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  • Open Access


    A Robust Tuned Random Forest Classifier Using Randomized Grid Search to Predict Coronary Artery Diseases

    Sameh Abd El-Ghany1,2, A. A. Abd El-Aziz1,3,*

    CMC-Computers, Materials & Continua, Vol.75, No.2, pp. 4633-4648, 2023, DOI:10.32604/cmc.2023.035779

    Abstract Coronary artery disease (CAD) is one of the most authentic cardiovascular afflictions because it is an uncommonly overwhelming heart issue. The breakdown of coronary cardiovascular disease is one of the principal sources of death all over the world. Cardiovascular deterioration is a challenge, especially in youthful and rural countries where there is an absence of human-trained professionals. Since heart diseases happen without apparent signs, high-level detection is desirable. This paper proposed a robust and tuned random forest model using the randomized grid search technique to predict CAD. The proposed framework increases the ability of CAD… More >

  • Open Access


    Vessels Segmentation in Angiograms Using Convolutional Neural Network: A Deep Learning Based Approach

    Sanjiban Sekhar Roy1, Ching-Hsien Hsu2,3,4,*, Akash Samaran1, Ranjan Goyal1, Arindam Pande5, Valentina E. Balas6

    CMES-Computer Modeling in Engineering & Sciences, Vol.136, No.1, pp. 241-255, 2023, DOI:10.32604/cmes.2023.019644

    Abstract Coronary artery disease (CAD) has become a significant cause of heart attack, especially among those 40 years old or younger. There is a need to develop new technologies and methods to deal with this disease. Many researchers have proposed image processing-based solutions for CAD diagnosis, but achieving highly accurate results for angiogram segmentation is still a challenge. Several different types of angiograms are adopted for CAD diagnosis. This paper proposes an approach for image segmentation using Convolution Neural Networks (CNN) for diagnosing coronary artery disease to achieve state-of-the-art results. We have collected the 2D X-ray… More >

  • Open Access


    Transfer Learning for Disease Diagnosis from Myocardial Perfusion SPECT Imaging

    Phung Nhu Hai1, Nguyen Chi Thanh1,*, Nguyen Thanh Trung2, Tran Trung Kien1

    CMC-Computers, Materials & Continua, Vol.73, No.3, pp. 5925-5941, 2022, DOI:10.32604/cmc.2022.031027

    Abstract Coronary artery disease (CAD) is one of the most common pathological conditions and the major global cause of death. Myocardial perfusion imaging (MPI) using single-photon emission computed tomography (SPECT) is a non-invasive method and plays an essential role in diagnosing CAD. However, there is currently a shortage of doctors who can diagnose using SPECT-MPI in developing countries, especially Vietnam. Research on deploying machine learning and deep learning in supporting CAD diagnosis has been noticed for a long time. However, these methods require a large dataset and are therefore time-consuming and labor-intensive. This study aims to… More >

  • Open Access


    Coronary Artery Complications after Right Ventricular Outflow Tract Reconstruction Surgery

    Hye Won Kwon1,2, Mi Kyoung Song1, Sang Yun Lee1, Gi Beom Kim1, Sungkyu Cho2, Jae Gun Kwak2, Woong-Han Kim2, Whal Lee3, Eun Jung Bae1,*

    Congenital Heart Disease, Vol.17, No.3, pp. 281-295, 2022, DOI:10.32604/chd.2022.019065

    Abstract Background: Mechanisms and clinical manifestations of coronary artery complications after right ventricular outflow tract reconstruction surgery are not well known. Methods: Patients who had coronary artery complications after pulmonary valve replacement or the Rastelli procedure at a single tertiary centre were retrospectively analysed. Results: Coronary artery complications were identified in 20 patients who underwent right ventricular outflow tract reconstruction surgery. The median age at diagnosis of coronary artery complication was 21 years (interquartile range: 13–25 years). Mechanisms of coronary artery complications were compression by adjacent materials in 12 patients, dynamic compression of intramural course of coronary artery… More >

  • Open Access


    Computer Aided Coronary Atherosclerosis Plaque Detection and Classification

    S. Deivanayagi1,*, P. S. Periasamy2

    Intelligent Automation & Soft Computing, Vol.34, No.1, pp. 639-653, 2022, DOI:10.32604/iasc.2022.025632

    Abstract Coronary artery disease (CAD) remains a major reason for increased mortality over the globe, comprising myocardial infarction and ischemic cardiomyopathy. The CAD is highly linked to coronary stenosis owing to the encumbrance of atherosclerotic plaques. Particularly, diversified atherosclerotic plaques are highly responsible for major cardiac adverse events over the calcified and non-calcified plaques. There, the recognition and classification of atherosclerotic plaques play a vital role to prevent and intervene in CAD. The process of detecting various class labels of the atherosclerotic plaques is significant to identify the disease at the earlier stages. Since several automated… More >

  • Open Access


    Combined Surgical Treatment of Atherosclerotic Coronary Artery Disease and Moderate Aortic Valve Stenosis in Patient with Concomitant Lipton’s R-III Type of Single Coronary Artery Anomaly

