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Advances in Lung Cancer 2020年第2期9卷 17-23页

作者： Patrick Mailleux Marie Mailleux Anne-Sophie Marchand Department of Imaging Clinique St Luc Bouge Belgium Department of Oncology Clinique St Luc Bouge Belgium Department of Imaging CHU UCL Namur Namur Belgium

We report two cases of brain metastasis from a lung adenocarcinoma. Magnetic Resonance Imaging (mri) appearance was closely correlated with the macroscopic and microscopic findings that showed multiples nodules of a w... 详细信息

关键词： brain mri Metastasis Lung Adenocarcinoma Papillary

A New Medical Image Enhancement Algorithm Based on Fractional Calculus

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Computers, Materials & Continua 2021年第8期68卷 1467-1483页

作者： Hamid A.Jalab Rabha W.Ibrahim Ali M.Hasan Faten Khalid Karim Ala’a R.Al-Shamasneh Dumitru Baleanu Faculty of Computer Science and Information Technology University MalayaKuala Lumpur50603Malaysia Nonlinear Dynamics Research Center(NDRC) Ajman UniversityAjman346UAE College of Medicine Al-Nahrain UniversityBaghdad10001Iraq Department of Computer Science College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh84428Saudi Arabia Department of Mathematics Cankaya UniversityBalgatAnkara06530Turkey Institute of Space Sciences Magurele-BucharestR76900Romania Department of Medical Research China Medical UniversityTaichung40402Taiwan

The enhancement of medical images is a challenging research task due to the unforeseeable variation in the quality of the captured *** captured images may present with low contrast and low visibility,which might inuence the accuracy of the diagnosis *** overcome this problem,this paper presents a new fractional integral entropy(FITE)that estimates the unforeseeable probabilities of image pixels,posing as the main contribution of the *** proposed model dynamically enhances the image based on the image *** main advantage of FITE lies in its capability to enhance the low contrast intensities through pixels’***,the pixel probability of the fractional power is utilized to extract the illumination value from the pixels of the ***,the contrast of the image is then adjusted to enhance the regions with low ***,the fractional integral entropy approach is implemented to enhance the low visibility contents from the input *** were conducted on brain mri,lungs CT,and kidney mri scans datasets of different image qualities to show that the proposed model is robust and can withstand dramatic variations in *** obtained comparative results show that the proposed image enhancement model achieves the best BRISQUE and NIQE ***,this model improves the details of brain mri,lungs CT,and kidney mri scans,and could therefore potentially help the medical staff during the diagnosis process.

关键词： Fractional calculus image enhancement brain mri lungs CT kidney mri

brainstem abscesses caused by Listeria monocytogenes:A case report

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World Journal of Clinical Cases 2022年第22期10卷 7924-7930页

作者： Jie Wang Yu-Chen Li Ke-Yu Yang Jing Wang Zan Dong Department of Neurology First Hospital of Shanxi Medical UniversityTaiyuan 030000Shanxi ProvinceChina Department of Critical Care Medicine Aerospace Center HospitalBeijing 100049China Department of Neurology Yuncheng Central HospitalYuncheng 043100Shanxi ProvinceChina

BACKGROUNDIntracranial Listeria infections are common in newborns and immunocompromisedindividuals, but brainstem abscesses are *** SUMMARYWe report a rare case of brainstem abscesses caused by Listeria monocytogenes in apreviously healthy adult patient. The patient’s magnetic resonance imagingexamination showed multiple brain abscesses, and his second cerebrospinal fluidculture test indicated the presence of Listeria monocytogenes. Despite earlyempirical therapy, the patient’s condition progressively deteriorated. Because thepatient's abscesses were located in the brainstem and multiple lobes, surgery wasnot possible. The patient died 40 d after *** case highlights the importance of rational clinical use of drugs to avoidpotentially serious infectious complications.

关键词： Listeria monocytogenes brainstem abscesses Drug brain mri Therapy Prognosis Case report

Limbic Encephalitis as the First Manifestation of Neurosyphilis: A Diagnostic Challenge

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Case Reports in Clinical Medicine 2022年第1期11卷 19-24页

作者： Wadi Bnouhanna Basma Marzouk Mounia Rahmani Maria Benabdeljlil Saadia Aidi Department of Neurology A and Neuropsychology Hospital of Specialties Ibn Sina University Hospital Faculty of Medicine and Pharmacy of Rabat Mohammed V University Rabat Morocco

Limbic encephalitis (LE) is a clinical entity related to a mesial temporal lesion resulting in a combination of anterograde memory dysfunction, behavioral changes, and seizures. The most common causes of limbic encephalitis are Herpes Simplex Virus (HSV) encephalitis, autoimmune encephalitis. Neurosyphilis is an exceptional aetiology. The early diagnosis and management of the disease determine the prognosis. This clinical course highlights the diagnostic challenge limbic encephalitis can cause and the importance of considering neurosyphilis in patients with specific or unspecific neurological symptoms. We report a case of a mesiotemporal form of neurosyphilis revealed by a LE.

