Results 121 to 130 of about 36,230 (266)

Non‐invasive assessment of integrated cardiorespiratory network dynamics after physiological stress in humans

The Journal of Physiology, EarlyView.
Abstract figure legend This study aimed to develop a non‐invasive method for visualizing the cardiorespiratory network under baseline conditions and following isolated or combined exposure to hypoxia, exercise, and sleep deprivation. Twenty‐two healthy participants underwent assessments at rest and after normobaric hypoxia (FIO2${{F}_{{\mathrm{I ...
Cecilia Morandotti, Louise Rigny, Thomas B. Williams, Juan I. Badariotti, Matt Miller‐Dicks, Amar S. Bhogal, Shachula Han, Jo Corbett, Michael J. Tipton, Joseph T. Costello, Ali R. Mani   +10 more
wiley   +1 more source

Separating the effect of respiration from the heart rate variability for cases of constant harmonic breathing

Current Directions in Biomedical Engineering, 2015
Heart Rate Variability studies are a known measure for the autonomous control of the heart rate. In special situations, its interpretation can be ambiguous, since the respiration has a major influence on the heart rate variability. For this reason it has
Kircher Michael, Lenis Gustavo, Dössel Olaf   +2 more
doaj   +1 more source

Dataset to reproduce firgures for the paper "A unifying method to study Respiratory Sinus Arrhythmia dynamics implemented in a new toolbox"

, 2023
Valentin Ghibaudo, Jules Granget, Matthias Dereli, Samuel Garcia, Nathalie Buonviso   +4 more
openalex   +2 more sources

Coronary Artery Blood Flow Imaging Using 3D Flow MRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1545-1559, March 2026.
ABSTRACT Purpose In this work, a 3D phase contrast (PC) technique is presented, which enables flow velocity measurements in three spatial directions, simultaneously covering the proximal left (LCA) and right (RCA) coronary arteries and yielding both morphological and flow information.
Denise Lichthardt, Michaela Schmidt, Jens Wetzl, Peter Speier, Manuel Hein, Christopher Schuppert, Armin M. Nagel, Daniel Giese   +7 more
wiley   +1 more source

Respiratory Sinus Arrhythmia Acts as a Moderator of the Relationship Between Parental Marital Conflict and Adolescents’ Internalizing Problems

Frontiers in Neuroscience, 2019
The present study examined the potential moderating role respiratory sinus arrhythmia (RSA) plays in the relationship between parental marital conflict and adolescents’ internalizing problems.
Sumaira Khurshid, Sumaira Khurshid, Yuan Peng, Yuan Peng, Zhenhong Wang, Zhenhong Wang   +5 more
doaj   +1 more source

Hypothesis: respiratory sinus arrhythmia is an intrinsic resting function of cardiopulmonary system [PDF]

, 2003
Junichiro Hayano, Fumihiko Yasuma
openalex   +1 more source

Prospective Respiratory Motion Correction Using Machine Learning and Pilot Tone (PROMPT) in Cardiac MRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1583-1595, March 2026.
ABSTRACT Purpose To implement and evaluate the feasibility of a Pilot Tone (PT)‐based prospective gating and tracking technique, which uses a long short‐term memory (LSTM) neural network to predict respiratory motion from PT signals. Methods A subject‐specific calibration scan consisting of 100 ECG‐triggered single‐shot images was performed ...
Yue Pan, Ning Jin, Kelvin Chow, Mario Bacher, Peter Speier, Vedat O. Yildiz, Matthew Tong, Yuchi Han, Rizwan Ahmad, Orlando P. Simonetti   +9 more
wiley   +1 more source

Reducing Respiratory Artifacts in Heart Rate Variability during Functional Food Intake Using ECG‐Derived Respiration

IEEJ Transactions on Electrical and Electronic Engineering, Volume 21, Issue 3, Page 413-420, March 2026.
Heart rate variability (HRV) has been analyzed to assess the effects of food on autonomic nervous activity, but HRV is reportedly influenced by respiration. Reducing respiratory artifacts in HRV analysis requires respiratory signals. In this study, we estimated respiratory signals from electrocardiogram (ECG), compared these signals with actual ...
Ryota Akai, Ayaka Yoshino, Kumiko Ohara, Harunobu Nakamura, Yoshimitsu Okita   +4 more
wiley   +1 more source

Vagal tone as an index of mental state [PDF]

The utility of monitoring oscillations in the heart rate pattern as a window to the brain is discussed as an index of general central nervous system status.
Porges, Stephen W.
core   +1 more source

Outcome and Toxicity Profile of Stereotactic Body Radiation Therapy for Adrenal Tumours in Dogs

Veterinary and Comparative Oncology, Volume 24, Issue 1, Page 150-159, March 2026.
ABSTRACT Stereotactic body radiation therapy (SBRT) has become a non‐invasive alternative option for canine adrenal tumours with high surgical risks; however, its clinical benefits and risks are still to be fully understood. The goal of this multi‐institutional retrospective study was to describe the clinical outcome and safety of SBRT for the ...
Lily Thorsen, Kimberley Law, Jillian Walz, Valerie Morales Coll, Ada Naramor, Charles Maitz, Lyndsay Kubicek, Zebulon Thorsen, Jishnu Rao Gutti, Marilia Takada   +9 more
wiley   +1 more source