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The Role of Electrocardiogram DETERMINE Score in Prediction of Coronary Artery Disease Severity

World Journal of Cardiovascular Diseases 2024年第9期14卷 567-580页

作者： Ismail N. El-Sokkary Essam Ahmed Khalil mohammed wael badawi Ibrahim K. Gamil Shousha Abdalla A. Elsebaey Mohamed Kamal Rehan Mahmoud Ibrahim Elshamy Yasser Ahmed Sadek Department of Cardiovascular & Thoracic Surgery Faculty of Medicine Al-Azhar University Cairo Egypt Department of Cardiology Al-Azhar University Cairo Egypt Department of Internal Medicine Beni-Sueif University Beni Suef Egypt Department of Radiology Al-Azhar University Cairo Egypt Department of Cardiology Helwan University Cairo Egypt

Background: A major cause of mortality and disability on a global scale is myocardial infarction (MI). These days, the most reliable way to detect and measure MI is via cardiovascular magnetic resonance imaging (CMR). Aims and Objectives: To evaluate the effectiveness of the Electrocardiogram DETERMINE Score in predicting the severity of coronary artery disease (CAD) in patients who have experienced an Acute Myocardial Infarction (AMI) & to assess improvements in left ventricular function at 6 months following coronary artery bypass grafting (CABG). Subjects and Methods: This Observational cohort study was done at the Cardiology and Radiology department and cardiac surgery department, Al-Azhar university hospitals and Helwan University hospital. The study involved 700 cases who patients diagnosed with Acute Myocardial Infarction and fulfilled specific criteria for selection. Result: There was highly statistically significant relation between Myocardial infarction size and ECG Marker Score as mean infarct size elevated When the number of ECG markers increased. There was a highly statistically significant relation between myocardial infarct segments, myocardial infarction size and improvement of cardiac function 6 months post-CABG. Conclusion: The study found that larger myocardial infarctions corresponded with higher DETERMINE Scores. It concluded that an ECG-based score better estimates infarct size than LVEF alone. Additionally, there was a significant statistical correlation between the size and segmentation of myocardial infarction and better cardiac function six months after CABG.

关键词： Electrocardiogram DETERMINE Score Coronary Artery Disease Outcome Acute Myocardial Infarction Coronary Artery Bypass Grafting

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A Comparative Analysis on Surgical Outcomes and Complications of Endoscopic and Open Vein Harvesting Techniques

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Open Journal of Thoracic Surgery 2024年第2期14卷 29-39页

作者： mohammed Fawzy Eltaweel Ismail N. El-Sokkary Ahmed Alherazi Mohamed wael badawi mohammed G. Abdellatif Bahaa A. Elkhonezy Ibrahim K. Gamil Haytham Mohamed Abd El Moaty Sarra Sadmi Mahmoud Khalil Department of Cardiothoracic Surgery Faculty of Medicine Menoufia University Shibin El Kom Egypt Department of Cardiovascular & Thoracic Surgery Faculty of Medicine Al-Azhar University Cairo Egypt Department of Cardiothoracic Surgery Faculty of Medicine Alexandria University Alexandria Egypt Faculty of Medicine University of Algiers Algiers Algeria Department of Cardiac Surgery Sabah Al-Ahmed Cardiac Center Al-Amiri Hospital Kuwait City Kuwait

Objective: The great saphenous vein (GSV) is commonly used as a conduit for grafting during CABG surgery, and open GSV harvesting (OVH), commonly used with long incision to expose the vein. However, endoscopic vein harvesting (EVH) is an alternative approach, utilizing specialized instruments and small incisions to harvest the vein. Methods: A retrospective analysis was conducted on a cohort of patients who underwent Coronary artery bypass graft (CABG) requiring great saphenous vein (GSV) harvesting which was done by EVH or OVH procedures. Demographic variables, including age and gender, were assessed for both groups. Intraoperative variables such as the number of grafts, cardiopulmonary bypass time, X clamp time, and type of procedure were analyzed. Postoperative variables, including infection and bleeding rates, were also evaluated. Results: The study included 30 patients each undergoing Coronary artery bypass graft (CABG) with need of great saphenous vein harvesting which was done by EVH and OVH. Demographic variables were well-matched between the two groups in terms of age, while a significant difference in gender distribution was observed. Obesity and smoking were more prevalent in the OVH group, and EVH was associated with a higher mean number of grafts compared to OVH. Conversion to an open technique occurred in a portion of the EVH cases, and infection rates did not significantly differ between the EVH and OVH groups. However, the incidence of postoperative bleeding was significantly higher in the EVH group. Conclusion: This study provides valuable insights into the demographic, intraoperative, and postoperative variables associated with EVH and OVH techniques. EVH demonstrated advantages in terms of reduced infection rates compared to OVH. However, the higher incidence of postoperative bleeding associated with EVH raises concerns about potential risks.