    Milica Karadzic Kocica1, Hristina Ugrinovic1, Dejan Lazovic2, Nemanja Karamarkovic2, Milos Grujic2, Borivoje Lukic3, Oliver Radmili3, Vladimir Cvetic3, Mladen Kocica2,*

    Congenital Heart Disease, Vol.16, No.6, pp. 647-653, 2021, DOI:10.32604/CHD.2021.016923

    Abstract A single coronary artery is a very rare condition, commonly associated with other congenital anomalies. It could be generally considered as neither benign nor malignant form of congenital coronary artery anomalies since its pathophysiological and clinical implications grossly depend on different anatomical patterns defined by the site of origin and distribution of the branches. By presenting the patient who underwent successful coronary artery bypass grafting and aortic valve replacement surgery in a presence of isolated single coronary artery, we intend to emphasize natural and procedural risks and distinguish casual from causal in this extremely rare More >

  • Open Access


    Acquired Coronary Artery Disease in Patients with Congenital Heart Disease: Issues in Diagnosis and Management

    Sotiria C. Apostolopoulou1,*, Stella Brili2, Eftihia Sbarouni3, Dimitris Tousoulis2, Konstantinos Toutouzas2

    Congenital Heart Disease, Vol.15, No.5, pp. 369-375, 2020, DOI:10.32604/CHD.2020.012092

    Abstract Objective: Acquired coronary artery disease, initially thought to rarely affect survivors of congenital heart disease, is increasingly recognized in this population, as these patients grow in age and numbers in the recent era. This study reports our experience with coronary artery disease in adults with congenital heart disease and discusses treatment issues and the existing literature. Methods: Retrospective review of all charts of adults with congenital heart disease and acquired coronary artery disease was performed. Patients’ clinical characteristics, diagnosis, risk factors, noninvasive and invasive imaging and management data were recorded. Results: Coronary artery disease was diagnosed at… More >

  • Open Access


    Pharmacologic stress cardiovascular magnetic resonance in the pediatric population: A review of the literature, proposed protocol, and two examples in patients with Kawasaki disease

    Munes Fares1, Paul J. Critser2, Maria J. Arruda1, Carolyn M. Wilhelm1, Mantosh S. Rattan3, Sean M. Lang2,4, Tarek Alsaied2,4

    Congenital Heart Disease, Vol.14, No.6, pp. 1166-1175, 2019, DOI:10.1111/chd.12840

    Abstract Pharmacologic stress cardiovascular magnetic resonance (PSCMR) is a wellestablished and reliable diagnostic tool for evaluation of coronary artery disease in the adult population. Stress imaging overall and PSCMR in particular is less utilized in the pediatric population with limited reported data. In this review, we highlight the potential use of PSCMR in specific pediatric cohorts with congenital and acquired heart disease, and we review the reported experience. A suggested protocol is presented in addition to two case examples of patients with Kawasaki disease where PSCMR aided decision making. More >

  • Open Access


    Coronary artery disease screening in adults with congenital heart disease prior to cardiac surgery

    Bradley Johnson1,2, Matthew Buelow1,2, Michael Earing1,2, Scott Cohen1,2, Peter Bartz1,2, Salil Ginde1,2

    Congenital Heart Disease, Vol.14, No.6, pp. 895-900, 2019, DOI:10.1111/chd.12839

    Abstract Objective: As adults with congenital heart disease (CHD) grow older, preoperative screening for coronary artery disease (CAD) may be indicated prior to CHD surgery. Data regarding the indications for preoperative CAD screening in this population are limited. Current practice is to follow guidelines for patients with valvular heart dis‐ ease; however, the risk for CAD in certain congenital heart diagnoses may be higher than the general population. This study aimed to assess the results of preoperative CAD screening in patients prior to CHD surgery.
    Design: Retrospective study.
    Setting: Single tertiary center.
    Patients: Patients ≥35 years that had CHD surgery… More >

  • Open Access


    Coronary artery disease in adults with tetralogy of Fallot

    Alexander C. Egbe, Sindhura Ananthaneni, Raja Jadav, Srikanth Kothapalli, Charanjit S. Rihal, Muhammad Masood, Mounika Angirekula, Maria Najam, Numra Bajwa, Karim Tarek, Jessey Matthew, Heidi M. Connolly

    Congenital Heart Disease, Vol.14, No.3, pp. 491-497, 2019, DOI:10.1111/chd.12782

    Abstract Background: There are limited data about outcomes of coronary artery disease (CAD) in adults with repaired tetralogy of Fallot (TOF). The purpose of this study was to describe the prevalence and treatment of CAD in adults with TOF, and the impact of CAD on long‐term survival.
    Methods: Retrospective review of MACHD database for adults with repaired TOF who underwent aortic root/selective coronary angiogram, 1990‐2017. Patients were categorized into three groups: (1) No CAD defined as normal coronary angiogram; (2) Mild CAD defined as ≤50% stenosis in all vessels; and, (3) Significant CAD defined as >50% stenosis in… More >

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