S. Yokoyama

发表

Prognostic value of an echocardiographic index reflecting right ventricular operating stiffness in patients with heart failure

T. Anzai, K. Okada, S. Kaga, 2021, Heart and Vessels.

Simple and noninvasive method to estimate right ventricular operating stiffness based on echocardiographic pulmonary regurgitant velocity and tricuspid annular plane movement measurements during atrial contraction

T. Anzai, K. Okada, S. Kaga, 2019, The International Journal of Cardiovascular Imaging.

Quantitative and pattern analyses of continuous-wave Doppler-derived pulmonary regurgitant flow velocity for the diagnosis of constrictive pericarditis.

H. Tsutsui, K. Okada, S. Kaga, 2014, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

Functional significance of intra‐left ventricular vortices on energy efficiency in normal, dilated, and hypertrophied hearts

T. Anzai, K. Okada, S. Kaga, 2020, Journal of clinical ultrasound : JCU.

Angiotensin II receptor blocker, valsartan, increases myocardial blood volume and regresses hypertrophy in hypertensive patients.

H. Tsutsui, S. Kaga, T. Mikami, 2009, Circulation journal : official journal of the Japanese Circulation Society.

Heart Failure With Preserved Ejection Fraction vs. Reduced Ejection Fraction

T. Anzai, K. Okada, S. Kaga, 2020 .

Heart Failure With Preserved Ejection Fraction vs. Reduced Ejection Fraction　― Mechanisms of Ventilatory Inefficiency During Exercise in Heart Failure ―

T. Anzai, K. Okada, S. Kaga, 2020, Circulation Reports.

Diastolic Intra-Left Ventricular Pressure Difference During Exercise: Strong Determinant and Predictor of Exercise Capacity in Patients With Heart Failure.

P. Vlachos, T. Anzai, K. Okada, 2019, Journal of cardiac failure.

Application of the proximal isovelocity surface area method for estimation of the effective orifice area in aortic stenosis

T. Anzai, K. Okada, S. Kaga, 2021, Heart and Vessels.

Usefulness of the pulmonary venous flow waveform for assessing left atrial stiffness

T. Nagai, T. Anzai, K. Okada, 2022, The International Journal of Cardiovascular Imaging.

Difference in left atrial myocardial dynamics during reservoir phase between hypertrophic cardiomyopathy and hypertensive heart determined using three-dimensional speckle tracking echocardiography

T. Anzai, K. Okada, S. Kaga, 2022, The International Journal of Cardiovascular Imaging.

Visual echocardiographic scoring system of the left ventricular filling pressure and outcomes of heart failure with preserved ejection fraction

M. Obokata, M. Kurabayashi, T. Nagai, 2021, European heart journal. Cardiovascular Imaging.

OP-EJEC210210 1..11

M. Obokata, M. Kurabayashi, T. Nagai, 2021 .

Tricuspid regurgitation occurring in the early‐diastolic phase in a case of heart failure: Insights from echocardiographic and invasive hemodynamic findings

T. Anzai, K. Okada, S. Kaga, 2019, Echocardiography.

Early diastolic mitral annular velocity at the interventricular septal annulus correctly reflects left ventricular longitudinal myocardial relaxation.

H. Tsutsui, K. Okada, S. Kaga, 2011, European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology.

Relationships of left ventricular strain and strain rate to wall stress and their afterload dependency

H. Tsutsui, K. Okada, S. Kaga, 2017, Heart and Vessels.

Determinants of exercise capacity in patients with heart failure without left ventricular hypertrophy.

Brett A. Meyers, P. Vlachos, T. Nagai, 2022, Journal of cardiology.

Long-term echocardiographic evaluation of valvular lesions in a patient with nonbacterial thrombotic endocarditis associated with advanced uterine cancer.

H. Tsutsui, K. Okada, S. Kaga, 2016, Journal of cardiology cases.

Associations of right ventricular pulsatile load and cardiac power output to clinical outcomes in heart failure: Difference from systemic circulation.

T. Nagai, T. Anzai, S. Kaga, 2022, Journal of cardiology.

Usefulness of the pulmonary venous flow waveform for assessing left atrial stiffness

T. Nagai, T. Anzai, K. Okada, 2022, The International Journal of Cardiovascular Imaging.

Difference in left atrial myocardial dynamics during reservoir phase between hypertrophic cardiomyopathy and hypertensive heart determined using three-dimensional speckle tracking echocardiography

T. Anzai, K. Okada, S. Kaga, 2022, The International Journal of Cardiovascular Imaging.

Significance and prognostic impact of v wave on pulmonary artery pressure in patients with heart failure: beyond the wedge pressure

T. Nagai, T. Anzai, K. Okada, 2020, Heart and Vessels.

Decreased aorto‐septal angle may contribute to left ventricular diastolic dysfunction in healthy subjects

H. Tsutsui, K. Okada, S. Kaga, 2014, Journal of clinical ultrasound : JCU.

Simple Two-Dimensional Echocardiographic Scoring System for the Estimation of Left Ventricular Filling Pressure.

T. Nagai, T. Anzai, K. Okada, 2021, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

Usefulness of the Continuous-Wave Doppler-Derived Pulmonary Arterial-Right Ventricular Pressure Gradient Just before Atrial Contraction for the Estimation of Pulmonary Arterial Diastolic and Wedge Pressures.

