keyword
https://read.qxmd.com/read/38525295/lightweight-preprocessing-and-template-matching-facilitate-streamlined-ischemic-myocardial-scar-classification
#1
JOURNAL ARTICLE
Michael H Udin, Sara Armstrong, Alice Kai, Scott Doyle, Ciprian N Ionita, Saraswati Pokharel, Umesh C Sharma
PURPOSE: Ischemic myocardial scarring (IMS) is a common outcome of coronary artery disease that potentially leads to lethal arrythmias and heart failure. Late-gadolinium-enhanced cardiac magnetic resonance (CMR) imaging scans have served as the diagnostic bedrock for IMS, with recent advancements in machine learning enabling enhanced scar classification. However, the trade-off for these improvements is intensive computational and time demands. As a solution, we propose a combination of lightweight preprocessing (LWP) and template matching (TM) to streamline IMS classification...
March 2024: Journal of Medical Imaging
https://read.qxmd.com/read/38522623/fully-automated-contrast-selection-of-joint-bright-and-black-blood-late-gadolinium-enhancement-imaging-for-robust-myocardial-scar-assessment
#2
JOURNAL ARTICLE
Victor de Villedon de Naide, Jean-David Maes, Manuel Villegas-Martinez, Indra Ribal, Aurélien Maillot, Valéry Ozenne, Géraldine Montier, Thibaut Boullé, Soumaya Sridi, Pauline Gut, Thomas Küstner, Matthias Stuber, Hubert Cochet, Aurélien Bustin
PURPOSE: Joint bright- and black-blood MRI techniques provide improved scar localization and contrast. Black-blood contrast is obtained after the visual selection of an optimal inversion time (TI) which often results in uncertainties, inter- and intra-observer variability and increased workload. In this work, we propose an artificial intelligence-based algorithm to enable fully automated TI selection and simplify myocardial scar imaging. METHODS: The proposed algorithm first localizes the left ventricle using a U-Net architecture...
March 22, 2024: Magnetic Resonance Imaging
https://read.qxmd.com/read/38488386/implications-of-cardiac-scarring-on-body-image-disturbance-among-young-adults-with-congenital-heart-defects
#3
JOURNAL ARTICLE
Victoria R Grant, Canice E Crerand, Jamie L Jackson
BACKGROUND: Many individuals with congenital heart disease (CHD) undergo open heart surgery, resulting in prominent scarring. However, little research has assessed the impact of surgical scarring on body image in this population. OBJECTIVE: Within this cross-sectional study, associations between body image concerns, anxiety and depression symptoms, and health-related quality of life among individuals with CHD were evaluated. METHODS: Young adults with CHD (N = 138) completed the Body Image Disturbance Questionnaire along with other patient-reported outcome measures...
March 13, 2024: Journal of Cardiovascular Nursing
https://read.qxmd.com/read/38426763/association-between-subclinical-atherosclerosis-burden-and-unrecognized-myocardial-infarction-detected-by-cardiac-magnetic-resonance-in-middle-aged-adults
#4
JOURNAL ARTICLE
Leticia Fernández-Friera, Ana García-Alvarez, Belen Oliva, Inés García-Lunar, Iris García, Andrea Moreno-Arciniegas, Sandra Gómez-Talavera, Cristina Pérez-Herreras, Javier Sánchez-González, Vicente Martínez de Vega, Xavier Rossello, Héctor Bueno, Antonio Fernández-Ortiz, Borja Ibañez, Javier Sanz, Valentín Fuster
AIMS: Evidence on the association between subclinical atherosclerosis (SA) and cardiovascular (CV) events in low-risk populations is scant. To study the association between SA burden and an ischemic scar (IS), identified by cardiac magnetic resonance (CMR), as a surrogate of CV endpoint, in a low-risk population. METHODS: A cohort of 712 asymptomatic middle-aged individuals from the Progression of Early SA (PESA-CNIC-Santander) study (median age 51 years, 84% male, median SCORE2 3...
