Results 151 to 160 of about 170,980 (396)

Miniaturized Devices for On‐the‐Spot Generation of Small‐Diameter Vascular Grafts

Advanced Materials Technologies, EarlyView.
An intracorporeal extrusion device is developed for on‐the‐spot generation of vascular grafts with tunable diameters spanning from 1 to 6 mm. The device uses biomimetic polymers and light, to promptly obtaining biocompatible and high‐burst pressure‐resistant grafts.
Deyanira Hernandez‐Sanchez, Maxime‐Emmanuel Comtois‐Bona, Antony El‐Khoury, Sergio David Garcia Schejtman, Aidan Macadam, Juan‐David Figueroa‐Alegria, Jesus M. Calderon‐Torres, Irene Guzmán‐Soto, Marc Ruel, Erik J. Suuronen, Marcelo Muñoz, Emilio I. Alarcon   +11 more
wiley   +1 more source

Prognostic implication of thermodilution coronary flow reserve in patients with indeterminate pressure-bounded coronary flow reserve

International Journal of Cardiology, 2018
Recently, the concept of pressure-bounded coronary flow reserve (PB-CFR) has been introduced. However, using pressure-only data, a substantial proportion of patients could not be classified into high or low PB-CFR and remained as indeterminate PB-CFR.
Joon Hyung Doh, Doyeon Hwang, Bon-Kwon Koo, Bon-Kwon Koo, Joo Myung Lee, Jonghanne Park, Jonghanne Park, Eun Seok Shin, Eun Seok Shin, Chang-Wook Nam, Chee Hae Kim, Ki Hong Choi, Tae Min Rhee   +12 more
openaire   +4 more sources

Transformative 4D Printed SMPs into Soft Electronics and Adaptive Structures: Innovations and Practical Insights

Advanced Materials Technologies, EarlyView.
This review highlights recent advancements in 3DP techniques that incorporate emerging multifunctional SMP materials for applications in e‐electronics, soft actuators, biomedical devices, and more. Abstract Shape memory polymers (SMP) have recently gained significant attention as multifunctional materials for flexible and wearable electronics ...
Muhammad Yasir Khalid, Adam Otabil, Omar Samir Mamoun, Khalid Askar, Mahdi Bodaghi   +4 more
wiley   +1 more source

Determinants of Rejection Rate for Coronary CT Angiography Fractional Flow Reserve Analysis.

Radiology, 2019
Background Coronary artery fractional flow reserve (FFR) derived from CT angiography (FFTCT) enables functional assessment of coronary stenosis. Prior clinical trials showed 13%-33% of coronary CT angiography studies had insufficient quality for ...
G. Pontone, J. Weir-McCall, A. Baggiano, A. Del Torto, L. Fusini, M. Guglielmo, G. Muscogiuri, A. Guaricci, D. Andreini, M. Patel, K. Nieman, T. Akasaka, C. Rogers, B. Nørgaard, Jeroen J. Bax, G. Raff, K. Chinnaiyan, D. Berman, T. Fairbairn, Lynne Koweek, J. Leipsic   +20 more
semanticscholar   +1 more source

Piezoelectric Biomaterials for Bone Regeneration: Roadmap from Dipole to Osteogenesis

Advanced Science, EarlyView.
Piezoelectric biomaterials convert mechanical forces into electrical signals, offering novel strategies to restore and modulate bone microenvironments for tissue engineering. This review examines molecular dipole origins, spatial arrangements, and pseudo‐piezoelectric mechanisms and highlights dipole‐engineering techniques for osteogenesis regulation ...
Xiyao Ni, Yufei Cui, Mojtaba Salehi, Mui Ling Sharon Nai, Kun Zhou, Cian Vyas, Boyang Huang, Paulo Bartolo   +7 more
wiley   +1 more source

A machine-learning approach for computation of fractional flow reserve from coronary computed tomography.

Journal of applied physiology, 2016
Fractional flow reserve (FFR) is a functional index quantifying the severity of coronary artery lesions and is clinically obtained using an invasive, catheter-based measurement.
L. Itu, S. Rapaka, T. Passerini, B. Georgescu, C. Schwemmer, M. Schoebinger, T. Flohr, Puneet S. Sharma, D. Comaniciu   +8 more
semanticscholar   +1 more source

Beta-Blockers and Coronary Flow Reserve

, 2011
The knowledge of the impact of beta-blockers on Coronary Flow Reserve (CFR) is based on experimental and clinical studies which used invasive methods (mainly Doppler Flow Wire, DFW) and non-invasive tools including scintigraphic (mainly Positron Emission Tomography, PET), magnetic resonance and Doppler ultrasound imaging.
openaire   +5 more sources

Metabolic Stress‐Induced Choline Kinase α (CHKA) Activation in Endothelial Subpopulation Contributes to Diabetes‐Associated Microvascular Dysfunction

Advanced Science, EarlyView.
This study uncovers CHKA as a pivotal driver of vascular dysfunction in diabetic retinopathy and highlights its role in endothelial dysfunction through NAD⁺‐SIRT1‐Notch signaling. Single‐cell and functional analyses, combined with clinical and genetic validation, suggest CHKA as a promising therapeutic target for the prevention and treatment of ...
Ling Ren, Linyu Zhang, Yun Bai, Chang Huang, Xiaosa Li, Fanfei Ma, Wan Mu, Mudi Yao, Chang Jiang, Xiangjun Chen, Qin Jiang, Biao Yan   +11 more
wiley   +1 more source

Diagnostic performance of cardiac imaging methods to diagnose ischaemia-causing coronary artery disease when directly compared with fractional flow reserve as a reference standard: a meta-analysis

European Heart Journal, 2016
Aims The aim of this study was to determine the diagnostic performance of single-photon emission computed tomography (SPECT), stress echocardiography (SE), invasive coronary angiography (ICA), coronary computed tomography angiography (CCTA), fractional ...
I. Danad, J. Szymonifka, J. Twisk, B. Nørgaard, C. Zarins, P. Knaapen, J. Min   +6 more
semanticscholar   +1 more source

Utilization of translesional hemodynamics: comparison of pressure and flow methods in stenosis assessment in patie [PDF]

, 1996
Aim of this study is the assessment of feasibility and clinical usefulness of a new index of stenosis severity, the slope of the instantaneous transstenotic pressure gradient/velocity relationship.
Feyter, P.J. (Pim) de, Gil, R. (Robert), Mario, C. (Carlo) di, Schuurbiers, J.C.H. (Johan), Serruys, P.W.J.C. (Patrick)   +4 more
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