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CT Profile of Hydrocephalus in Children at the Charles de Gaulle Pediatric Teaching Hospital in Ouagadougou

Open Journal of Radiology 2023年第3期13卷 155-166页

作者： Soré Moussa Zanga Kisito Nagalo Fadiilah Laetitia Nonkané aïscha madina napon Ousséini Diallo Léonie Claudine Lougué/Sorgho Rabiou Cissé Radiology Department Charles de Gaulle Pediatric Teaching Hospital Ouagadougou Burkina Faso Health Sciences Training and Research Unit University Joseph KI-ZERBO Ouagadougou Burkina Faso Radiology Department Yalgado Ouedraogo Teaching Hospital Ouagadougou Burkina Faso

Aim of the Study: The aim is to analyse the epidemiological, clinical and CT aspects of hydrocephalus in children. Method: This was a cross-sectional descriptive study with retrospective collection from 1 June 2021 to 31 December 2022 within the radiology department of Charles De Gaulle Pediatric Teaching Hospital in Ouagadougou, Burkina Faso. The study included the records of patients with hydrocephalus who underwent cerebral computed tomography within this radiology department. Results: Hydrocephalus is due to a disorder of the hydrodynamics of the cerebrospinal fluid causing an increase in the volume allocated to this fluid in the brain and being accompanied by an increase in the pressure of this fluid. Its diagnosis is established by Doppler ultrasound or MRI prenatally, transfontanellar ultrasound in newborns and young children whose fontanel is permeable and by CT or MRI in older children, who can also determine the etiology. MRI remains an imaging technique that is less available and less accessible than CT in developing countries like ours. In Burkina Faso, MRI is only available in two private health facilities. The objective of this study was to describe the epidemiological, clinical and computed tomography aspects of hydrocephalus in children at the Charles de Gaulle pediatric teaching hospital in order to contribute to the diagnostic assessment and better management of this pathology. Over 19 months, 105 cases of hydrocephalus were recorded out of a total population of 115 children, or an average of 6 cases per month. The mean age was 17.52 months, with extremes of 03 days and 13 years, and the sex ratio was 1.38. Macrocrania, convulsions and psychomotor retardation were the main clinical signs, with rates of 49%, 34% and 30% respectively. On cerebral CT scan, hydrocephalus was triventricular (41.90%), tetraventricular (40%), and predominantly non-communicating (60%), with a mean Evans score of 0.53. The aetiologies were malformations in 34.28% of cases,

关键词： Hydrocephalus Malformations Cerebral Tomography

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Melnick Needles Syndrome: Computed Imaging and Management Difficulties

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Open Journal of Radiology 2023年第3期13卷 146-154页

作者： Soré Moussa Zanga Dominique Bicaba Kisito Nagalo Sounkalo Guibou Konané aïscha madina napon Zakari Nikiéma Ousséini Diallo Léonie Claudine Sorgho/Lougué Rabiou Cissé Radiology Department Charles de Gaulle Pediatric Teaching Hospital Ouagadougou Burkina Faso Radiology Department Souro Sanou Teaching Hospital Bobo Dioulasso Burkina Faso Neonatology Department Charles De Gaulle Pediatric Teaching Hospital Ouagadougou Burkina Faso Radiology Department Yalgado Ouedraogo Teaching Hospital Ouagadougou Burkina Faso

Melnick-Needles syndrome is an osteo-dysplasia caused by a mutation of a gene, FLNA, coding for filamine A. It is at the origin of a set of complex congenital malformations, mainly of interest to the members, but also to the cranio-facial region. Melnick-Needles syndrome was first described in 1966 by two Americans John Melnick, a radiologist, and Carl F Needles, a pediatrician. They described cases of families of several generations who had a characteristic severe congenital bone disorder. They thought that human-to-human transmission had occurred in one case. We report a case of Melnick-Needles syndrome which is a pathology with very high mortality especially in a male subject. This was an observational study of a case received in consultation with the pediatric service of the Souro Sanou University Hospital Center in Bobo Dioulasso in Burkina Faso. It was a 3-year-old boy born in a low-term pregnancy without any prenatal consultation, imaging test and prenatal biology performed. The exact pathogenesis of this condition is not established but is linked to a mutation of the Filamine A gene linked to sexual chromosomes X. Pathology is rare, around a hundred cases have been reported worldwide. Its incidence, according to the literature is around 1/100,000. The sex ratio is at 7. The malformations of this acquired embryo-fetopathy are multiple, polymorphic and asymmetrical. The diagnosis of this pathology is suspected by the clinic and established by molecular biology by sequencing the genes responsible for the mutation. However, imagery, in particular the scanner has a major role by its protocol with multi-planar reconstructions and its analysis in double windowing which allow a better description of the malformations of this syndrome. Its management is complex, and multidisciplinary, and the unfortunate prognosis in our context is because of the precarious technical platform. In our case despite the obvious malformations presented by the patient, the parents consult

