Results 71 to 80 of about 54,609 (316)

Comparative diagnostic accuracy study of point of care ultrasound techniques for detection of left atrial enlargement by hospital medicine physicians from archived echocardiogram images

Journal of Hospital Medicine, EarlyView.
Abstract Background Left atrial enlargement (LAE) is predictive of cardiovascular morbidity and mortality. Prior studies of point‐of‐care ultrasound (POCUS) interpretation methods for identifying LAE utilized older echocardiographic reference ranges. Objectives Compare the test characteristics of hospitalist‐performed POCUS techniques for identifying ...
Christopher J. Smith, Jesse Umbra, Sofia Quintero, Austin Wilson, Elizabeth Lyden, Nidish Tiwari, Brian Shahan, Jana Wardian   +7 more
wiley   +1 more source

Quantitative Confounder Analysis of Electrocardiogram Signals in Cardiac Magnetic Resonance at 1.5, 3 and 7 T—Assessing Standardized Electrode Positions and Sequence Types—Towards Quality Assurance

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The electrocardiogram (ECG) used for gating in cardiac MRI may be compromised by multiple confounders inside the scanner bore. Purpose To quantify the influence of magnetic field strengths (1.5 T/3 T/7 T), standardized electrode positions, and imaging sequences on ECG signals used for gating. Study Type Prospective.
Richard Hickstein, Stephanie Wiesemann, Darian Viezzer, Denise Kleindienst, Teodora Chitiboi, Bogdan Andrei Gheorghita, Jens Wetzl, Thomas Hadler, Sebastian Dietrich, Sebastian Schmitter, Jeanette Schulz‐Menger   +10 more
wiley   +1 more source

The effect of cardiac phase on distractor suppression and motor inhibition in a stop-signal task

Scientific Reports
Past work has shown that stimuli timed to the cardiac systole, the time at which heartbeat feedback is transmitted to the brain, can be more effectively selected from conflicting information.
Amanda C. Marshall, Qiaoyue Ren, Lioba Enk, Junhui Liu, Simone Schütz-Bosbach   +4 more
doaj   +1 more source

Quantitative MRI Values for Atrial and Ventricular Parameters in Altitude‐Dwelling Youth

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The hypoxic environment on the Qinghai Plateau significantly exacerbates myocardial remodeling, with sex/ethnicity‐specific variations in cardiac parameters among local youth. Current cardiac MRI reference values lack data from physiologically adapted populations on this plateau.
Xiumei Xiao, Hui Xu
wiley   +1 more source

Alcohol Septal Ablation in Hypertrophic Obstructive Cardiomyopathy: Long‐Term Follow‐Up of Deformations and Hemodynamics

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background A detailed evaluation of hemodynamics, supportive morphology, and deformation may help uncover the pathophysiology of hypertrophic obstructive cardiomyopathy (HOCM) and the changes wrought by alcohol septal ablation (ASA). Purpose To investigate the global cardiac volume, myocardial deformation, and hemodynamic characteristics ...
Kenichiro Suwa, Kazuto Ohno, Terumori Satoh, Ryota Sato, Keisuke Iguchi, Yuichiro Maekawa   +5 more
wiley   +1 more source

Fully Automated Plane Prescription in Cardiac MRI: A Prospective Cohort Study

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Accurate plane positioning is important for high‐quality cardiac MRI images but requires specialized training, limiting accessibility. Purpose To evaluate an automated plane positioning tool and compare it with manual planning. Study Type Prospective.
Benjamin Böttcher, Felix G. Meinel, Karolin K. Deyerberg, Lena‐Maria Watzke, Mathias Manzke, Margarita Gorodezky, Gaspar Delso, Antonia Dalmer, Anne Nerger, Marc‐André Weber, Ann‐Christin Klemenz   +10 more
wiley   +1 more source

Motion Mitigation Techniques for Abdominal and Cardiac MR Imaging

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT MRI of the heart and abdominal organs provides unparalleled soft tissue contrast and quantitative biomarkers, yet remains highly susceptible to physiological motion. Contractions of the myocardium, respiratory excursions, peristalsis, vascular pulsatility, and unpredictable bulk patient movement generate artifacts that impair image quality ...
Eric M. Schrauben, Gastao Lima da Cruz, Christopher W. Roy, Thomas Küstner   +3 more
wiley   +1 more source

The mechanism of mitral regurgitant jets identified by 3-dimensional transesophageal echocardiography

Open Medicine, 2018
This study is a case report, which presents a case of severe mitral regurgitation in a 77-year-old man. Two-dimensional transesophageal echocardiography (TEE), regurgitant jets directed anteriorly in early systole and centrally to laterally in late ...
Iida Ryoji, Aono Mayu, Choy Jonathan
doaj   +1 more source

Delineation and Analysis of Seismocardiographic Systole and Diastole Profiles [PDF]

, 2020
Tilendra Choudhary, M. K. Bhuyan, L. N. Sharma   +2 more
openalex   +1 more source

MiR‐145‐5p Attenuates Doxorubicin‐Induced Heart Injury Through Targeting Cardiomyocyte Pyroptosis

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Doxorubicin (DOX), a potent anthracycline chemotherapeutic, exhibits dose‐dependent cardiotoxicity that limits its clinical utility. Although miR‐145‐5p demonstrates cardioprotective properties in cardiovascular diseases, its role in DOX‐induced cardiomyopathy remains undefined.
Xing‐Tao Chen, Yong‐Hong Yu, Yan‐Hua Du, Lin Xu, Xiang‐Ping Meng   +4 more
wiley   +1 more source