H. Tsutsui, K. Okada, S. Kaga, 2017, Ultrasound in medicine & biology.

Right ventricular diastolic dysfunction in patients with left ventricular hypertrophy: analysis of right ventricular myocardial relaxation using two-dimensional speckle tracking imaging

H. Tsutsui, S. Kaga, T. Mikami, 2009, Journal of echocardiography.

Overestimation by echocardiography of the peak systolic pressure gradient between the right ventricle and right atrium due to tricuspid regurgitation and the usefulness of the early diastolic transpulmonary valve pressure gradient for estimating pulmonary artery pressure

H. Tsutsui, K. Okada, S. Kaga, 2017, Heart and Vessels.

Characteristic systolic waveform of left ventricular longitudinal strain rate in patients with hypertrophic cardiomyopathy

H. Tsutsui, K. Okada, S. Kaga, 2017, Heart and Vessels.

Myocardial shortening in 3 orthogonal directions and its transmural variation in patients with nonobstructive hypertrophic cardiomyopathy.

H. Tsutsui, K. Okada, S. Kaga, 2015, Circulation journal : official journal of the Japanese Circulation Society.

Coexisting cardiac diseases and pressure recovery phenomenon contribute to discrepancy between the echocardiographic severity of aortic stenosis and left ventricular hypertrophy

H. Tsutsui, K. Okada, S. Kaga, 2013, Journal of Echocardiography.

Novel echocardiographic method to assess left ventricular chamber stiffness and elevated end-diastolic pressure based on time–velocity integral measurements of pulmonary venous and transmitral flows

K. Okada, S. Kaga, T. Mikami, 2018, European heart journal cardiovascular Imaging.

Novel strain rate index of contractility loss caused by mechanical dyssynchrony. - A predictor of response to cardiac resynchronization therapy-.

H. Yokoshiki, H. Tsutsui, Hirofumi Mitsuyama, 2011, Circulation journal : official journal of the Japanese Circulation Society.

Influence of advanced pulmonary vascular remodeling on accuracy of echocardiographic parameters of left ventricular filling pressure

T. Nagai, T. Anzai, K. Okada, 2020, Pulmonary circulation.

Strain rate dispersion index can predict changes in left ventricular volume and adverse cardiac events following cardiac resynchronization therapy.

H. Yokoshiki, H. Tsutsui, Hirofumi Mitsuyama, 2013, Circulation journal : official journal of the Japanese Circulation Society.

Paradoxical increase in global longitudinal strain by handgrip exercise despite left ventricular diastolic dysfunction

T. Anzai, S. Kaga, H. Iwano, 2023, Echocardiography.

Presence and relevance of mid-systolic notching on right ventricular outflow tract flow velocity envelopes in pulmonary hypertension due to heart failure.

T. Nagai, T. Anzai, K. Okada, 2020, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

Application of an echocardiographic scoring system of left ventricular filling pressure to diagnose acute heart failure in patients complaining dyspnea.

T. Nagai, T. Anzai, S. Kaga, 2023, Journal of cardiology.

Impact of right ventricular stiffness on discordance between hemodynamic parameter and regurgitant volume in patients with pulmonary regurgitation

T. Anzai, A. Takeda, S. Tsuneta, 2023, The International Journal of Cardiovascular Imaging.

Myocardial shortening in 3 orthogonal directions and its transmural variation in patients with nonobstructive hypertrophic cardiomyopathy.

H. Tsutsui, K. Okada, S. Kaga, 2015, Circulation journal : official journal of the Japanese Circulation Society.

Decreased aorto‐septal angle may contribute to left ventricular diastolic dysfunction in healthy subjects

H. Tsutsui, K. Okada, S. Kaga, 2014, Journal of Clinical Ultrasound.

Overweight causes left ventricular diastolic asynchrony and diastolic dysfunction: a study based on speckle tracking echocardiography in healthy subjects

H. Tsutsui, K. Okada, S. Kaga, 2012, Journal of Echocardiography.

Head-to-Head Comparison of Hepatic Vein and Superior Vena Cava Flow Velocity Waveform Analyses for Predicting Elevated Right Atrial Pressure.

T. Nagai, S. Kaga, H. Iwano, 2024, Ultrasound in medicine & biology.

Non‐invasive assessment of left ventricular filling pressure in aortic stenosis

T. Nagai, S. Kaga, H. Iwano, 2024, Echocardiography.

Deep learning to assess right ventricular ejection fraction from two‐dimensional echocardiograms in precapillary pulmonary hypertension

S. Tsuneta, S. Kaga, I. Tsujino, 2024, Echocardiography.

Echocardiographic estimation of right ventricular diastolic stiffness based on pulmonary regurgitant velocity waveform analysis in precapillary pulmonary hypertension.

S. Tsuneta, S. Kaga, H. Iwano, 2024, The international journal of cardiovascular imaging.

A new method to estimate pulmonary vascular resistance using diastolic pulmonary artery-right ventricular pressure gradients derived from continuous-wave Doppler velocity measurements of pulmonary regurgitation

H. Tsutsui, K. Okada, S. Kaga, 2016, The International Journal of Cardiovascular Imaging.