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Search Results (19)
  • Open Access

    ARTICLE

    High Prevalence of Anatomical Variations and Anomalies of the Coronary Arteries Detected by CT Angiography in Symptomatic Patients

    Ghazi A. Alshumrani*

    Congenital Heart Disease, Vol.19, No.2, pp. 197-206, 2024, DOI:10.32604/chd.2024.049401

    Abstract Objective: Coronary artery anatomical variations and anomalies are an important topic due to their potential clinical manifestations. This study aims to investigate the prevalence of coronary artery anatomical variations and anomalies in symptomatic patients with coronary computed tomography angiography (CCTA). Methods: This is a retrospective study that included all symptomatic patients who had CCTA in a tertiary care hospital in Saudi Arabia during a period of seven years. Results: The total number of included patients was 507 (60% males) with a mean age of 57.4 years. Approximately 41% had luminal stenoses, averaging 49.7%. The total number of patients with coronary… More >

  • Open Access

    ARTICLE

    “I Dread the Heart Surgery but it Keeps My Child Alive”—Experiences of Parents of Children with Right Ventricular Outflow Tract Anomalies during the Assessment for Cardiac Reoperation

    Birgitta Svensson1,2,*, Petru Liuba1,2, Anne Wennick3, Malin Berghammer4,5

    Congenital Heart Disease, Vol.18, No.3, pp. 349-359, 2023, DOI:10.32604/chd.2023.028391

    Abstract Background: Parents of children with complex right ventricular outflow tract (RVOT) anomalies are confronted with their child’s need for heart surgery early in life and repeated reoperations later on. Preoperative assessment needs to be performed whenever an indication for reoperation is suspected. The aim was to illuminate the experiences of parents of children diagnosed with RVOT anomalies, in particular, how they experience their child’s heart disease and everyday life during the assessment and after the decision on whether to perform a reoperation. Method: Individual interviews (n = 27) were conducted with nine parents on three occasions between 2014 and 2016 and analyzed… More >

  • Open Access

    ARTICLE

    Anomaly Detection and Classification in Streaming PMU Data in Smart Grids

    A. L. Amutha1, R. Annie Uthra1,*, J. Preetha Roselyn2, R. Golda Brunet3

    Computer Systems Science and Engineering, Vol.46, No.3, pp. 3387-3401, 2023, DOI:10.32604/csse.2023.029904

    Abstract The invention of Phasor Measurement Units (PMUs) produce synchronized phasor measurements with high resolution real time monitoring and control of power system in smart grids that make possible. PMUs are used in transmitting data to Phasor Data Concentrators (PDC) placed in control centers for monitoring purpose. A primary concern of system operators in control centers is maintaining safe and efficient operation of the power grid. This can be achieved by continuous monitoring of the PMU data that contains both normal and abnormal data. The normal data indicates the normal behavior of the grid whereas the abnormal data indicates fault or… More >

  • Open Access

    ARTICLE

    Classifying Cardiac Anomalies in Right and Left Isomerism: Concordant and Discordant Patterns

    Lilia Oreto1,*, Giuseppe Mandraffino2, Paolo Ciliberti3, Teresa P. Santangelo4, Placido Romeo5, Antonio Celona5, Placido Gitto1, Lorenzo Galletti3, Fiore S. Iorio3, Alfredo Di Pino1, Aurelio Secinaro4, Paolo Guccione3, Robert H. Anderson6, Salvatore Agati1

    Congenital Heart Disease, Vol.18, No.1, pp. 97-111, 2023, DOI:10.32604/chd.2022.023619

    Abstract Aims: Evidence is emerging that, in the setting of isomerism, the atrial and bronchial arrangement are not always concordant, nor are these patterns always harmonious with the arrangement of the abdominal organs. We aimed to evaluate the concordance between these features in a cohort of patients with cardiac malformations in the setting of known isomerism, seeking to determine whether it was feasible to assess complexity on this basis, in this regard taking note of the potential value of bronchial as opposed to appendage morphology. Methods and Results: We studied 78 patients known to have isomerism of the bronchuses, 43 with… More > Graphic Abstract

    Classifying Cardiac Anomalies in Right and Left Isomerism: Concordant and Discordant Patterns

  • Open Access

    ARTICLE

    Robust ACO-Based Landmark Matching and Maxillofacial Anomalies Classification

    Dalel Ben Ismail1, Hela Elmannai2,*, Souham Meshoul2, Mohamed Saber Naceur1

    Intelligent Automation & Soft Computing, Vol.35, No.2, pp. 2219-2236, 2023, DOI:10.32604/iasc.2023.028944

    Abstract Imagery assessment is an efficient method for detecting craniofacial anomalies. A cephalometric landmark matching approach may help in orthodontic diagnosis, craniofacial growth assessment and treatment planning. Automatic landmark matching and anomalies detection helps face the manual labelling limitations and optimize preoperative planning of maxillofacial surgery. The aim of this study was to develop an accurate Cephalometric Landmark Matching method as well as an automatic system for anatomical anomalies classification. First, the Active Appearance Model (AAM) was used for the matching process. This process was achieved by the Ant Colony Optimization (ACO) algorithm enriched with proximity information. Then, the maxillofacial anomalies… More >

  • Open Access

    ARTICLE

    Metaheuristics with Machine Learning Enabled Information Security on Cloud Environment