关键词： Melnick-Needles Syndrome Polymaformation TDM Burkina Faso

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Epidemiological, Radio-Clinical and Histological Correlations of Breast Lesions ACR 3, ACR 4 and ACR 5 in the Ouagadougou’ City

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Open Journal of Radiology 2020年第3期10卷 184-192页

作者： Massara Koné-Sigué aïscha madina napon Soré Moussa Zanga Glwadys Cherlyn Béréhoudougou Kaboré Mathieu Kafando Pakisba Ali Ouédraogo Abel Yomboué Bamouni Léonie Claudine Lougué-Sorgho Department of Radiology Pediatric University Hospital Center (CHUP) Charles De gaulles Ouagadougou Burkina Faso Department of Radiology University Hospital Center (CHU) Yalgado Ouédraogo Ouagadougou Burkina Faso

Objective: To correlate the epidemiological and histological data of breast le-sions ACR 3, ACR 4 and ACR 5 biopsied on ultrasound in the city of Ouaga-dougou. Materials and methods: This was a retrospective study of data for 02 years (2015-2017) in the city of Ouagadougou. With the approval of the Ethics Committee for Health Research, the study focused on the histological results and radiological reports of biopsied lesions. Results: A total of 150 patients files had been collected. Breast lesions classified as ACR 4 were 50%, ACR 3 40% and ACR 5 10%. The risk factors were related to the ACR class. Ultra-sound was performed in all patients. The masses were the most common ele-mentary lesions found in breast imaging. On histology 98 lesions were benign, 16 intermediate lesions and 36 malignant lesions. Fibroids were the most common benign lesions of the ACR 3 and ACR 4 classes. Invasive ductal car-cinoma was the most common histologic type among malignant lesions in all ACR classes. Conclusion: Cancerous lesions are discovered late in our context. The ACR classification must always take into account discriminative ele-ments.

关键词： Breast Cancer ACR Echo-Mammography Burkina Faso

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The experience of land cover change detection by satellite data

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Frontiers of Earth Science 2012年第2期6卷 140-146页

作者： Lev SPIVAK Irina VITKOVSKAYA madina BATYRBAYEVA Alexey TEREKHOV The Institute of Space Research National Centre of Space Research and Technology of the Republic of Kazakhstan Almaty 050010 Kazakhstan

Sigificant dependence from climate and anthropogenic influences characterize ecological systems of Kazakhstan. As result of the geographical location of the republic and ecological situation vegetative degradation sites exist throughout the territory of Kazakhstan. The major process of desertification takes place in the arid and semi-arid areas. To allocate spots of stable degradation of vegetation, the transition zone was first identified. Productivity of vegetation in transfer zone is slightly dependent on climate conditions. Multi-year digital maps of vegetation index were generated with NOAA satellite images. According to the result, the territory of the republic was zoned by means of vegetation productivity criterion. All the arable lands in Kazakhstan are in the risky agriculture zone. Estimation of the productivity of agricultural lands is highly important in the context of risky agriculture, where natural factors, such as wind and water erosion, can significantly change land quality in a relatively short time period. We used an integrated vegetation index to indicate land degradation measures to assess the inter-annual features in the response of vegetation to variations in climate conditions from low- resolution satellite data for all of Kazakhstan. This analysis allowed a better understanding of the spatial and temporal variations of land degradation in the country.

关键词： remote sensing NOAA land cover changes,vegetation indexes

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Contribution of the Medical Imaging in Care of Ambiguous Genitalia

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Open Journal of Radiology 2018年第2期8卷 125-130页

作者： Zanga Sore Moussa Diallo Ousseini Ouattara Boubakar napon Aischa madina Bamouni Yomboue Abel Cisse Rabiou Radiology Department of Charles de Gaulle Teaching Paediatric Hospital Ouagadougou Burkina Faso Radiology Department of Yalgado Ouédraogo Teaching Hospital Ouagadougou Burkina Faso

We report a case of ambiguous genitalia in a 15-year-old patient to demonstrate input of medical imaging in the diagnosis and care of this rare congenital deformation. Disorders of sexual differentiation (DSD) have been defined as congenital conditions in which development of chromosome, gonad, or anatomic sex is atypical and that raise an issue in the sex assignment. In lower socioeconomic countries where antenatal diagnosis is almost non-existent, due to lack of technical facilities, their medical and surgical management is hard. The case which we report was investigated by ultrasonography and genitography, which remains primary indications in our context.

