Results 51 to 60 of about 105,951 (282)

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

Advanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies, Emanuele Nicotra, Kefan Zhu, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Phuoc Thien Phan, Jingjing Wan, Patrick Pruscino, Hermione Truong, Jelena Rnjak‐Kovacina, Hoang‐Phuong Phan, Christopher Hayward, Nigel Hamilton Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

Contrast doppler echocardiography

Archives of Acoustics, 2015
A new technique in the scope of cardiac ultrasound — "contrast Doppler echocardiography" — is introduced and its first clinical applications are presented.
P. NIEDERLE, P. FRÍDL, E. KOUDELKOVÁ, P. JEBAVÝ, M. HACO   +4 more
doaj  

Isovolumic relaxation strain imaging is an accurate and sensitive approach for detection of active diastolic dysfunction: A preclinical study

Animal Models and Experimental Medicine, EarlyView.
A modified approach was developed to accurately identify the isovolumetric relaxation time (IVRT) using an apical three‐chamber view. Compared with conventional echocardiography, isovolumic relaxation strain imaging (IVSI) helps to detect the earlier alternations of diastolic function in transverse aortic constriction (TAC) mice.
Jingjing Liang, Juncheng Wang, Jun Cheng, Yanggan Wang   +3 more
wiley   +1 more source

A case of hypertrophic cardiomyopathy combined with muscular ventricular septal defect and abnormal origin of right coronary artery

BMC Cardiovascular Disorders, 2019
Background Hypertrophic cardiomyopathy (HCM) is a myocardial disease. However, the coexistence of HCM with muscular ventricular septal defect (VSD), especially those with both incomplete spontaneous closure and coronary abnormal origin, is relatively ...
Guang-mei Zheng, Jiao Bai, Jun-ming Tang, Fang-cheng Zhu, Hong-xia Jing   +4 more
doaj   +1 more source

Techniques for Identification of Left Ventricular Asynchrony for Cardiac Resynchronization Therapy in Heart Failure [PDF]

, 2005
The most recent treatment option of medically refractory heart failure includes cardiac resynchronization therapy (CRT) by biventricular pacing in selected patients in NYHA functional class III or IV heart failure. The widely used marker to indicate left
Peter, Schuster, Svein, Faerestrand
core  

Biatrial Remodeling in Patients with Cystic Fibrosis [PDF]

, 2019
BACKGROUND: Previous studies have focused on left and right ventricular remodeling in cystic fibrosis (CF), whereas atrial function has not been assessed in detail so far.
Cuspidi, Cesare, Dordevic, Aleksandar, Düngen, Hans-Dirk, Genger, Martin, Pieske, Burkert, Schwarz, Carsten, Tadic, Marijana, Tahirovic, Elvis   +7 more
core   +1 more source

Doppler Echocardiography [PDF]

Circulation, 1973
A range-gated pulsed Doppler flowmeter has recently been developed that measures the average velocity of blood flow within a small tear-drop shaped (4 mm by 2 mm) sample volume. Unlike the continuous wave Doppler, the distance from the transducer face to the sampling site can be continuously varied by a range adjustment knob.
S L, Johnson, D W, Baker, R A, Lute, H T, Dodge   +3 more
openaire   +2 more sources

Age and gender effects on echocardiographic and histopathological cardiac phenotypes in healthy adult mice

Animal Models and Experimental Medicine, EarlyView.
This study investigated the impact of age and sex on cardiac phenotypes in healthy adult C57BL/6J mice using echocardiography and histopathological analyses. Findings revealed that female mice demonstrated more pronounced global cardiac chamber dilation during aging.
Shuang Wen, Xijia Shao, Xiulin Zhang, Ningning Zhang, Xiao Chen, Guangxin Yue, Jiangping Song   +6 more
wiley   +1 more source

Two-dimensional and Doppler echocardiographic findings of congenital coronary artery fistula

The Turkish Journal of Pediatrics, 1992
Three patients with coronary artery fistula confirmed by coronary angiography and surgery were studied using two-dimensional and Doppler echocardiography. Two of these patients had left coronary artery-right ventricle fistula.
S Ozkutlu, M Saraçlar, S Atalay, A Bilgiç, Y Yurdakul, S Ciçek   +5 more
doaj  

A Wireless, Wearable Carotid Doppler Ultrasound Aids Diagnosis and Monitoring of Pericardial Tamponade: A Case Report

Critical Care Explorations, 2023
BACKGROUND:. Pericardial tamponade can often be diagnosed through clinical findings and echocardiography; however, the diagnosis can be aided by demonstrating the hemodynamic consequences of the effusion. We describe the use of a wearable carotid Doppler
Ross Prager, MD, Michael Pratte, MD, Jon-Emile Kenny, MD, Philippe Rola, MD   +3 more
doaj   +1 more source