March 1, 2024: European Heart Journal Cardiovascular Imaging
https://read.qxmd.com/read/38421401/-history-of-the-implantable-cardioverter-defibrillator-in-germany
#5
REVIEW
Michael Block, Helmut U Klein
The implantable cardioverter-defibrillator (ICD) was a breakthrough in the prevention of sudden cardiac death. After years of technical development in the USA, Michel Mirowski succeeded in proving reliable automatic defibrillation of ventricular tachyarrhythmias through initial human implantations in 1980, despite many obstacles. Nearly 4 years later, the first patients received ICDs at multiple centers in Germany. Subsequently, outside the USA, Germany became the country with highest implantation rates...
February 29, 2024: Herzschrittmachertherapie & Elektrophysiologie
https://read.qxmd.com/read/38385929/electrophysiological-characterization-of%C3%A2-subclinical-and-overt-hypertrophic-cardiomyopathy-by-magnetic-resonance-imaging-guided-electrocardiography
#6
JOURNAL ARTICLE
George Joy, Luis R Lopes, Matthew Webber, Alessandra M Ardissino, James Wilson, Fiona Chan, Iain Pierce, Rebecca K Hughes, Konstantinos Moschonas, Hunain Shiwani, Robert Jamieson, Paula P Velazquez, Ramya Vijayakumar, Erica Dall'Armellina, Peter W Macfarlane, Charlotte Manisty, Peter Kellman, Rhodri H Davies, Maite Tome, Vladan Koncar, Xuyuan Tao, Christoph Guger, Yoram Rudy, Alun D Hughes, Pier D Lambiase, James C Moon, Michele Orini, Gabriella Captur
BACKGROUND: Ventricular arrhythmia in hypertrophic cardiomyopathy (HCM) relates to adverse structural change and genetic status. Cardiovascular magnetic resonance (CMR)-guided electrocardiographic imaging (ECGI) noninvasively maps cardiac structural and electrophysiological (EP) properties. OBJECTIVES: The purpose of this study was to establish whether in subclinical HCM (genotype [G]+ left ventricular hypertrophy [LVH]-), ECGI detects early EP abnormality, and in overt HCM, whether the EP substrate relates to genetic status (G+/G-LVH+) and structural phenotype...
February 13, 2024: Journal of the American College of Cardiology
https://read.qxmd.com/read/38373128/towards-enabling-cardiac-digital-twins-of-myocardial-infarction-using-deep-computational-models-for-inverse-inference
#7
JOURNAL ARTICLE
Lei Li, Julia Camps, Zhinuo Wang, Marcel Beetz, Abhirup Banerjee, Blanca Rodriguez, Vicente Grau
Cardiac digital twins (CDTs) have the potential to offer individualized evaluation of cardiac function in a non-invasive manner, making them a promising approach for personalized diagnosis and treatment planning of myocardial infarction (MI). The inference of accurate myocardial tissue properties is crucial in creating a reliable CDT of MI. In this work, we investigate the feasibility of inferring myocardial tissue properties from the electrocardiogram (ECG) within a CDT platform. The platform integrates multi-modal data, such as cardiac MRI and ECG, to enhance the accuracy and reliability of the inferred tissue properties...
February 19, 2024: IEEE Transactions on Medical Imaging
https://read.qxmd.com/read/38337771/cardiac-fibrosis-automated-diagnosis-based-on-fibrosisnet-network-using-cmr-ischemic-cardiomyopathy
#8
JOURNAL ARTICLE
Mohamed Bekheet, Mohammed Sallah, Norah S Alghamdi, Roxana Rusu-Both, Ahmed Elgarayhi, Mohammed Elmogy
Ischemic heart condition is one of the most prevalent causes of death that can be treated more effectively and lead to fewer fatalities if identified early. Heart muscle fibrosis affects the diastolic and systolic function of the heart and is linked to unfavorable cardiovascular outcomes. Cardiac magnetic resonance (CMR) scarring, a risk factor for ischemic heart disease, may be accurately identified by magnetic resonance imaging (MRI) to recognize fibrosis. In the past few decades, numerous methods based on MRI have been employed to identify and categorize cardiac fibrosis...