    Haya Mesfer Alshahrani1, Faisal S. Alsubaei2, Taiseer Abdalla Elfadil Eisa3, Mohamed K. Nour4, Manar Ahmed Hamza5,*, Abdelwahed Motwakel5, Abu Sarwar Zamani5, Ishfaq Yaseen5

    CMC-Computers, Materials & Continua, Vol.73, No.1, pp. 1557-1570, 2022, DOI:10.32604/cmc.2022.027135

    Abstract The increasing quantity of sensitive and personal data being gathered by data controllers has raised the security needs in the cloud environment. Cloud computing (CC) is used for storing as well as processing data. Therefore, security becomes important as the CC handles massive quantity of outsourced, and unprotected sensitive data for public access. This study introduces a novel chaotic chimp optimization with machine learning enabled information security (CCOML-IS) technique on cloud environment. The proposed CCOML-IS technique aims to accomplish maximum security in the CC environment by the identification of intrusions or anomalies in the network. The proposed CCOML-IS technique primarily… More >

  • Open Access

    ARTICLE

    Coronary Artery Anomalies in D-Transposition of the Great Artery Following Arterial Switch Operation

    Thita Pacharapakornpong, Jarupim Soongswang*, Chodchanok Vijarnsorn, Paweena Chungsomprasong, Kritvikrom Durongpisitkul, Prakul Chanthong, Supaluck Kanjanauthai

    Congenital Heart Disease, Vol.17, No.3, pp. 297-311, 2022, DOI:10.32604/chd.2022.019279

    Abstract Background: The survival rate of patients following arterial switch operation (ASO) exceeds 95%, but coronary artery anomalies (CAA) contribute to a 2% incidence of sudden cardiac arrest later in life. Therefore, we aimed to assess abnormal findings of coronary arteries in post-ASO patients. Methods: Coronary computed tomography angiography (CCTA) is performed on post-ASO patients who meet institutional criteria. Intraoperative findings of coronary artery patterns were retrospectively reviewed and categorized using the Leiden classification system. Coronary artery anomalies were detected by CCTA and associations with coronary artery compromise were explored. Results: Forty-three patients who had CCTA with a median age of… More >

  • Open Access

    ARTICLE

    Automated Learning of ECG Streaming Data Through Machine Learning Internet of Things

    Mwaffaq Abu-Alhaija, Nidal M. Turab*

    Intelligent Automation & Soft Computing, Vol.32, No.1, pp. 45-53, 2022, DOI:10.32604/iasc.2022.021426

    Abstract Applying machine learning techniques on Internet of Things (IoT) data streams will help achieve better understanding, predict future perceptions, and make crucial decisions based on those analytics. The collaboration between IoT, Big Data and machine learning can be found in different domains such as Health care, Smart cities, and Telecommunications. The aim of this paper is to develop a method for automated learning of electrocardiogram (ECG) streaming data to detect any heart beat anomalies. A promising solution is to use medical sensors that transfer vital signs to medical care computer systems, combined with machine learning, such that clinicians can get… More >

  • Open Access

    ARTICLE

    Abnormal Coronary Anatomy in Patients with Transposition of the Great Arteries and Atrial Switch: A Predictor of Serious Cardiac Adverse Events?

    Yoann Perreux1, Marie Alexandre Chaix2, Anna Kamp3, François-Pierre Mongeon2, Magali Pham2, Loïc Boussel1, Roland Henaine1, Annie Dore2, Blandine Mondésert2, Sylvie Di-Filippo1, Paul Khairy2, Francis Bessiere1,*

    Congenital Heart Disease, Vol.15, No.6, pp. 473-482, 2020, DOI:10.32604/CHD.2020.013032

    Abstract Sudden cardiac death and heart failure are well known long-term complications after atrial switch for D-transposition of the great arteries (D-TGA). Right systemic ventricular dysfunction is common and myocardial ischemia has been implicated as a putative mechanism for sudden death, with coronary anomalies prevalent in 30% of cases. We sought to assess an association between adverse events and coronary anomalies in patients with D-TGA and atrial switch surgery. An observational study was conducted in 3 tertiary centers (Montreal Heart Institute, Canada, Nationwide Children’s hospital, Chicago, USA and Hopital cardiologique Louis Pradel de Lyon, France). Adults with D-TGA and atrial switch… More >

  • Open Access

    CASE REPORT

    Positional Hypoxemia from Persistent Left Superior Vena Cava Draining to the Left Atrium

    Naveed Rabbani1,*, Sarah Hofman DeYoung2, Ronald L. Gibson2, Jeffrey Conwell1, Jason F. Deen1

    Congenital Heart Disease, Vol.15, No.4, pp. 197-201, 2020, DOI:10.32604/CHD.2020.011527

    Abstract Persistent left superior vena cava (PLSVC) is a relatively common congenital venous anomaly that typically drains into the coronary sinus without hemodynamic significance. Rarely a PLSVC drains directly into the left atrium, forming a right-to-left shunt that can result in hypoxemia and potential paradoxical embolism. We present the case of a 2-year-old medically complex child on chronic mechanical ventilation with eventual diagnosis of episodic hypoxemia due to a PLSVC draining into the left atrium with position-dependent venous flow. The lesion was identified with contrast echocardiography and cardiac MRI. Subsequent occlusion with a vascular plug resulted in resolution of the child’s… More >

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