关键词： Limbic Encephalitis Neurosyphilis brain mri

Ischaemic Stroke Complicating Infective Endocarditis: Microbleeds Are the Diagnostic Clue

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Case Reports in Clinical Medicine 2022年第1期11卷 13-18页

作者： Wadi Bnouhanna Taho Oulounao Adlaide Chaima EL Jemili Mounia Rahamani Maria Benabdeljlil Saadia Aidi Department of Neurology A and Neuropsychology Hospital of Specialties Ibn Sina University Hospital Faculty of Medicine and Pharmacy of Rabat Mohammed V University Rabat Morocco

Introduction: Ischemic strokes represent a classic complication of infective endocarditis (IE) and are most often related to the fragmentation of valvular vegetation. In most cases, they occur in the Sylvian territory and are related to Staphylococcus aureus. mri can demonstrate, in addition to the AVCI image, cerebral microbleeds (CMBs) that are very suggestive of the diagnosis. We present the case of a patient who presented an ischemic stroke occurring in the context of infective endocarditis. Observation: A 32-year-old woman with no previous medical history initially presented with acute febrile headache, two weeks later she developed right hemiplegia with aphasia in the context of fever. Her general examination revealed lesions on the soles of her feet, in the form of nodules, infected in places, suggestive of Janeway nodules (characteristic of IE). The brain mri showed an ischemic stroke in the Sylvian territory, with the presence of multiple microbleeds on the magnetic susceptibility sequences. The biological examination showed a severe inflammatory syndrome;the transthoracic echocardiography (TTE) confirmed the presence of vegetation on the aortic valve;and the blood cultures showed a Staphylococcus aureus. Antibiotic therapy was started, and the patient was transferred to the cardiology department. Discussion: Our observation has a double interest. The first is clinical due to the presence of plantar nodules (Janeway’s nodules) that are characteristic of IE which should orientate the diagnosis before the installation of the stroke, and the second is radiological and linked to the discovery of microbleeds. Their presence is increasingly reported in the literature, but their pathophysiology is not yet very clear. Conclusion: Stroke is the most frequent extracardiac complication during IE. The presence of microbleeds contributes to early diagnosis, especially in asymptomatic f

关键词： Ischaemic Stroke Infective Endocarditis brain mri Microbleeds

Prevalence of Cerebral Atherosclerosis among Patients with Metabolic Syndrome: A Case Control Study on Egyptian Subjects

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World Journal of Cardiovascular Diseases 2016年第1期6卷 8-13页

作者： Sherif Elwan Tarek Zoheir Tawfik Heba Sayed Assal Shaimaa El-Jaafary Montasser Mohamed Hegazy Salwa Tawfik Alshaimaa Mahmoud Aboulfotooh Foad Abd-Allah Department of Internal Medicine National Research Institute Cairo Egypt Department of Neurology Cairo University Cairo Egypt

Background: The metabolic syndrome (MetS) is a clustering of vascular risk factors that tend to increase the risk of occurrence of diabetes mellitus type 2 (DMT2), cardiovascular and cerebro-vascular ischemic events. The aim of the present study is to investigate the association of extra-cranial and intracranial arterial atherosclerosis as well as silent brain infarction (SBI) with MetS, thereby determining the potential cerebrovascular atherosclerotic risk of MetS in the Egyptian population. Methods: A case control study was conducted on 50 Egyptian subjects with MetS and 30 without with age range from 40 - 60 years old. All participants were free from cerebrovascular ischemic events [stroke or transient ischemic attack (TIA)]. All participants underwent complete neurological examination, assessment of the diagnostic criteria for MetS, carotid and transcranial duplex ultrasonography (U/S) and brain mri. Results: Preclinical carotid atherosclerosis (athero-sclerotic plaques with brain infarcts among asymptomatic individuals. Interventions to reduce MetS are important for prevention of subclinical and clinical cerebral atherosclerotic disease.

关键词： Metabolic Syndrome Preclinical Atherosclerosis Silent brain Infarction Neurovascular Ultrasound brain mri Egyptian Population