January 24, 2024: Diagnostics
https://read.qxmd.com/read/38296010/predictors-of-non-pulmonary-vein-triggers-for-atrial-fibrillation-a-clinical-risk-score
#9
JOURNAL ARTICLE
Munveer Thind, Alireza Oraii, Corentin Chaumont, Martín R Arceluz, Masahiro Sekigawa, Haran Yogasundaram, Alan Sugrue, Maiwand Mirwais, Ahmed B AlSalem, Erica S Zado, Gustavo S Guandalini, Timothy M Markman, Rajat Deo, Robert D Schaller, Sanjay Dixit, Andrew E Epstein, Gregory E Supple, Cory M Tschabrunn, Pasquale Santangeli, David J Callans, Matthew C Hyman, Saman Nazarian, David S Frankel, Francis E Marchlinski
BACKGROUND: Targeting non-pulmonary vein triggers (NPVTs) after pulmonary vein isolation may reduce atrial fibrillation (AF) recurrence. Isoproterenol infusion and cardioversion of spontaneous or induced AF can provoke NPVTs but typically require vasopressor support and increased procedure time. OBJECTIVE: To identify risk factors for the presence of NPVTs and create a risk score to identify higher-risk subgroups. METHODS: Using AF ablation registry at the Hospital of the University of Pennsylvania, we included consecutive patients who underwent AF ablation between January 2021 and December 2022...
January 29, 2024: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://read.qxmd.com/read/38265540/determination-of-viable-myocardium-through-delayed-enhancement-cardiac-magnetic-resonance-imaging-combined-with-18-f-fdg-pet-myocardial-perfusion-metabolic-imaging-before-cabg
#10
JOURNAL ARTICLE
Dongsheng Xu, Jiwang Zhang, Bing Liu, Donghai Fu, Jianming Li, Lijuan Fan
PURPOSE: Study aims to investigate the consistency of delayed enhancement cardiac magnetic resonance imaging (DE-CMR) and 18 F-FDG PET myocardial imaging in evaluating myocardial viability before CABG. METHODS: The study analyzed data from 100 patients who were examined with DE-CMR, PET imaging, and echocardiography before and after CABG. All subjects were followed up for 6-12 month post- CABG. RESULTS: DE-CMR and PET imaging have high consistency (90...
January 24, 2024: International Journal of Cardiovascular Imaging
https://read.qxmd.com/read/38198223/electrocardiographic-predictors-of-left-ventricular-scar-in-athletes-with-right-ventricular-bundle-branch-block-premature-ventricular-beats
#11
JOURNAL ARTICLE
Luigi Sciarra, Paolo Golia, Antonio Scarà, Antonio Gianluca Robles, Melissa De Maio, Zefferino Palamà, Alessio Borrelli, Mauro Di Roma, Alberto D'Arielli, Leonardo Calò, Sabina Gallina, Fabrizio Ricci, Pietro Delise, Alessandro Zorzi, Martina Nesti, Silvio Romano, Elena Cavarretta
AIMS: Right bundle branch block (RBBB) morphology non-sustained ventricular arrhythmias (VAs) have been associated with the presence of non-ischemic left ventricular scar (NLVS) in athletes. Aim of this cross-sectional study was to identify clinical and ECG predictors of the presence of NLVS in athletes with RBBB VAs. METHODS: Sixty-four athletes (median age 39(24-53) years, 79% males) with non-sustained RBBB VAs underwent cardiac magnetic resonance(CMR) with late gadolinium enhancement in order to exclude the presence of a concealed structural heart disease...
January 10, 2024: European Journal of Preventive Cardiology
https://read.qxmd.com/read/38176771/ultrasound-based-characterization-of-ventricular-tachycardia-scar-and-arrhythmogenic-substrate-the-soundscar-study
#12
JOURNAL ARTICLE
Nathan Denham, Wern Yew Ding, Timothy Campbell, Simon Modi, Vishal Luther, Derick Todd, Saurabh Kumar, Sharad Agarwal, Saagar Mahida
BACKGROUND: Intracardiac echocardiography (ICE) represents a valuable image integration technique, with the unique advantage of dynamic real-time scar characterization. OBJECTIVES: The goals of this study were to assess the correlation between ICE-defined and electroanatomic mapping (EAM)-defined scar in patients with ischemic cardiomyopathy and to define the outcomes of ICE-guided ventricular tachycardia (VT) ablation. METHODS: Thirty-eight patients with ischemic cardiomyopathy (SOUNDSCAR cohort) underwent full left ventricular (LV) ICE imaging and EAM...