关键词： Ambiguous Genitalia Karyotype Ultrasonography Genitography

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Ultrasound Contribution to the Diagnosis of Emphysematous Cystitis

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Open Journal of Radiology 2015年第3期5卷 170-175页

作者： Kofi-Mensa Savi de Tové madina napon Zakari Nikiema Patricia Yèkpè Olivier Biaou Vicentia Boco Medical Imaging Department Faculty of Medicine University of Parakou Republic of Benin Medical Imaging Unit Charles de Gaulle University Teaching Hospital Ouagadougou Burkina-Faso Medical Imaging Unit Sour&#244 Sanou University Teaching Hospital Bobo-Dioulasso Burkina-Faso Medical Imaging Department Faculty of Health Sciences University of Abomey-Calavi Cotonou Republic of Benin

Emphysematous cystitis is a severe urinary tract infection which threatens patients’ life. Thus, it requires early diagnosis and computed tomography (CT) is the reference medical exam used to address it. However, ultrasound, which is a non-ionizing and very accessible technique, may also contribute to diagnosis. The aim of this study was to illustrate the contribution of ultrasound to the diagnosis of emphysematous cystitis. We report three cases of emphysematous cystitis diagnosed by ultrasound. In all the cases, ultrasound identified basic signs showing presence of gas, including a hyperechoic cystic parietal thickening, repeat echoes and dirty shadow cones of intraluminal focus. Diagnostic confirmation was made in two cases through X-ray and in one case by means of computed tomography. Through simple basic signs, ultrasound directs most usefully towards an emphysematous urinary tract infection. CT enables a more accurate diagnostic work-up of lesions and differential diagnosis with vesico-digestive fistula.

关键词： Emphysematous Cystitis Ultrasound Computed Tomography X-Ray

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Research on Demand Response Strategy in Integrated Energy System

Research on Demand Response Strategy in Integrated Energy Sy...

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作者： Toiymbekova madina 华北电力大学(北京)

学位级别：硕士

The main objective of this research is a demonstration the efficiency of demand response strategy in integrated energy system（IES）.To obtain desired research results,an integrated energy system（combined electricity,heat and gas）for an example of a real agglomeration has been *** options are possible when using the IES to optimize or plan the power supply of one ***,the problem arises of selection the most optimal option for power supply in the existing ***,a mathematical model for choosing an optimal power supply option for a given agglomeration（taking into account existing energy sources,heat,electric and gas networks,level of load consumption,etc.）was *** to this model and the results of calculations,the optimal power supply option was selected using real statistical data of load and price changes in considered energy *** option provides the implementation of distributed generation（DG）*** optimal loading of selected DG units the mathematical model and calculation methodology have been *** model allows optimizing the usage of DG units and minimizing the discounted costs of selected power supply option that makes this option more *** response approach in thesis is considered from developed bi-level optimization problem:maximization of retailer’s profit and minimization of consumers’*** of the demand response strategy on the part of the retailer and the consumer allows to create a more accurate mathematical model that takes into account many uncertainties of the electricity market,as well as to demonstrate the effectiveness of DR from both the consumer and the retailer *** efficiency of demand response strategy is shown on the simulated demand response model and calculated results of real consumer’s load *** on the obtained results,the efficiency of demand response strategy to the optimal developed IES for a given agglomera

关键词：集成能源系统需求响应分布式发电机组燃气网络最佳电源供应

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The Impact of Monetary Policy on the Banks’ Risk-Taking in Russia in the Period 2000-2016

The Impact of Monetary Policy on the Banks’ Risk-Taking in ...

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作者： madina ORYSKHAN 浙江工商大学

学位级别：硕士

在一个经营良好的银行业货币概念框架内,只有通过实施灵活的中央银行货币政策,才能有效地发展现代市场经济。俄联邦中央银行的系统性决定了对货币供应量的管制,从而使其能够控制通货膨胀和经济增长过程的管理,从而影响到国际收支的平衡... 详细信息

在一个经营良好的银行业货币概念框架内,只有通过实施灵活的中央银行货币政策,才能有效地发展现代市场经济。俄联邦中央银行的系统性决定了对货币供应量的管制,从而使其能够控制通货膨胀和经济增长过程的管理,从而影响到国际收支的平衡。在俄现行立法框架内选择国家经济的货币和信贷监管方法和措施方面,CBR拥有最广泛的权力和完全独立性。对于俄罗斯的货币政策,利率和再融资利率是其关键机制。由于这些关键保证金利率的波动,CBR对商业银行的风险承担行为产生了影响。本研究通过使用2000-2016年期间50家主要的俄罗斯国内银行风险处理事项的银行数据,考察了货币政策对银行风险承担能力的影响程度。主要研究表明,扩张性货币政策通过较低的再融资率向商业银行提供更多的资金来增加其资源,从而鼓励它们扩大其资本化和盈利能力,反过来又会扩大银行承担风险的欲望。此外,通过HP滤波器应用的替代模型得出的结果表明,不同货币政策的周期性行为对银行的借贷意愿有不同的影响,而扩张性货币政策代理服务的关键平滑作用与银行的风险指标高度相关。当利率长时间过低时,货币政策鼓励增加风险承担,在上升期内,可以改变银行的风险感知。最后,着重阐述了俄罗斯银行贷款行为的所有制结构,我们的研究结果表明国有银行的贷款质量较低,且国有银行的风险违约率高于私营分支银行。目前对俄罗斯联邦的持续制裁导致商业机构的减少,尽管银行部门拥有所有权结构,却高度依赖货币政策法规。通过广义估计值来衡量货币政策变量对这些银行欲望风险的影响程度。