关键词： Endoscopic Vein Harvesting (EVH) Open Vein Harvesting (OVH) Coronary Artery Bypass Grafting (CABG) Great Saphenous Vein (GSV) Surgical Outcomes

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Approximate Solution of the Kuramoto-Shivashinsky Equation on an Unbounded Domain

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Chinese Annals of Mathematics,Series B 2018年第1期39卷 145-162页

作者： wael W.mohammed Department of Mathematics Faculty of ScienceMansoura University Department of Mathematics Faculty of ScienceHail University

The main goal of this paper is to approximate the Kuramoto-Shivashinsky(K-S for short) equation on an unbounded domain near a change of bifurcation,where a band of dominant pattern is changing *** leads to a slow modulation of the dominant *** we consider PDEs with quadratic nonlinearities and derive rigorously the modulation equation,which is called the Ginzburg-Landau(G-L for short) equation,for the amplitudes of the dominating modes.

关键词： Multi-scale analysis Modulation equation Kuramoto-Shivashinsky equation Ginzburg-Landau equation

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Two-Point Resistance on the Centered-Triangular Lattice

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Chinese Physics Letters 2018年第2期35卷 6-10页

作者： M.Q.Owaidat A.A.Al-badawi J.H.Asad mohammed Al-Twiessi Department of Physics Al-Hussein Bin Talal University Department of Physics Faculty of SciencesTaibah University Department of Physics Faculty of Arts and SciencesPalestine Technical University

The resistance between any two lattice points in an infinite, centered-triangular lattice of equal resistors is determined using the lattice Green function method. It is shown that the two-point resistance on the centered-triangular lattice is expressed in terms of the resistance of a triangular lattice. Some exact values for the resistance near the origin of the lattice are presented. For large separation between lattice points the asymptotic forms of the resistance are calculated.

关键词： Two-Point Resistance on the Centered-Triangular Lattice

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Changes in corneal biomechanics and intraocular pressure following Femto-LASIK using Goldman applanation tonometry and ocular response analyzer

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International Journal of Ophthalmology(English edition) 2020年第5期13卷 782-787页

作者： Ahmed Yassin Hemida Omar M Said Asser A.E.Abdel-Meguid mohammed Iqbal Amani E badawi Department of Ophthalmology Fayoum Ophthalmic HospitalFayoum 63514Egypt Department of Ophthalmology Faculty of MedicineFayoum UniversityFayoum 63514Egypt Department of Ophthalmology Faculty of MedicineCairo UniversityCairo 11562Egypt Department of Ophthalmology Faculty of MedicineSohag UniversitySohag 8242Egypt Department of Ophthalmology Faculty of MedicineMansoura UniversityMansoura 35516Egypt

AIM:To compare intraocular pressure(IOP)measurements before and after laser in situ keratomileusis(LASIK)with a femtosecond laser for flap creation using ocular response analyzer(ORA)and Goldmann applanation tonometry,and to identify factors that may influence the preoperative and postoperative ***:A prospective study conducted on myopic patients who underwent LASIK using a femtosecond laser for flap *** patients were evaluated preoperatively,6 wk and 3 mo postoperatively for manifest refraction(MR),keratometric(K)readings and central corneal thickness(CCT)using a scheimpflug-based *** resistance factor(CRF),corneal hysteresis(CH),Goldmann correlated IOP(IOPg)and corneal compensated IOP(IOPcc)were measured using ORA besides IOP assessment by Goldman applanation tonometry(GAT).RESULTS:There was a statistically significant decrease in measures of IOPg by 3.35±0.83 mm Hg,followed by GAT which decreased by 2.2±0.44 mm Hg,and the least affected by operation was IOPcc which decreased only by 0.87±0.1 mm Hg after 6 *** 3 mo follow up there was a statistically significant decrease in IOPcc which decreased only by 0.76±0.4 mm Hg,followed by IOP GAT by 1.6±0.5 mm Hg,and the most affected by operation was IOPg which decreased by 2.3±0.3 mm ***,there was a statistically significant decrease in CH and CRF after 6 wk and 3 *** 3 mo,the preoperative MR and preoperative GAT were prominent significant predictors of the postoperative GAT *** prediction equation was ***:IOP measurements and corneal biomechanical factors reduce significantly after LASIK with a femtosecond laser for flap *** IOPcc values are less influenced by changes in corneal properties than IOPg and GAT,indicating that IOPcc may provide the most reliable measurement of IOP after this procedure.

