Results 81 to 90 of about 737,277 (397)

Fabrication of a Stable, Low‐Cost, Patient‐Specific, Brain Phantom with Ventricles for Ultrasound Imaging

Advanced Engineering Materials, EarlyView.
Patient‐specific brain phantoms can replace animal trials, aid presurgical training, and enable in silico disease research on cerebrospinal fluid and ventricles. This study presents a method to create ventricular brain phantoms from three‐dimensional magnetic resonance images brain scans, resulting in durable, tunable, reproducible models that mimic ...
Kajal Chandraprakash Jain, Ana Belen Amado Rey, Ana Carolina Gonçalves Seabra, Thomas Stieglitz   +3 more
wiley   +1 more source

Endomysium in left ventricle [PDF]

Heart, 2001
This image shows the three dimensional arrangement of endomysial collagen fibres in the left ventricle free wall. The endomysium was studied by means of scanning electron microscopy after sodium hydroxide maceration in rabbit non-contracted heart. This method of maceration allowed the isolation of collagen fibres, …
MACCHIARELLI, GUIDO, Ohtani O.
openaire   +4 more sources

Automatic Segmentation and Disease Classification Using Cardiac Cine MR Images

, 2017
Segmentation of the heart in cardiac cine MR is clinically used to quantify cardiac function. We propose a fully automatic method for segmentation and disease classification using cardiac cine MR images.
Isgum, Ivana, Leiner, Tim, Viergever, Max A., Wolterink, Jelmer M.   +3 more
core   +2 more sources

A formal theory for spatial representation and reasoning in biomedical ontologies [PDF]

, 2006
Objective: The objective of this paper is to demonstrate how a formal spatial theory can be used as an important tool for disambiguating the spatial information embodied in biomedical ontologies and for enhancing their automatic reasoning capabilities ...
Bittner, Thomas, Donnelly, Maureen, Rosse, Cornelius   +2 more
core   +2 more sources

Soft Beats: A Dielectric Elastomer‐Based Ventricular Assist Device for Next‐Gen Heart Failure Management

Advanced Engineering Materials, EarlyView.
The dielectric elastomer‐based electropneumatic device (DE‐EPD) is a vacuum‐assisted ventricular assist device (VAD) that delivers high performance (85 mmHg, 6.8 L min−1) with low power consumption. Unlike traditional motor‐driven VADs, it is lightweight, quiet, energy‐efficient, and provides pulsatile flow. Validated in a simulated circulation system,
Amine Benouhiba, Armando Walter, Silje Ekroll Jahren, Francesco Clavica, Dominik Obrist, Yoan Civet, Yves Perriard   +6 more
wiley   +1 more source

Automatic segmentation of the left ventricle cavity and myocardium in MRI data [PDF]

, 2006
A novel approach for the automatic segmentation has been developed to extract the epi-cardium and endo-cardium boundaries of the left ventricle (lv) of the heart. The developed segmentation scheme takes multi-slice and multi-phase magnetic resonance (MR)
Azhari, Bland, Canny, Cerqueira, Chakraborty, Cootes, Delibasis, Duda, Gerard, Gerig, Hamarneh, Hartigan, Kass, Lelieveldt, Ligier, Ligier, Lynch, M. Lynch, Malladi, Malladi, McCann, McInerney, McInerney, Mitchell, Montagnat, Myerson, O. Ghita, Osher, P.F. Whelan, Perona, Rogers, Sanchez-Ortiz, Sanchez-Ortiz, Schalla, Sethian, Spreeuwers, Späth, Staib, Suri, Suri, Urschler, van der Geest, Waiter   +42 more
core   +1 more source

Precise Quantification of Angiogenesis in 3D Biomaterials Using in Vitro CAM Models: Enhancing 3Rs in Research and Minimizing in Vivo Dependency

Advanced Functional Materials, EarlyView.
The study develops elastin–fibrin scaffolds and evaluates angiogenesis using the chorioallantoic membrane (CAM) model. Advanced imaging with confocal microscopy and Indocyanine Green dye enables precise 3D quantification of vascular networks. Findings demonstrate superior microvessel visualization compared to micro‐CT using Microfil and Optiray 350 ...
Ece Melis Er, Martha Patricia Pérez González, Beatriz Gil Garrido, Jasmine Ho, Hae‐Won Kim, Jonathan Campbell Knowles, Jia Hua, Ferdinand Lali, Prasad Sawadkar   +8 more
wiley   +1 more source

Highly Sensitive Cuffless Blood Pressure Monitoring with Selective Laser‐Sintered Liquid Metal Conductors

Advanced Functional Materials, EarlyView.
A soft, compact, and cuffless system for continuous blood pressure monitoring using laser‐sintered liquid metal conductors is developed. The stretchability and sensitivity of the device enable real‐time, non‐invasive tracking of blood pressure, including recovery after exercise. This wearable device offers a practical solution for managing hypertension
Jung Jae Park, Sangwoo Hong, Yeongju Jung, Phillip Won, Carmel Majidi, Minwoo Kim, Seung Hwan Ko   +6 more
wiley   +1 more source

Zebrafish as a Model System for Brugada Syndrome

Reviews in Cardiovascular Medicine
Brugada syndrome (BrS) is an inheritable cardiac arrhythmogenic disease, associated with an increased risk of sudden cardiac death. It is most common in males around the age of 40 and the prevalence is higher in Asia than in Europe and the United States.
Leonie Verkerk, Arie O. Verkerk, Ronald Wilders   +2 more
doaj   +1 more source

Abnormal calcium homeostasis in heart failure with preserved ejection fraction is related to both reduced contractile function and incomplete relaxation: An electromechanically detailed biophysical modelling study

Frontiers in Physiology, 2015
Heart failure with preserved ejection fraction (HFpEF) accounts for about 50% of heart failure cases. It has features of incomplete relaxation and increased stiffness of the left ventricle.
Ismail eAdeniran, David eMacIver, David eMacIver, Jules eHancox, Jules eHancox, Henggui eZhang, Henggui eZhang   +6 more
doaj   +1 more source