ASE/SCA Guidelines for Performing a Comprehensive
... great vessels (Table 1 and Figure 3). The nomenclature is as consistent as possible with previous recommendations of the ASE Committee on Nomenclature and Standards 38 and commonly accepted terminology for transthoracic echocardiography (TTE).39 The views are designated by the transducer location (i ...
... great vessels (Table 1 and Figure 3). The nomenclature is as consistent as possible with previous recommendations of the ASE Committee on Nomenclature and Standards 38 and commonly accepted terminology for transthoracic echocardiography (TTE).39 The views are designated by the transducer location (i ...
Copyright Information of the Article Published Online TITLE
... http://dx.doi.org/10.4330/wjc.v8.i2.231 This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons ...
... http://dx.doi.org/10.4330/wjc.v8.i2.231 This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons ...
Three-Dimensional Transesophageal Echocardiography Is a Major
... performed using a single echocardiographic window; the ultrasound probe (TTE or multiplane TEE) is held immobile while the ultrasound scanning plane rotates on its main axis to scan a conical-shaped volume at fixed angle increments (Fig. 2B). For all 2D scanning techniques described above, the acqui ...
... performed using a single echocardiographic window; the ultrasound probe (TTE or multiplane TEE) is held immobile while the ultrasound scanning plane rotates on its main axis to scan a conical-shaped volume at fixed angle increments (Fig. 2B). For all 2D scanning techniques described above, the acqui ...
Image-based large-eddy simulation in a realistic left heart
... the blood flow spatial and temporal distribution in the heart may provide information on cardiac abnormalities. However, in clinical routine, hemodynamics is mostly observed indirectly through global variables as the cardiac output in order to assess the cardiac performance. Indeed, a synthetic descr ...
... the blood flow spatial and temporal distribution in the heart may provide information on cardiac abnormalities. However, in clinical routine, hemodynamics is mostly observed indirectly through global variables as the cardiac output in order to assess the cardiac performance. Indeed, a synthetic descr ...
Color Doppler Evaluation of Valvular Regurgitation in
... In their study, however, the Doppler aortic regurgitant flow signal was always in early diastole. It had no clearly distinguishable audio signal, had very low velocities, and could only be recorded adjacent to the valve. The flow pattern that they have reported was clearly different from that of wel ...
... In their study, however, the Doppler aortic regurgitant flow signal was always in early diastole. It had no clearly distinguishable audio signal, had very low velocities, and could only be recorded adjacent to the valve. The flow pattern that they have reported was clearly different from that of wel ...
(1-7)对腹主动脉缩窄大鼠心肌肥厚和纤维化的影响
... induced a significant increase in carotid artery systolic and diastolic blood pressure, heart weight, LVMI, ICVF, and the concentration of Ang II in the myocardium (P<0.01). Chronic administration of Ang-(1-7) attenuated the increase in the heart weight, LVMI, ICVF and left ventricular diastolic end ...
... induced a significant increase in carotid artery systolic and diastolic blood pressure, heart weight, LVMI, ICVF, and the concentration of Ang II in the myocardium (P<0.01). Chronic administration of Ang-(1-7) attenuated the increase in the heart weight, LVMI, ICVF and left ventricular diastolic end ...
pericardial effusions by echocardiography - Heart
... This 68-year-old man presented with a pericardial the space occupied by the effusion between the left effusion one year after mediastinal irradiation for ventricular posterior wall and the parietal peribronchogenic carcinoma. In the first four beats cardium is of uniform width at all levels of the l ...
... This 68-year-old man presented with a pericardial the space occupied by the effusion between the left effusion one year after mediastinal irradiation for ventricular posterior wall and the parietal peribronchogenic carcinoma. In the first four beats cardium is of uniform width at all levels of the l ...
Mitral Valve Repair
... cause of mitral insufficiency in North America, accountable for more than 50% of cases in recent surgical series. The most commonly encountered lesion in degenerative mitral valve disease is posterior chordal rupture; other lesions include anterior chordal rupture, chordal elongation, annular dilata ...
... cause of mitral insufficiency in North America, accountable for more than 50% of cases in recent surgical series. The most commonly encountered lesion in degenerative mitral valve disease is posterior chordal rupture; other lesions include anterior chordal rupture, chordal elongation, annular dilata ...
Recommendations for chamber quantification
... there is a systemic tendency for higher measurements of LV wall thickness and mass and smaller measurements of internal dimensions and volumes.3,4 When analyzing serial studies on a given patient, differences in chamber dimension potentially attributable to imaging changes from the fundamental to th ...
... there is a systemic tendency for higher measurements of LV wall thickness and mass and smaller measurements of internal dimensions and volumes.3,4 When analyzing serial studies on a given patient, differences in chamber dimension potentially attributable to imaging changes from the fundamental to th ...
