Results 51 to 60 of about 190,574 (306)

A comprehensive mathematical model for cardiac perfusion

open access: yesScientific Reports, 2023
The aim of this paper is to introduce a new mathematical model that simulates myocardial blood perfusion that accounts for multiscale and multiphysics features. Our model incorporates cardiac electrophysiology, active and passive mechanics, hemodynamics,
Alberto Zingaro   +4 more
doaj   +1 more source

High admission levels of γ-glutamyltransferase predict poor myocardial perfusion after primary percutaneous intervention

open access: yesClinics, 2011
OBJECTIVE: This retrospective study aimed to investigate the relationship between admission levels of serum y-glutamyltransferase and poor myocardial perfusion after primary percutaneous coronary intervention in patients with acute myocardial infarction.
Uygar Cagdas Yuksel   +5 more
doaj   +1 more source

Clinical Application of Dynamic Contrast Enhanced Perfusion Imaging by Cardiovascular Magnetic Resonance

open access: yesFrontiers in Cardiovascular Medicine, 2021
Functionally significant coronary artery disease impairs myocardial blood flow and can be detected non-invasively by myocardial perfusion imaging. While multiple myocardial perfusion imaging modalities exist, the high spatial and temporal resolution of ...
Russell Franks   +3 more
doaj   +1 more source

The role of gated myocardial perfusion scintigraphy (GMPS) in myocarditis: A case report and review of the literature [PDF]

open access: yes, 2011
Acute myocarditis is one of the most challenging diagnoses and treatments in cardiology. The acute viral myocarditis diagnosis is usually based on high suspicion, history taking, and physical examination.
Amini, A.   +8 more
core   +2 more sources

The Relationship Between Some Complete Blood Count Parameters and Myocardial Perfusion: A Scintigraphic Approach

open access: yesWorld Journal of Nuclear Medicine, 2015
Recent studies have shown that there is a relationship between some inflammatory and biochemical markers derived from complete blood count (CBC) such as neutrophil/lymphocyte (N/L) ratio, platelet/lymphocyte (P/L) ratio, platelet distribution width (PDW),
Semra Ozdemir   +4 more
doaj   +1 more source

Diagnostic accuracy of myocardial perfusion imaging with czt technology. Systemic review and meta-analysis of comparison with invasive coronary angiography [PDF]

open access: yes, 2017
OBJECTIVES: This study sought to summarize the evidence on stress myocardial perfusion imaging (MPI) using cadmium-zinc-telluride (CZT) technology for the diagnosis of obstructive coronary artery disease (CAD). The CZT cameras are newly introduced, and
Biondi-Zoccai, Giuseppe   +5 more
core   +2 more sources

Impact of Arrhythmia on Myocardial Perfusion: A Computational Model-Based Study

open access: yesMathematics, 2021
(1) Background: Arrhythmia, which is an umbrella term for various types of abnormal rhythms of heartbeat, has a high prevalence in both the general population and patients with coronary artery disease.
Xinyang Ge   +3 more
doaj   +1 more source

Evaluation of the Appropriate Root Pressure for Maintaining Heartbeat during an Aortic Cross-clamp for Primary Repair of the Aortic Arch in Premature Infants with Associated Cardiac Anomalies [PDF]

open access: yes, 2010
We developed a new cardiopulmonary bypass (CPB) method to minimize myocardial damage during aortic arch reconstruction. In this method, coronary flow and heartbeat were stabilized by maintaining the aortic root pressure with an adjusted preload of the ...
Honjo, Osami   +5 more
core   +1 more source

Comparative analysis of instantaneous wave-free ratio and quantitative real-time myocardial contrast echocardiography for the assessment of myocardial perfusion

open access: yesFrontiers in Cardiovascular Medicine, 2022
Background and hypothesisThe field of coronary artery physiology is developing rapidly and changing the practice of interventional cardiology. A new functional evaluation technique using the instantaneous wave-free ratio (iFR) has become an alternative ...
Li Liang   +7 more
doaj   +1 more source

Appropriateness of referrals for single-photon emission computed tomography myocardial perfusion imaging (SPECT-MPI) in a developing community: A comparison between 2005 and 2009 versions of ACCF/ASNC appropriateness criteria [PDF]

open access: yes, 2011
Appropriateness of referrals for myocardial perfusion imaging (MPI) in developing countries has not been extensively studied. Our study was conducted to describe the ordering practices of physicians and appropriateness of MPI referrals in Iran.
Alborzi, A.   +7 more
core   +1 more source

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