Results 71 to 80 of about 303,973 (343)

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Technetium-99m pyrophosphate cardiac SPECT in endomyocardial biopsy negative cardiac amyloidosis

Radiology Case Reports, 2018
Cardiac amyloidosis is an under-appreciated cause of heart failure. Establishing a diagnosis is important because traditional heart failure treatment regimens can worsen left ventricular failure in this disease. Endomyocardial biopsy is the gold standard
Martin Krupa, MD, Rina Nguyen, BS, Jonathan Revels, DO, Lester S. Johnson, MD, PhD, FACR   +3 more
doaj   +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

Ultrasound‐Triggered Gelation for Restoring Biomechanical Properties of Degenerated Functional Spinal Units

Advanced Healthcare Materials, EarlyView.
This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans, Anna P. Constantinou, Matthew J. Kibble, Valeria Nele, Daniel Reumann, Luca Bau, Sebastien J. P. Callens, James P. K. Armstrong, Nicolas Newell, Constantin C. Coussios, Molly M. Stevens, Michael D. Gray   +11 more
wiley   +1 more source

Hypertrophic Cardiomyopathy Phenotypes and the Utility of Cardiac Magnetic Resonance Imaging: An Illustrative Case Series

Annals of Internal Medicine: Clinical Cases
Cardiac magnetic resonance imaging is the most sensitive and specific imaging method for characterizing the myocardium, monitoring disease, and risk stratifying many cardiomyopathy phenotypes.
Grace Alexander, Mahi L. Ashwath
doaj   +1 more source

Accuracy of prediction of infarct-related arrhythmic circuits from image-based models reconstructed from low and high resolution MRI. [PDF]

, 2015
Identification of optimal ablation sites in hearts with infarct-related ventricular tachycardia (VT) remains difficult to achieve with the current catheter-based mapping techniques.
Arevalo, Hermenegild, Ashikaga, Hiroshi, Deng, Dongdong, Halperin, Henry, McVeigh, Elliot, Pashakhanloo, Farhad, Prakosa, Adityo, Trayanova, Natalia   +7 more
core   +2 more sources

Preliminary Study of a Ninj1‐Loaded Bimodal Ultrasound/NIR Fluorescence Targeted Molecular Probe for Diagnosing Early‐Stage Inflammation in Coronary Microvascular Dysfunction

Advanced Healthcare Materials, EarlyView.
Coronary microvascular dysfunction (CMD) targeting remains a challenge for precise diagnosis. This work presents a dual‐modal nanoprobe (T‐IR780‐NBs) that combines ultrasound contrast with near‐infrared fluorescence. This technology utilizes proteomics‐derived antibodies that specifically localize to inflamed and injured cardiac tissue, enabling ...
Xiaohui Xu, Lina Guan, Baihetiya Tayier, Chen Yuan, Shangke Chen, Qi Shi, Yuming Mu   +6 more
wiley   +1 more source

Microvascular Coronary Artery Embolism Presenting as an OHCA STEMI Call Detected by CMR

European Journal of Case Reports in Internal Medicine, 2020
We describe a case of coronary artery embolism leading to an out-of-hospital cardiac arrest (OHCA) in which the diagnosis was achieved with utilisation of cardiac magnetic resonance imaging. The patient was otherwise well prior to this episode. Emergency
Napohn Chongprasertpon, Santhosh David
doaj   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

Assessment of Myocardial Infarction by Cardiac Magnetic Resonance Imaging and Long-Term Mortality

Arquivos Brasileiros de Cardiologia, 2015
Background: Cardiac magnetic resonance imaging provides detailed anatomical information on infarction. However, few studies have investigated the association of these data with mortality after acute myocardial infarction.
João Luiz Fernandes Petriz, Bruno Ferraz de Oliveira Gomes, Braulio Santos Rua, Clério Francisco Azevedo, Marcelo Souza Hadlich, Henrique Thadeu Periard Mussi, Gunnar de Cunto Taets, Emília Matos do Nascimento, Basílio de Bragança Pereira, Nelson Albuquerque de Souza e Silva   +9 more
doaj   +1 more source