Magnetic Resonance Imaging Of Myocardial Deformation And Scarring In Coronary Artery Disease
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Magnetic Resonance Imaging Of Myocardial Deformation And Scarring In Coronary Artery Disease
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Author : Johan Kihlberg
language : en
Publisher: Linköping University Electronic Press
Release Date : 2017-11-15
Magnetic Resonance Imaging Of Myocardial Deformation And Scarring In Coronary Artery Disease written by Johan Kihlberg and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-15 with categories.
Although improved treatments have reduced the rates of acute complications from myocardial infarction, sequelae such as heart failure and sudden death threaten the future wellbeing of those patients. Secondary prevention after myocardial infarction is related to cardiovascular risk factors and the effect of the infarct on left ventricular function. Cardiovascular magnetic resonance imaging (CMR) is necessary to determine the size of the infarct scar and can with great precision determine left ventricular volumes, left ventricular ejection fraction, and deformation (strain and torsion). The purpose of this thesis was to improve on CMR methods to facilitate image acquisition and post processing in patients with high risk of coronary artery disease (CAD). In Paper 1, a three-dimensional phase-sensitive inversion-recovery (3D PSIR) sequence was modified to measure T1 during a single breath hold. The measured T1 values were used to extrapolate a map of T1 relaxation, which avoided the time-consuming manual determination of the inversion time. The data collection consisted of phantom experiments, Monte Carlo simulations of the effect of various heart rates, and clinical investigation of 18 patients with myocardial infarction. Scar images created with the modified sequence were compared to those created with the standard sequence. The 3D PSIR sequence was able to measure T1 relaxation with a high accuracy up to 800 ms, which is in the suitable range for scar imaging. Simulated arrhythmias showed that the method was robust and able to tolerate some variation in heart rate. The modified sequence provides measurements of inversion time that can be used to facilitate standard scar imaging or to reconstruct synthetic scar images. Images of infarct scar obtained with the 3D PSIR sequence bore striking similarity to images obtained with the standard sequence. In Paper 2, 125 patients with high risk of CAD were investigated using the displacement encoding with stimulated echoes (DENSE) sequence. Image segments with infarct scar area >50% (transmurality) could be identified with a sensitivity of 95% and a specificity of 80% based on circumferential strain calculated from the DENSE measurements. The DENSE sequence was also applied in other directions, but its sensitivity and specificity to detect scar was lower than when used for circumferential strain. In Paper 3, 90 patients with high risk of CAD were examined by DENSE, tagging with harmonic phase (HARP) imaging and cine imaging with feature tracking (FT), to detect cardiac abnormalities as manifested in end-systolic circumferential strain. Circumferential strain calculated with DENSE had higher sensitivity and specificity than the competing methods to detect infarction with transmurality >50%. Global circumferential strain measured by DENSE correlated better with global parameters such as left ventricular ejection fraction, myocardial wall mass, left ventricular end-diastolic and end-systolic volume; than strain measured by FT or HARP. In Paper 4, myocardial torsion was investigated using DENSE, HARP, and FT in 48 patients with high risk of CAD. Torsion measured by each of the three methods was correlated with other global measures such as left ventricular ejection fraction, left ventricular mass, and left ventricular end-diastolic and end-systolic volumes. The torsion measurements obtained with DENSE had a stronger relationship with left ventricular ejection fraction, left ventricular mass, and volumes than those obtained with HARP or FT. DENSE was superior to the other methods for strain and torsion measurement and can be used to describe myocardial deformation quantitatively and objectively.
Dilated Cardiomyopathy
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Author : Gianfranco Sinagra
language : en
Publisher: Springer
Release Date : 2019-05-17
Dilated Cardiomyopathy written by Gianfranco Sinagra and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-17 with Medical categories.
This open access book presents a comprehensive overview of dilated cardiomyopathy, providing readers with practical guidelines for its clinical management. The first part of the book analyzes in detail the disease’s pathophysiology, its diagnostic work up as well as the prognostic stratification, and illustrates the role of genetics and gene-environment interaction. The second part presents current and future treatment options, highlighting the importance of long-term and individualized treatments and follow-up. Furthermore, it discusses open issues, such as the apparent healing phenomenon, the early prognosis of arrhythmic events or the use of genetic testing in clinical practice. Offering a multidisciplinary approach for optimizing the clinical management of DCM, this book is an invaluable aid not only for the clinical cardiologists, but for all physicians involved in the care of this challenging disease.
Coronary Artery Disease And The Myocardial Ischemic Cascade An Issue Of Radiologic Clinics Of North America
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Author : U. Joseph Schoepf
language : en
Publisher: Elsevier Health Sciences
Release Date : 2015-04-07
Coronary Artery Disease And The Myocardial Ischemic Cascade An Issue Of Radiologic Clinics Of North America written by U. Joseph Schoepf and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-07 with Medical categories.
State of the Art CT and MR Imaging of Coronary Artery Disease and the Myocardial Ischemic Cascade is covered extensively in this issue of Radiologic Clinics. Articles will include: Imaging Coronary Artery Disease and the Myocardial Ischemic Cascade; CT Imaging of Coronary Artery Plaque; Coronary CT Angiography in Clinical Practice; Beyond Stenosis Detection: CT Approaches for Determining the Functional Relevance of Coronary Artery Disease; CT Assessment of Coronary Artery Disease; Cardiac CT for the Evaluation of the Acute Chest Pain Syndrome; Current State of the Art Cardiovascular MRI Techniques for Assessment of Ischemic Heart Disease; Global and Regional Functional Assessment of Ischemic Heart Disease with Cardiac MRI; MRI of the Coronary Vasculature: Imaging the Lumen, Wall and Beyond; Delayed Enhanced Viability Imaging: Techniques and Clinical Applications; Tissue Characterization of the Left Ventricular Myocardium: State of the Art Techniques and Emerging Clinical Utility; Stress Cardiac MRI: the Role of Stress Functional Assessment and Perfusion Imaging in the Evaluation of Ischemic Heart Disease, and much more!