Prevalence and Distribution of the Third Coronary Artery in
... Ludinghausen & Ohmachi; Zafrir et al.). This may contribute to collateral circulation to the IVS during LAD occlusions hence protecting the septum. The clinical implication of this is that diagnostic tests carried out for the LAD occlusions may fail to detect any ischaemic change in this region henc ...
... Ludinghausen & Ohmachi; Zafrir et al.). This may contribute to collateral circulation to the IVS during LAD occlusions hence protecting the septum. The clinical implication of this is that diagnostic tests carried out for the LAD occlusions may fail to detect any ischaemic change in this region henc ...
The Morphogenesis of Transposition of the Great Vessels
... day the idea that congenital anomalies were instanees of species-reversal (the ''throwvback ') was still popular in the lay miind, although biologists had discredited it. Today the ilotioi is in even less repute, and it is niot thought to play a significant role in teratology or mutation.8 Furthermo ...
... day the idea that congenital anomalies were instanees of species-reversal (the ''throwvback ') was still popular in the lay miind, although biologists had discredited it. Today the ilotioi is in even less repute, and it is niot thought to play a significant role in teratology or mutation.8 Furthermo ...
Nonsurgical Closure of Oversized Patent Ductus
... is between three and four years.3 7Closure of PDA in newborns and infants in whom cardiac failure is present is not practical with the transfemoral approach. Basically, the success of the transfemoral technique depends on the ratio of the lumen of the femoral artery to that of the PDA which is to be ...
... is between three and four years.3 7Closure of PDA in newborns and infants in whom cardiac failure is present is not practical with the transfemoral approach. Basically, the success of the transfemoral technique depends on the ratio of the lumen of the femoral artery to that of the PDA which is to be ...
Cardiac - JRC-DMS
... Copyright © 2016 Joint Review Committee on Education in Diagnostic Medical Sonography (JRC-DMS). All rights reserved. Return to Table of Contents» ...
... Copyright © 2016 Joint Review Committee on Education in Diagnostic Medical Sonography (JRC-DMS). All rights reserved. Return to Table of Contents» ...
Innocent Heart Murmurs
... through the hole in the atrial septum called the ostium secundum. This means that the most oxygenated blood in the fetus is now in the left atrium where it goes through the mitral valve to the left ventricle, then to the aorta, and up to the fetus’ developing brain. The brain extracts oxygen from th ...
... through the hole in the atrial septum called the ostium secundum. This means that the most oxygenated blood in the fetus is now in the left atrium where it goes through the mitral valve to the left ventricle, then to the aorta, and up to the fetus’ developing brain. The brain extracts oxygen from th ...
Progression of mitral regurgitation
... The progression of MR was associated with more severe consequences of MR, particularly an increase in LV enddiastolic volume index (p ⬍ 0.004) and left atrial volume and a decrease in cardiac index (Table 1). The increase in systolic pulmonary artery pressure and end-systolic volume index (p ⫽ 0.31) ...
... The progression of MR was associated with more severe consequences of MR, particularly an increase in LV enddiastolic volume index (p ⬍ 0.004) and left atrial volume and a decrease in cardiac index (Table 1). The increase in systolic pulmonary artery pressure and end-systolic volume index (p ⫽ 0.31) ...
Successful catheter ablation of symptomatic premature ventricular
... Case Report A 36-year-old, male helicopter pilot was taken to hypobaric chamber training. His electrocardiography, chest X-Ray and biochemical parameters revealed to be completely normal. He had no history of syncope or presyncope. He was exposed to hypobaric environment for about one hour including ...
... Case Report A 36-year-old, male helicopter pilot was taken to hypobaric chamber training. His electrocardiography, chest X-Ray and biochemical parameters revealed to be completely normal. He had no history of syncope or presyncope. He was exposed to hypobaric environment for about one hour including ...
The uses and limitations of end-systolic indexes of left
... better reflection of the slope of the afterload-volume relationship than is the end-systolic pressure-end systolic volume relationship. The stress-volume relationship has also been used successfully in the assessment of left ventricular contractile function. In our laboratory, for example, noninvasi ...
... better reflection of the slope of the afterload-volume relationship than is the end-systolic pressure-end systolic volume relationship. The stress-volume relationship has also been used successfully in the assessment of left ventricular contractile function. In our laboratory, for example, noninvasi ...
3D anatomical modelling of the human cardiac conduction system
... successfully created. The sinus node is a crescent shaped structure 1.6 cm in length. The paranodal area is ellipsoid in shape and 2 cm in length. The two structures are in close proximity but there were no connections found between them. 2) A 3D anatomical reconstruction of the human heart and majo ...
... successfully created. The sinus node is a crescent shaped structure 1.6 cm in length. The paranodal area is ellipsoid in shape and 2 cm in length. The two structures are in close proximity but there were no connections found between them. 2) A 3D anatomical reconstruction of the human heart and majo ...