January 2024: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://read.qxmd.com/read/38161667/use-of-cardiovascular-magnetic-resonance-for-risk-stratification-in-repaired-tetralogy-of-fallot
#13
REVIEW
Sarah Ghonim, Sonya V Babu-Narayan
The risk of premature death in adult patients with repaired tetralogy of Fallot is real and not inconsiderable. From the third decade of life, the incidence of malignant ventricular arrhythmia (VA) is known to exponentially rise. Progressive adverse mechanoelectrical modelling because of years of volume and/or pressure overload from residual pulmonary valve dysfunction and ventricular scar creates the perfect catalyst for VA. Although potentially lifesaving, implantable cardiac defibrillators are associated with substantial psychological and physical morbidity...
December 2023: CJC Pediatr Congenit Heart Dis
https://read.qxmd.com/read/37971706/developing-and-evaluating-a-chronic-ischemic-cardiomyopathy-in-swine-model-by-rest-and-stress-cmr
#14
JOURNAL ARTICLE
Baiyan Zhuang, Chen Cui, Jian He, Jing Xu, Xin Wang, Li Li, Liujun Jia, Weichun Wu, Xiaoxin Sun, Shuang Li, Di Zhou, Wenjing Yang, Yining Wang, Leyi Zhu, Arlene Sirajuddin, Shihua Zhao, Minjie Lu
A large animal model of chronic coronary artery disease (CAD) is crucial for the understanding the underlying pathophysiological processes of chronic CAD and consequences for cardiac structure and function. The goal of this study was to develop a chronic model of CAD in a swine model and to evaluate the changes of myocardial structure, myocardial motility, and myocardial viability during coronary stenosis. A total of 30 swine (including 24 experimental animals and 6 controls) were enrolled. The chronic ischemia model was constructed by using Ameroid constrictor in experimental group...
November 16, 2023: International Journal of Cardiovascular Imaging
https://read.qxmd.com/read/37931010/early-diagnosis-of-caesarean-scar-pregnancy-by-ultrasound-a-novel-simple-and-rapid-clinical-classification-scoring-system
#15
JOURNAL ARTICLE
Xiaona Cai, Xuelian Zhu, Yaoxin Zhu, Chenying Su, Tianran Chen, Yu Zhan, Min Xue, Hui Li, Lixia Chen
AIM: In the recent years, with the increase in the caesarean section rate, the incidence of caesarean scar pregnancy (CSP) has shown a significant upwards trend. We propose a novel, simple and rapid clinical and ultrasound (US) classification scoring system to assist in the early diagnosis of CSP. MATERIAL AND METHODS: A total of 385 patients with CSP were included in the study. All patients were given a comprehensive score, iincluding clinical data (whether HCG is consistent with gestational age and vaginal bleeding) and US findings (linea a and b, gestational sac morphology, the presence of primitive cardiac tube beat, and color Doppler aspect)...
November 6, 2023: Medical Ultrasonography
https://read.qxmd.com/read/37869273/the-influence-of-arm-positions-on-mechanical-dyssynchrony-measured-by-gated-myocardial-perfusion-imaging
#16
JOURNAL ARTICLE
Zhongqiang Zhao, Cheng Wang, Zeyu Peng, Ju Bu, Chunxiang Li, Dianfu Li, Weihua Zhou, Rongsheng Lu, Lijun Tang, Yong Li
BACKGROUND: In routine procedures, patient's arms are positioned above their heads to avoid potential attenuation artifacts and reduced image quality during gated myocardial perfusion imaging (G-MPI). However, it is difficult to achieve this action in the acute period following pacemaker implantation. This study aimed to explore the influence of arm positioning on myocardial perfusion imaging (MPI) in different types of heart disease. METHODS: This study was conducted retrospectively...
