Results 31 to 40 of about 312,190 (321)
A comprehensive and biophysically detailed computational model of the whole human heart electromechanics [PDF]
, 2022 While ventricular electromechanics is extensively studied, four-chamber heart models have only been addressed recently; most of these works however neglect atrial contraction. Indeed, as atria are characterized by a complex physiology influenced by the ventricular function, developing computational models able to capture the physiological atrial ...
arxiv +1 more source
Ventricular pressures in phonating excised larynges [PDF]
The Journal of the Acoustical Society of America, 2012 Pressure in the laryngeal ventricle was measured with a beveled needle connected to a pressure transducer in excised canine larynges. Air pressures within the ventricle were obtained for different adduction levels of the true vocal folds (TVFs), false vocal folds (FVFs), and subglottal pressures (Ps).
Ronald C. Scherer, Fariborz Alipour
openaire +3 more sources
Pulmonary Circulation, 2021 Evaluation of left ventricular filling pressure plays an important role in the clinical management of pulmonary hypertension. However, the accuracy of echocardiographic parameters for the determination of left ventricular filling pressure in the presence
Yasuyuki Chiba +15 more
doaj +1 more source
Non-invasive in silico determination of ventricular wall pre-straining and characteristic cavity pressures [PDF]
arXiv, 2023 The clinical application of patient-specific modelling of the heart can provide valuable insights in supplementing and advancing methods of diagnosis as well as helping to devise the best possible therapeutic approach for each individual pathological heart condition.
arxiv
Impaired coronary blood flow at higher heart rates during atrial fibrillation: investigation via multiscale modelling [PDF]
Computer Methods and Programs in Biomedicine, 175: 95-102, 2019, 2019 Background. Different mechanisms have been proposed to relate atrial fibrillation (AF) and coronary flow impairment, even in absence of relevant coronary artery disease (CAD). However, the underlying hemodynamics remains unclear. Aim of the present work is to computationally explore whether and to what extent ventricular rate during AF affects the ...
arxiv +1 more source
Rate Control Management of Atrial Fibrillation: May a Mathematical Model Suggest an Ideal Heart Rate? [PDF]
PLoS ONE 10(3): e0119868, 2015, 2015 Background. Despite the routine prescription of rate control therapy for atrial fibrillation (AF), clinical evidence demonstrating a heart rate target is lacking. Aim of the present study was to run a mathematical model simulating AF episodes with a different heart rate (HR) to predict hemodynamic parameters for each situation. Methods.
arxiv +1 more source
AI-based Medical e-Diagnosis for Fast and Automatic Ventricular Volume Measurement in the Patients with Normal Pressure Hydrocephalus [PDF]
arXiv, 2022 Based on CT and MRI images acquired from normal pressure hydrocephalus (NPH) patients, using machine learning methods, we aim to establish a multi-modal and high-performance automatic ventricle segmentation method to achieve efficient and accurate automatic measurement of the ventricular volume.
arxiv
American Journal of Medical Genetics Part A, Volume 191, Issue 1, Page 228-233, January 2023., 2023 Abstract Pulmonary arterial hypertension (PAH) is a disease characterized by pathological remodeling of the pulmonary vasculature causing elevated pulmonary artery pressures and ultimately, right ventricular failure from chronic pressure overload. Heterozygous pathogenic GDF2 (encoding bone morphogenetic protein 9 (BMP9)) variants account for some (>1%)
Paul Upton +5 more
wiley +1 more source
American Journal of Medical Genetics Part A, Volume 191, Issue 2, Page 445-458, February 2023., 2023 Abstract Chromosome 1p36 deletion syndrome (1p36DS) is one of the most common terminal deletion syndromes (incidence between 1/5000 and 1/10,000 live births in the American population), due to a heterozygous deletion of part of the short arm of chromosome 1.
Clémence Jacquin +47 more
wiley +1 more source
Arquivos Brasileiros de Cardiologia, 2001 OBJECTIVE: To identiy left ventricular geometric patterns in hypertensive patients on echocardiography, and to correlate those patterns with casual blood pressure measurements and with the parameters obtained on a 24-hour ambulatory blood pressure ...
Delma Maria Cunha +6 more
doaj +1 more source