关键词：货币政策商业银行银行承担风险广义矩估计

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CT Scanning in Children in a Country with Limited Resources (Burkina Faso)

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Open Journal of Radiology 2023年第4期13卷 200-209页

作者： Ouedraogo Nina-Astrid Some Judicael Melchisedech Ouedraogo Pakisba Ali Zanga Moussa Sore napon Aischa madina Lougue Leonie Claudine Diagnostic Radiology and Medical Imaging Laboratory Health Sciences Training and Research Unit Joseph Ki Zerbo University Ouagadougou Burkina Faso Radiology Department Bogodogo University Hospital Ouagadougou Burkina Faso Radiology Department Ouahigouya Regional University Hospital Ouahigouya Burkina Faso Radiology Department Charles de Gaulle University Paediatric Hospital Ouagadougou Burkina Faso

Objectives: To carry out the assessment of CT scans in children at the Charles de Gaulle University Hospital Center (CGUPH). Patients and Methods: This was a retrospective collection descriptive cross-sectional study conducted from July 1 to November 29, 2021 in the Radiology Department of the CGUPH, having included computed tomography (CT) reports of patients under 18 years of age. The variables explored were the data reported on CT reports (type of scan, reason for examination, dose delivered, and abnormalities described). Results: Two hundred and ninety explorations were collected. The average age was 2.93 years with extremes of 0 and 17 years. The sex ratio was 1.35. Computed tomography scans mainly explored the cranioencephalic, spinal and abdominal stages. The most common reasons for exploration were fetal suffering and head injuries. The most frequently described lesions were anoxo-ischemic sequelar lesions. Mean irradiation doses were 1096 ± 670 mGy·cm for the cranial-encephalic stage, 603 ± 332 mGy·cm for the spine and 311 ± 395 mGy·cm for the thoracic stage. Conclusion: CT in children mainly explored the brain and concerned children under 5 years. Anatomical irradiation doses were higher than diagnostic reference levels in several countries. Optimization of scanning protocols and availability of MRI would reduce ionizing radiation in children.

关键词： Child Computed Tomography Radiation Protection Burkina Faso

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Ensemble Approach Combining Deep Residual Networks and BiGRU with Attention Mechanism for Classification of Heart Arrhythmias

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Computers, Materials & Continua 2024年第7期80卷 341-359页

作者： Batyrkhan Omarov Meirzhan Baikuvekov Daniyar Sultan Nurzhan Mukazhanov madina Suleimenova Maigul Zhekambayeva Department of Information Systems Al-Farabi Kazakh National UniversityAlmaty050040Kazakhstan Department of Mathematical and Computer Modeling International Information Technology UniversityAlmaty050040Kazakhstan Department of Software Engineering Satbayev UniversityAlmaty050013Kazakhstan

This research introduces an innovative ensemble approach,combining Deep Residual Networks(ResNets)and Bidirectional Gated Recurrent Units(BiGRU),augmented with an Attention Mechanism,for the classification of heart *** escalating prevalence of cardiovascular diseases necessitates advanced diagnostic tools to enhance accuracy and *** model leverages the deep hierarchical feature extraction capabilities of ResNets,which are adept at identifying intricate patterns within electrocardiogram(ECG)data,while BiGRU layers capture the temporal dynamics essential for understanding the sequential nature of ECG *** integration of an Attention Mechanism refines the model’s focus on critical segments of ECG data,ensuring a nuanced analysis that highlights the most informative features for arrhythmia *** on a comprehensive dataset of 12-lead ECG recordings,our ensemble model demonstrates superior performance in distinguishing between various types of arrhythmias,with an accuracy of 98.4%,a precision of 98.1%,a recall of 98%,and an F-score of 98%.This novel combination of convolutional and recurrent neural networks,supplemented by attention-driven mechanisms,advances automated ECG analysis,contributing significantly to healthcare’s machine learning applications and presenting a step forward in developing non-invasive,efficient,and reliable tools for early diagnosis and management of heart diseases.

关键词： CNN BiGRU ensemble deep learning ECG arrhythmia heart disease

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