Results 41 to 50 of about 56,885 (337)

Physiological Disease Pattern as Assessed by Pull Back Pressure Gradient Index in Vessels With FFR/iFR Discordance.

JACC: Cardiovascular Interventions
BACKGROUND Fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are discordant in approximately 20% of cases, and it is unclear whether this is influenced by the physiological pattern of coronary artery disease (CAD).
P. Revaiah, Tsung-Ying Tsai, A. Chinhenzva, K. Miyashita, A. Tobe, A. Oshima, G. Ferraz-Costa, S. Garg, S. Biscaglia, Manesh Patel, C. Collet, Takashi Akasaka, J. Escaned, Y. Onuma, P. Serruys   +14 more
semanticscholar   +1 more source

OPTIMAL CUT-OFF POINTS OF INSTANTANEOUS WAVE-FREE RATIO IN THE ASSESSMENT OF THE FUNCTIONAL SIGNIFICANCE OF CORONARY ARTERY STENOSES USING NONINVASIVE METHODS AS REFERENCE

Евразийский Кардиологический Журнал, 2016
Objective: the aim of our study was to determine the optimal instantaneous wave-free ratio (iFR) cut-off points in assessing the functional significance of intermediate coronary artery stenoses in patients with chronic coronary artery diseases (CAD ...
D. I. Darenskiy, V. V. Gramovich, E. A. Zharova, M. G. Mitroshkin, R. V. Atanesyan, G. N. Bakashvili, Y. G. Matchin   +6 more
doaj   +1 more source

Synthesis of a Novel Phosphorous-Nitrogen Based Charring Agent and Its Application in Flame-retardant HDPE/IFR Composites

Polymers, 2019
In this work, a novel phosphorous–nitrogen based charring agent named poly(1,3-diaminopropane-1,3,5-triazine-o-bicyclic pentaerythritol phosphate) (PDTBP) was synthesized and used to improve the flame retardancy of high-density polyethylene (HDPE ...
Junlei Chen, Ji-Hui Wang, Ai-Qing Ni, Hong-Da Chen, Penglong Shen   +4 more
semanticscholar   +1 more source

Прогнозирование уровня смертности от инфекции Mpox в Африке с использованием гибридного подхода

Журнал инфектологии
Objective: The main objective of our work is to forecast the daily Infection Fatality Rate (IFR) index for Mpox, a disease that has posed significant challenges, particularly in African countries.
Djillali Seba
doaj   +1 more source

Rationale and design of the Concordance study between FFR and iFR for the assessment of lesions in the left main coronary artery. The ILITRO-EPIC-07 Trial

REC: Interventional Cardiology (English Ed.), 2022
Introduction and objectives: Patients with left main coronary artery (LMCA) stenosis have been excluded from the trials that support the non-inferiority of the instantaneous wave-free ratio (iFR) compared to the fractional flow reserve (FFR) in the ...
Oriol Rodríguez-Leor, José M. de la Torre-Hernández, Tamara García-Camarero, Ramón López-Palop, Bruno García del Blanco, Xavier Carrillo, Juan José Portero-Portaz, Marcelo Jiménez-Kockar, Josep Gómez-Lara, Soledad Ojeda, Fernando Alfonso, Salvatore Brugaletta, Ana Planas del Viejo, José Antonio Linares, Agustín Fernández-Cisnal, Beatriz Vaquerizo, Francisco Fernández-Salinas, José Francisco Díaz-Fernández, Juan Carlos Rama-Merchán, Eduardo Molina, Érika Muñoz-García, Francisco Morales, Ramiro Trillo, Miren Tellería, Juan Rondán, Pablo Avanzas, José Moreu, José Antonio Baz-Alonso, Felipe Hernández, Javier Escaned, Juan Sanchis, Fernando Lozano, Beatriz Toledano, Martí Puigfel, Mario Sádaba, Armando Pérez de Prado   +35 more
doaj   +1 more source

Differential predictability for high-risk plaque characteristics between fractional flow reserve and instantaneous wave-free ratio

Scientific Reports, 2023
To evaluate the differential associations of high-risk plaque characteristics (HRPC) with resting or hyperemic physiologic indexes (instantaneous wave-free ratio [iFR] or fractional flow reserve [FFR]), a total of 214 vessels from 127 patients with ...
Joo Myung Lee, Doosup Shin, Seung Hun Lee, Ki Hong Choi, Sung Mok Kim, Eun Ju Chun, Kwan Yong Lee, Doyeon Hwang, Sung Gyun Ahn, Adam J. Brown, Hernán Mejía-Rentería, Adrien Lefieux, David Molony, Kiyuk Chang, Tsunekazu Kakuta, Javier Escaned, Habib Samady   +16 more
doaj   +1 more source

Far infra-red therapy promotes ischemia-induced angiogenesis in diabetic mice and restores high glucose-suppressed endothelial progenitor cell functions

Cardiovascular Diabetology, 2012
Background Far infra-red (IFR) therapy was shown to exert beneficial effects in cardiovascular system, but effects of IFR on endothelial progenitor cell (EPC) and EPC-related vasculogenesis remain unclear.
Huang Po-Hsun, Chen Jaw-Wen, Lin Chih-Pei, Chen Ying-Hwa, Wang Chao-Hung, Leu Hsin-Bang, Lin Shing-Jong   +6 more
doaj   +1 more source

Preparation of MWCNTs@SiO2 hybrids and its flame retardant synergistic effects with hyperbranched triazine‐based flame retardant on polypropylene

SPE Polymers, 2021
Intumescent flame retardant (IFR) which is composed of ammonium polyphosphate (APP) and hyperbranched triazine‐based char‐forming agent (HECA) is widely used in polypropylene (PP).
Jiayou Xu, Haiming Deng, Minyi Luo
doaj   +1 more source

General aviation single pilot IFR autopilot study [PDF]

, 1983
Five levels of autopilot complexity were flown in a single engine IFR simulation for several different IFR terminal operations. A comparison was made of the five levels of complexity ranging from no autopilot to a fully coupled lateral and vertical ...
Bergeron, H. P.
core  

When Do Robots Go Green? Unveiling Mechanisms, Thresholds, and Spillovers of Industrial Robotics on Global Ecological Capacity

Business Strategy and the Environment, EarlyView.
ABSTRACT This paper examines the relationship between industrial robotics adoption and ecological capacity, measured by biocapacity, using panel data from 50 countries over the period 2000–2024. We investigate the transmission mechanisms, non‐linearities, spatial spillovers, and heterogeneity characterizing this relationship.
Brahim Bergougui, Hamid Ghazi H. Sulimany   +1 more
wiley   +1 more source