Results 41 to 50 of about 11,437,610 (385)

The effects of tissue plasminogen activator, streptokinase, or both on coronary-artery patency, ventricular function, and survival after acute myocardial infarction.

New England Journal of Medicine, 1993
BACKGROUND Although it is known that thrombolytic therapy improves survival after acute myocardial infarction, it has been debated whether the speed with which coronary-artery patency is restored after the initiation of therapy further affects outcome.
Gusto Angiographic Investigators
semanticscholar   +1 more source

Effects of cardiac motion on dose distribution during stereotactic arrhythmia radioablation treatment: A simulation and phantom study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi, Takeshi Kamomae, Fumitaka Kawabata, Kuniyasu Okudaira, Mariko Kawamura, Shunichi Ishihara, Shinji Naganawa   +6 more
wiley   +1 more source

Neural Deformable Models for 3D Bi-Ventricular Heart Shape Reconstruction and Modeling from 2D Sparse Cardiac Magnetic Resonance Imaging [PDF]

arXiv, 2023
We propose a novel neural deformable model (NDM) targeting at the reconstruction and modeling of 3D bi-ventricular shape of the heart from 2D sparse cardiac magnetic resonance (CMR) imaging data. We model the bi-ventricular shape using blended deformable superquadrics, which are parameterized by a set of geometric parameter functions and are capable ...
arxiv  

Right Ventricular Function in Cardiovascular Disease, Part I: Anatomy, Physiology, Aging, and Functional Assessment of the Right Ventricle

Circulation, 2008
In 1616, Sir William Harvey was the first to describe the importance of right ventricular (RV) function in his seminal treatise, De Motu Cordis : “Thus the right ventricle may be said to be made for the sake of transmitting blood through the lungs, not ...
F. Haddad, S. Hunt, D. Rosenthal, D. Murphy   +3 more
semanticscholar   +1 more source

Improving organ dose sparing in left‐sided breast cancer with yaw‐limited volumetric modulated arc therapy: A dosimetric comparison to conventional and intensity modulated radiation therapy approaches

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background To assess the dose‐sparing capabilities of a yaw‐limited volumetric modulated arc therapy (YL_VMAT) beam setup for adjacent organs at risk (OAR) in comparison with 3D‐conventional radiation therapy (3D‐CRT), intensity‐modulated radiation therapy (IMRT) and conventional VMAT for radiation therapy in left‐sided breast cancer patients.
Gerhard Pollul, Sascha Grossmann, Heiko Karle, Tilman Bostel, Heinz Schmidberger   +4 more
wiley   +1 more source

Method to Annotate Arrhythmias by Deep Network [PDF]

, 2018
This study targets to automatically annotate on arrhythmia by deep network. The investigated types include sinus rhythm, asystole (Asys), supraventricular tachycardia (Tachy), ventricular flutter or fibrillation (VF/VFL), ventricular tachycardia (VT).
arxiv   +1 more source

Risk for ventricular fibrillation in peripartum cardiomyopathy with severely reduced left ventricular function—value of the wearable cardioverter/defibrillator

European Journal of Heart Failure, 2014
The true incidence of life‐threatening ventricular tachyarrhythmic events and the risk of sudden cardiac death in the early stage of peripartum cardiomyopathy (PPCM) are still unknown.
D. Duncker, A. Haghikia, T. Koenig, S. Hohmann, K. Gutleben, R. Westenfeld, H. Oswald, H. Klein, J. Bauersachs, D. Hilfiker-Kleiner, C. Veltmann   +10 more
semanticscholar   +1 more source

The tricuspid valve in hypoplastic left heart syndrome: Echocardiography provides insight into anatomy and function

Frontiers in Pediatrics, 2023
Tricuspid regurgitation (TR) is commonly seen in surgically palliated patients with hypoplastic left heart syndrome, and when significant, is associated with an increase in both morbidity and mortality.
Tara Bharucha, Nicola Viola
doaj   +1 more source

Preservation of ventricular function by treatment of ventricular fibrillation with phenylephrine

Journal of the American College of Cardiology, 1990
Epinephrine promotes resuscitation from ventricular fibrillation because of its peripheral vasoconstrictive effects. However, the beta-adrenergic effects of epinephrine may be detrimental because of the stimulation of myocardial oxygen demand. To test whether functional recovery from fibrillation in hearts treated with a selective alpha-adrenergic ...
Mark Midei, Myron L. Weisfeldt, Kiichi Sagawa, Alan D. Guerci, W. Lowell Maughan, Seiryo Sugiura   +5 more
openaire   +3 more sources

Magnetic Resonance Imaging for Identifying Patients With Cardiac Sarcoidosis and Preserved or Mildly Reduced Left Ventricular Function at Risk of Ventricular Arrhythmias

Circulation: Arrhythmia and Electrophysiology, 2014
Background—The purpose of this study was to assess whether delayed enhancement (DE) on MRI is associated with ventricular tachycardia (VT)/ventricular fibrillation or death in patients with cardiac sarcoidosis and left ventricular ejection fraction >35%.
Thomas C. Crawford, G. Mueller, Sinan Sarsam, H. Prasitdumrong, Naiyanet Chaiyen, Xiaokui Gu, Joseph L. Schuller, J. Kron, K. Nour, A. Cheng, Sang Yong Ji, Shawn D. Feinstein, Sanjaya K. Gupta, Karl J. Ilg, M. Sinno, Saddam Abu-Hashish, M. Al-Mallah, W. Sauer, K. Ellenbogen, F. Morady, F. Bogun   +20 more
semanticscholar   +1 more source