Kheradvar_4631_r2_Layout 1
... number of leaflets and saddle shape of the its annulus make it distinct from the other three valves inside the heart. Currently, there is no firm evidence why a bileaflet structure having developed in the mitral position compared to trileaflet structures in other heart valves. One hypothesis is base ...
... number of leaflets and saddle shape of the its annulus make it distinct from the other three valves inside the heart. Currently, there is no firm evidence why a bileaflet structure having developed in the mitral position compared to trileaflet structures in other heart valves. One hypothesis is base ...
Fetal Echocardiography: an intense review course August 16
... echocardiography including: physicians, sonographers, nurse practitioners, physician assistants, nurses and other medical professionals. This program is designed to be a thorough review of fetal echocardiography that covers the indications, views, technique, anomalies and differential diagnosis. Thi ...
... echocardiography including: physicians, sonographers, nurse practitioners, physician assistants, nurses and other medical professionals. This program is designed to be a thorough review of fetal echocardiography that covers the indications, views, technique, anomalies and differential diagnosis. Thi ...
Twist Mechanics of the Left Ventricle
... Figure 1 shows the temporal sequence of LV twist. During isovolumic contraction, the LV apex shows brief clockwise rotation that reverses rapidly and becomes counterclockwise during LV ejection (18,19). The magnitude of peak rotation varies depending on the position of the cross-section viewed from ...
... Figure 1 shows the temporal sequence of LV twist. During isovolumic contraction, the LV apex shows brief clockwise rotation that reverses rapidly and becomes counterclockwise during LV ejection (18,19). The magnitude of peak rotation varies depending on the position of the cross-section viewed from ...
First-in-Human Transcatheter Tricuspid€Valve Repair in a
... retrograde approach allows for better control and accuracy of placement of the wires into the annulus while TEE guidance is used. An 8-F deflectable catheter was advanced across the tricuspid valve and positioned into the right ventricle by means of echocardiographic guidance. Once introduced into th ...
... retrograde approach allows for better control and accuracy of placement of the wires into the annulus while TEE guidance is used. An 8-F deflectable catheter was advanced across the tricuspid valve and positioned into the right ventricle by means of echocardiographic guidance. Once introduced into th ...
Straddling tricuspid valve - Heart
... with ventricular inversion. In these, the right atrioventricular valve was considered to be the morphoDouble inlet inverted left ventricle (group 2) logical mitral valve and the left, the tricuspid. In one Six specimens were characterized by the presence of these cases, the right-sided mitral valve ...
... with ventricular inversion. In these, the right atrioventricular valve was considered to be the morphoDouble inlet inverted left ventricle (group 2) logical mitral valve and the left, the tricuspid. In one Six specimens were characterized by the presence of these cases, the right-sided mitral valve ...
Aortic stenosis
Aortic stenosis (AS) is the narrowing of the exit of the left ventricle of the heart such that problems result. It may occur at the aortic valve as well as above and below this level. It typically gets worse over time. Symptoms often come on gradually with a decreased ability to exercise often occurring first. If heart failure, loss of consciousness, or heart related chest pain occurs due to AS the outcomes are worse. Loss of consciousness typically occurs with standing or exercise. Signs of heart failure include shortness of breath especially with lying down, at night, and with exercise as well as swelling of the legs. Thickening of the valve without narrowing is known as aortic sclerosis.Causes include being born with a bicuspid aortic valve and rheumatic fever. A bicuspid aortic valve affects about one to two percent of the population while rheumatic heart disease mostly occurring in the developing world. A normal valve, however, may also harden over the decades. Risk factors are similar to those of coronary artery disease and include smoking, high blood pressure, high cholesterol, diabetes, and being male. The aortic valve usually has three leaflets and is located between the left ventricle of the heart and the aorta. AS typically results in a heart murmur. Its severity can be divided into mild, moderate, severe, and very severe based on ultrasound of the heart findings.Aortic stenosis is typically followed using repeated ultrasounds. Once it has become severe treatment primarily involves valve replacement surgery with transcatheter aortic valve replacement (TAVR) being an option in some who are at high risk from surgery. Valves may either be mechanical or bioprosthetic with each having risks and benefits. Another less invasive procedure, balloon aortic valvuloplasty (BAV) may result in benefit but this is for only for a few months. Complications like heart failure may be treated as per normal in those with mild to moderate AS. In those with severe disease a number of medications should be avoided including ACE inhibitors, nitroglycerin, and some beta blockers. Nitroprusside or phenylephrine may be used in those with decompensated heart failure depending on the blood pressure.Aortic stenosis is the most common valvular heart disease in the developed world. It affects about 2% of people who are over 65 years of age. Estimated rates are not known in most of the developing world as of 2014. In those who have symptoms, without repair, the chance of death at five years is about 50% and at 10 years is about 90%. Aortic stenosis was first described by French physician Lazare Rivière in 1663.