October 1, 2023: Quantitative Imaging in Medicine and Surgery
https://read.qxmd.com/read/37865006/segmentation-of-cardiac-infarction-in-delayed-enhancement-mri-using-probability-map-and-transformers-based-neural-networks
#17
JOURNAL ARTICLE
Erwan Lecesne, Antoine Simon, Mireille Garreau, Gilles Barone-Rochette, Céline Fouard
BACKGROUND AND OBJECTIVE: Automatic segmentation of myocardial infarction is of great clinical interest for the quantitative evaluation of myocardial infarction (MI). Late Gadolinium Enhancement cardiac MRI (LGE-MRI) is commonly used in clinical practice to quantify MI, which is crucial for clinical diagnosis and treatment of cardiac diseases. However, the segmentation of infarcted tissue in LGE-MRI is highly challenging due to its high anisotropy and inhomogeneities. METHODS: The innovative aspect of our work lies in the utilization of a probability map of the healthy myocardium to guide the localization of infarction, as well as the combination of 2D U-Net and U-Net transformers to achieve the final segmentation...
October 13, 2023: Computer Methods and Programs in Biomedicine
https://read.qxmd.com/read/37811045/the-clinical-and-genotypic-phenotypic-findings-of-mucopolysaccharidosis-vi-patients-an-iraqi-single-study-descriptive-study
#18
JOURNAL ARTICLE
Saja Baheer Abdul Wahhab, Rabab Farhan Thejeal, Sarya Swed
BACKGROUND: Maroteaux-Lamy syndrome (mucopolysaccharidosis type VI; MPS VI) is a chronic illness that causes progressive enlargement, inflammation, or scarring of several tissues and organs until their collapse. In most cases, an infant with MPS VI shows no symptoms. The early signs and symptoms of MPS VI in children often develop in the first few months of life. MPS VI affects various systems in the body, including the skeletal, cardiac, and respiratory systems. The authors aim in our study to describe the clinical and genotypic-phenotypic findings of MPS VI patients in 'children Welfare Teaching Hospital, Medical City Complex...
October 2023: Annals of Medicine and Surgery
https://read.qxmd.com/read/37744936/systolic-blood-pressure-%C3%A2-110-mm-hg-is-associated-with-severe-coronary-microvascular-ischemia-and-higher-risk-for-ventricular-arrhythmias-in-hypertrophic-cardiomyopathy
#19
JOURNAL ARTICLE
Dai-Yin Lu, Hulya Yalcin, Fatih Yalcin, Sanjay Sivalokanathan, Gabriela V Greenland, Ioannis Ventoulis, Styliani Vakrou, Miguel Hernandez Pampaloni, Stefan L Zimmerman, Ines Valenta, Thomas H Schindler, Theodore P Abraham, M Roselle Abraham
BACKGROUND: Coronary microvascular dysfunction (CMD) and hypertension (HTN) occur frequently in hypertrophic cardiomyopathy (HCM), but whether blood pressure (BP) influences CMD and outcomes is unknown. OBJECTIVE: The purpose of this study was to test the hypothesis that HTN is associated with worse CMD and outcomes. METHODS: This retrospective study included 690 HCM patients. All patients underwent cardiac magnetic resonance imaging, echocardiography, and rhythm monitoring; 127 patients also underwent rest/vasodilator stress 13 NH3 positron emission tomography myocardial perfusion imaging...
September 2023: Heart rhythm O2
https://read.qxmd.com/read/37694615/the-impact-of-age-on-ablation-outcomes-in-af-mediated-cardiomyopathy
#20
JOURNAL ARTICLE
Louise Segan, David Chieng, Hariharan Sugumar, Aleksandr Voskoboinik, Liang-Han Ling, Ben Costello, Sonia Azzopardi, Ziporah Nderitu, Ramanathan Parameswaran, John Amerena, Alex J McLellan, Geoffrey Lee, Joseph Morton, Stephen Joseph, Michael Wong, Andrew Taylor, Jonathan M Kalman, Peter M Kistler, Sandeep Prabhu
INTRODUCTION: The absence of ventricular scar in patients with atrial fibrillation (AF) and systolic heart failure (HF) predicts left ventricular (LV) recovery following AF ablation. It is unknown whether age impacts the degree of LV recovery, reverse remodeling, or AF recurrence following catheter ablation (CA) among this population. OBJECTIVES: To evaluate the impact of age on LV recovery and AF recurrence in a population with AF and systolic HF without fibrosis (termed AF-mediated cardiomyopathy) following CA...
September 11, 2023: Journal of Cardiovascular Electrophysiology
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