关键词： intraocular pressure laser in situ keratomileusis femtosecond laser ocular response analyzer corneal biomechanics myopia

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A Comparative Analysis on Surgical Outcomes and Complications of Endoscopic and Open Vein Harvesting Techniques

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Open Journal of Thoracic Surgery（胸外科期刊） 2024年第2期 29页

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Efficient Computer Aided Diagnosis System for Hepatic Tumors Using Computed Tomography Scans

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Computers, Materials & Continua 2022年第6期71卷 4871-4894页

作者： Yasmeen Al-Saeed wael A.Gab-Allah Hassan Soliman Maysoon F.Abulkhair Wafaa M.Shalash mohammed Elmogy Faculty of Computers and Information Mansoura UniversityMansoura35516Egypt Faculty of Computers&Artificial Intelligence South Valley UniversityHurghada84511Egypt Faculty of Computing and Information Technology King Abdulaziz UniversityJeddah21589Saudi Arabia Faculty of Computers and Artificial Intelligence Benha UniversityBanha13511Egypt

One of the leading causes of mortality worldwide is liver *** earlier the detection of hepatic tumors,the lower the mortality *** paper introduces a computer-aided diagnosis system to extract hepatic tumors from computed tomography scans and classify them into malignant or benign *** hepatic tumors from computed tomography scans is considered a challenging task due to the fuzziness in the liver pixel range,intensity values overlap between the liver and neighboring organs,high noise from computed tomography scanner,and large variance in tumors *** proposed method consists of three main stages;liver segmentation using Fast Generalized Fuzzy C-Means,tumor segmentation using dynamic thresholding,and the tumor’s classification into malignant/benign using support vector machines *** performance of the proposed system was evaluated using three liver benchmark datasets,which are MICCAI-Sliver07,LiTS17,and *** proposed computer adided diagnosis system achieved an average accuracy of 96.75%,sensetivity of 96.38%,specificity of 95.20%and Dice similarity coefficient of 95.13%.

关键词： Liver tumor hepatic tumors diagnosis CT scans analysis liver segmentation tumor segmentation features extraction tumors classification FGFCM CAD system

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Optimization Analysis of Sustainable Solar Power System for Mobile Communication Systems

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Computers, Materials & Continua 2022年第5期71卷 3243-3255页

作者： mohammed H.Alsharif Raju Kannadasan Amir Y.Hassan wael Z.Tawfik Mun-Kyeom Kim Muhammad Asghar Khan Ahmad A.A.Solyman Department of Electrical Engineering College of Electronics and Information EngineeringSejong University209 Neungdong-roGwangjin-guSeoul05006Korea Department of Electrical and Electronics Engineering Sri Venkateswara College of EngineeringSriprumbudurChennai602117India Department of Power Electronics and Energy Conversion Electronics Research InstituteGiza12622Egypt Department of Physics Faculty of ScienceBeni-Suef UniversityBeni-Suef62511Egypt Department of Energy System Engineering Chung-Ang University84 Heukseok-roDongjak-guSeoul156-756Korea Department of Electrical Engineering Hamdard University Islamabad44000Pakistan Department of Electrical and Electronics Engineering Istanbul Gelisim UniversityAvcılar34310Turkey