Magnetic Resonance Imaging Of Congenital Heart Disease
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Author : Mushabbar A. Syed
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-19
Magnetic Resonance Imaging Of Congenital Heart Disease written by Mushabbar A. Syed and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-19 with Medical categories.
This textbook is alone in focusing on the subject of cardiac magnetic resonance (CMR) imaging in pediatric and adult patients with congenital heart disease. The topic of congenital heart disease imaging is usually relegated to a single chapter in most general CMR texts. The expanding scope of CHD warrants a text dedicated to covering CHD and CMR imaging in detail. Our proposed book aims to be a comprehensive and authoritative text on this subject. This book is be a multi-authored, illustrated text that includes supplementary access to a number of clinical videos. Authors have been selected from imaging experts in the most medically advanced areas of the world, heavily weighted by experts in the US and Europe to produce the quintessential reference in this topic.
Latest Advances In Clinical And Pre Clinical Cardiovascular Mri
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Author : Christakis Constantinides
language : en
Publisher: Bentham Science Publishers
Release Date : 2014-12-18
Latest Advances In Clinical And Pre Clinical Cardiovascular Mri written by Christakis Constantinides and has been published by Bentham Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-18 with Medical categories.
This e-book series presents readers with information about state-of-the-art developments in clinical and pre-clinical cardiovascular magnetic resonance imaging (MRI).The first volume of the series brings contributions from prominent scientists and the to
Diseases Of The Chest Breast Heart And Vessels 2019 2022
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Author : Juerg Hodler
language : en
Publisher: Springer
Release Date : 2019-02-19
Diseases Of The Chest Breast Heart And Vessels 2019 2022 written by Juerg Hodler and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-19 with Medical categories.
This open access book focuses on diagnostic and interventional imaging of the chest, breast, heart, and vessels. It consists of a remarkable collection of contributions authored by internationally respected experts, featuring the most recent diagnostic developments and technological advances with a highly didactical approach. The chapters are disease-oriented and cover all the relevant imaging modalities, including standard radiography, CT, nuclear medicine with PET, ultrasound and magnetic resonance imaging, as well as imaging-guided interventions. As such, it presents a comprehensive review of current knowledge on imaging of the heart and chest, as well as thoracic interventions and a selection of "hot topics". The book is intended for radiologists, however, it is also of interest to clinicians in oncology, cardiology, and pulmonology.
Echocardiography In Heart Failure And Cardiac Electrophysiology
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Author : Umashankar Lakshmanadoss
language : en
Publisher: BoD – Books on Demand
Release Date : 2016-10-19
Echocardiography In Heart Failure And Cardiac Electrophysiology written by Umashankar Lakshmanadoss and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-19 with Medical categories.
The world of echocardiography continues to be full of exciting new technological developments with an ultimate goal of better patient care. In this book, titled "Echocardiography in Heart Failure and Cardiac Electrophysiology", authors from various parts of the world contributed to the advancement of the field. We have included various chapters about the use of echocardiography and modalities of imaging in various common clinical scenarios - ranging from evaluation of commonly ignored right ventricle, imaging in congestive heart failure, to echocardiographic evaluation of critically ill patients. We have also included topics describing the use of echocardiography in cardiac electrophysiology with special interest to cardiac resynchronization therapy and atrial fibrillation ablation. These topics would be of great interest to the clinicians whether they are trainees, physicians, advanced care providers, or anyone involved in the patient care.
Applied Echocardiography In Coronary Artery Disease
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Author : RR Kasliwal
language : en
Publisher: JP Medical Ltd
Release Date : 2016-10-31
Applied Echocardiography In Coronary Artery Disease written by RR Kasliwal and has been published by JP Medical Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-31 with Medical categories.
Applied Echocardiography in CAD is a comprehensive guide to imaging techniques for a variety of heart conditions. Divided into two sections; section A covers the fundamentals of imaging techniques, and section B covers the clinical applications of these techniques. Applied Echocardiography in CAD provides an excellent source of reference for cardiologists and residents faced with these conditions day-to-day.
Electroanatomical Mapping
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Author : Amin Al-Ahmad
language : en
Publisher: John Wiley & Sons
Release Date : 2011-08-26
Electroanatomical Mapping written by Amin Al-Ahmad and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-26 with Medical categories.
Catheter ablation has become a mainstay in the therapy of cardiac arrhythmias. The development of electroanatomical mapping technologies (such as CARTO) has facilitated more complex ablation procedures. This brand new book encompasses cardiac arrhythmias and practical tips for users of electroanatomical mapping, providing a color atlas of different arrhythmias, presented as cases, that have been carefully mapped and correlated with clinical and electrogram data. Including maps from all the major mapping systems such as CARTO, NAVX, ESI, RPM as well as activation maps and voltage maps, this book is an ideal reference book and learning tool for electrophysiologists, electrophysiology fellows and electrophysiology laboratory staff.
Multimodality Imaging In Acute Coronary Syndrome
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Author : Jinwei Tian
language : en
Publisher: Frontiers Media SA
Release Date : 2022-06-27
Multimodality Imaging In Acute Coronary Syndrome written by Jinwei Tian and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-27 with Medical categories.