats in the pulmonary veins in 94% of cases . This likely relates to the anatomic transition from pulmonary vein endothelium to left atrial endocardium; at this junction, two types of tissue with different electrical properties a ...
... Origin of Atrial Fibrillation Paroxysmal AF Originates from ectopic beats in the pulmonary veins in 94% of cases . This likely relates to the anatomic transition from pulmonary vein endothelium to left atrial endocardium; at this junction, two types of tissue with different electrical properties a ...
Feature Extraction for Detection of Ventricular Tachycardia and
... ventricular arrhythmias such as ventricular tachycardia (VT) and ventricular fibrillation (VFIB) are life threatening. Hence, it is very important to detect features that can be used to differentiate between the two for reliable design of an arrhythmia detecting system. The detection of this cardiac ...
... ventricular arrhythmias such as ventricular tachycardia (VT) and ventricular fibrillation (VFIB) are life threatening. Hence, it is very important to detect features that can be used to differentiate between the two for reliable design of an arrhythmia detecting system. The detection of this cardiac ...
Leiomyosarcoma of the Inferior Vena Cava - Heart
... stage of the illness, the liver was not enlarged. A few months after delivery her complaints reappeared, but at this stage the liver was enlarged. This observation suggested that the primary disease process arose from the abdominal area, causing occlusion of the inferior vena cava, extending cranial ...
... stage of the illness, the liver was not enlarged. A few months after delivery her complaints reappeared, but at this stage the liver was enlarged. This observation suggested that the primary disease process arose from the abdominal area, causing occlusion of the inferior vena cava, extending cranial ...
Tamponade and Pericardial Diseases
... function in that it contributes to maintaining accumulated blood in a liquid state1-2,4. Much of the microphysiologic function of the pericardium is not completely understood. Normally during spontaneous respiration, changes in intrathoracic pressures are nearly equally transmitted to the pericardia ...
... function in that it contributes to maintaining accumulated blood in a liquid state1-2,4. Much of the microphysiologic function of the pericardium is not completely understood. Normally during spontaneous respiration, changes in intrathoracic pressures are nearly equally transmitted to the pericardia ...
Reciprocal of Wall Thickness
... The slope of the end-systolic pressure-volume relation (ESPVR) is useful in assessing acute changes in contractile state. However, a limitation of ESPVR is that its slope decreases progressively as ventricular size increases without this change necessarily indicating a change in contractile state. I ...
... The slope of the end-systolic pressure-volume relation (ESPVR) is useful in assessing acute changes in contractile state. However, a limitation of ESPVR is that its slope decreases progressively as ventricular size increases without this change necessarily indicating a change in contractile state. I ...
Experimental aspectsof cobalt cardiomyopathy - Heart
... 10-35 per cent of rats receiving the lowprotein diet and treated with cobalt. The mitral valve was affected predominantly (Fig. 5), but vegetations also occurred occasionally on the aortic and tricuspid valves and on the parietal endocardium. A non-necrotizing granulomatous inflammatory process deve ...
... 10-35 per cent of rats receiving the lowprotein diet and treated with cobalt. The mitral valve was affected predominantly (Fig. 5), but vegetations also occurred occasionally on the aortic and tricuspid valves and on the parietal endocardium. A non-necrotizing granulomatous inflammatory process deve ...
Name of presentation
... Potassium supplementation is often necessary Untreated hypokalemia can predispose to arrhythmia, especially if on digitalis ...
... Potassium supplementation is often necessary Untreated hypokalemia can predispose to arrhythmia, especially if on digitalis ...
Rare Case of Left Upper Lobe Partial Anomalous
... improved technique (5). However, hard data is, again, not available. Imaging modalities beyond echocardiography are used to assess the cardiopulmonary system. CT allows for accurate characterization of cardiopulmonary anatomy including pulmonary venous drainage, as demonstrated in this case. Coronal ...
... improved technique (5). However, hard data is, again, not available. Imaging modalities beyond echocardiography are used to assess the cardiopulmonary system. CT allows for accurate characterization of cardiopulmonary anatomy including pulmonary venous drainage, as demonstrated in this case. Coronal ...
Kavasmaa, Mervi Haapsamo, Luc Mertens and James
... Petersburg, FL 33701 (e-mail: [email protected]). H498 ...
... Petersburg, FL 33701 (e-mail: [email protected]). H498 ...
Pulmonary circulation
... blood is pushed into pulmonary artery 4. Left ventricle contacts bicuspid valve closes aortic semilunar valve opens blood is pushed into aorta © 2014 by McGraw-Hill Education. This is proprietary material solely for authorized instructor use. Not authorized for sale or distribution in any mann ...
... blood is pushed into pulmonary artery 4. Left ventricle contacts bicuspid valve closes aortic semilunar valve opens blood is pushed into aorta © 2014 by McGraw-Hill Education. This is proprietary material solely for authorized instructor use. Not authorized for sale or distribution in any mann ...
Coronary artery-left ventricular microfistulae associated with apical
... hypertrophy is located at the apex and in the non-Japanese form hypertrophy extends under the level of chordae tendinea. The characteristic ECG finding is giant negative T waves at anterior precordial derivations. The reports about the coexistence of multiple coronary artery to left ventricle microf ...
... hypertrophy is located at the apex and in the non-Japanese form hypertrophy extends under the level of chordae tendinea. The characteristic ECG finding is giant negative T waves at anterior precordial derivations. The reports about the coexistence of multiple coronary artery to left ventricle microf ...
Pericardial Disease
... and it may also limit acute cavity dilation. Although these effects may be modest in normal individuals, in states of pericardial pathology they can have a profound impact on the heart’s hemodynamic performance. Of particular import is that the relative stiffness of the parietal pericardium causes t ...
... and it may also limit acute cavity dilation. Although these effects may be modest in normal individuals, in states of pericardial pathology they can have a profound impact on the heart’s hemodynamic performance. Of particular import is that the relative stiffness of the parietal pericardium causes t ...
Pericardial Disease - Society of Cardiovascular Anesthesiologists
... nanism, an autosomal recessive disorder, primarily found in the Finnish population that can lead to congestive heart failure in early adult life and is partially characterized by the development of constrictive pericarditis in some affected individuals. TEE findings of constrictive pericarditis will ...
... nanism, an autosomal recessive disorder, primarily found in the Finnish population that can lead to congestive heart failure in early adult life and is partially characterized by the development of constrictive pericarditis in some affected individuals. TEE findings of constrictive pericarditis will ...
the postmortem rigor of the mammalian heart and the influence of an
... was carried out by J. Rothberger,' 1903. He examined the hearts of two hundred dogs which were killed in various ways or which had died from various causes. The hearts were removed from the body, the blood content washed out by a physiological salt solution and cannulas tied in the vena cava, left a ...
... was carried out by J. Rothberger,' 1903. He examined the hearts of two hundred dogs which were killed in various ways or which had died from various causes. The hearts were removed from the body, the blood content washed out by a physiological salt solution and cannulas tied in the vena cava, left a ...
Anterior and posterior left ventricular sarcomere lengths behave
... the heart was situated with its long axis approximately horizontal and oriented such that the anterior site faced upward and the posterior site was located at approximately four o’clock. If we were to rotate the left ventricle around its long axis, we would then have altered the differential offset ...
... the heart was situated with its long axis approximately horizontal and oriented such that the anterior site faced upward and the posterior site was located at approximately four o’clock. If we were to rotate the left ventricle around its long axis, we would then have altered the differential offset ...
Mitral insufficiency
Mitral insufficiency (MI), mitral regurgitation or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood. It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.