Cellular mobile technology has witnessed tremendous growth in recent *** of the challenges facing the operators to extend the coverage of the networks to meet the rising demand for cellular mobile services is the power sources used to supply cellular towers with energy,especially in ***,switch from the conventional sources of energy to a greener and sustainable power model became a target of the academic and industrial sectors in many fields;one of these important fields is the telecommunication ***,this study aims to find the optimum sizing and technoeconomic investigation of a solar photovoltaic scheme to deploy cellular mobile technology infrastructure cleanly and *** optimal solarpowered system is designed by employing the energy-balance procedures of the HOMER software *** problem objective is considered in terms of cost,but the energy system is constrained to meet the power demand *** simulations were performed to determine the optimum sizing,performance and monetary cost of the power system,using long-term meteorological datasets for a case study site with defined longitude(31◦25E)and latitude(30◦06N).From the observed results,the total net present cost(NPC)of the proposed system is$28,***,these outcomes can provide profound economic,technical,and ecological benefits to cellular *** also ensures a sizeable reduction in greenhouse gas that supports sustainable green wireless network(WN)deployment in remote areas.

关键词： Wireless networks green wireless networks green communications sustainability OPEX

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Surgical resection or radiofrequency ablation in the management of hepatocellular carcinoma: single center experience

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Hepatoma Research 2016年第1期2卷 92-97页

作者： wael Mansy Morsi mohammed Sameh Saber Department of General Surgery Faculty of MedicineZagazig UniversityZagazig 44519Egypt Department of Radiology Faculty of MedicineZagazig UniversityZagazig 44519Egypt

Aim:The aim of this study is to prove or disprove the superiority of surgical resections over radiofrequency ablation(RFA)with respect to efficacy and ***:The study was conducted in Zagazig University Hospitals,which included 40 patients with hepatocellular carcinoma(HCC)during the period from November 2011 to December 2014,using either liver resection or ***:Hepatic resection was done in 20 patients(13 males,7 females).Interventional RFA was done in 20 patients(12 males,8 females).There was no in-hospital mortality after ***-and two-year survival rates were 85% and 70% *** was no in-hospital mortality after ***-and two-year survival rates were 80% and 65% ***:Surgical resection is preferred over RFA in HCC-liver cirrhosis Child A patients with tumor sizes≥3 ***-liver cirrhosis Child A patients with masses<3 cm have almost the same results with both surgery and *** in special cases such as central position lesions,RFA is preferred over *** the decision for management may be changed according to patients *** resection 1-and 2-year survival rates were better than those treated with RFA.

关键词： Hepatocellular carcinoma liver resection radiofrequency ablation

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Skin Cancer Classification Using Transfer Learning by VGG16 Architecture (Case Study on Kaggle Dataset)

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Journal of Intelligent Learning Systems and Applications 2023年第3期15卷 67-75页

作者： Adam M. Ibrahim mohammed Elbasheir Somia badawi Ashraf mohammed Amir F. mohammed Alalmin Department of Computer Science Sudan Technical University Khartoum Sudan Faculty of Computer Science and Information Technology Alzaiem Alazhri University Khartoum Sudan Applied College Najran University Najran Saudi Arabia Faculty of Computer Science and Information Technology Omdurman Islamic University Omdurman Sudan Department of Emergency Medicine King Abdullah Medical City Makkah Saudi Arabia

Skin cancer is a serious and potentially life-threatening disease that affects millions of people worldwide. Early detection and accurate diagnosis are critical for successful treatment and improved patient outcomes. In recent years, deep learning has emerged as a powerful tool for medical image analysis, including the diagnosis of skin cancer. The importance of using deep learning in diagnosing skin cancer lies in its ability to analyze large amounts of data quickly and accurately. This can help doctors make more informed decisions about patient care and improve overall outcomes. Additionally, deep learning models can be trained to recognize subtle patterns and features that may not be visible to the human eye, leading to earlier detection and more effective treatment. The pre-trained Visual Geometry Group 16 (VGG16) architecture has been used in this study to classification of skin cancer images, and the images have been converted into other color scales, there are named: 1) Hue Saturation Value (HSV), 2) YCbCr, 3) Grayscale for evaluation. Results show that the dataset created with RGB and YCbCr images in field condition was promising with a classification accuracy of 84.242%. The dataset has also been evaluated with other popular architectures and compared. The performance of VGG16 with images of each color scale is analyzed. In addition, feature parameters have been extracted from the different layers. The extracted layers were felt with the VGG16 to evaluate the ability of the feature parameters in classifying the disease.

关键词： Skin Cancer Classification VGG16 Transfer Learning Deep Learning

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