With the number of affected individuals still growing world-wide, the research on COVID-19 is continuously expanding. The deep learning community concentrates their efforts on exploring if neural networks can potentially support the diagnosis using CT and radiograph images of patients' lungs. The two most popular publicly available datasets for COVID-19 classification are COVID-CT and COVID-19 Image Data Collection.
View Article and Find Full Text PDFMagnetic resonance imaging (MRI) is a widely used method for the diagnosis of multiple sclerosis that is essential for the detection and follow-up of the disease. OBJECTIVE: The Polish Medical Society of Radiology (PLTR) and the Polish Society of Neurology (PTN) present the second version of their recommendations for investigations routinely conducted in magnetic resonance imaging departments in patients with multiple sclerosis. This version includes new data and practical comments for electroradiology technologists and radiologists.
View Article and Find Full Text PDFMagnetic resonance imaging (MRI) is a widely used method for the diagnosis of multiple sclerosis (MS) that is essential for the detection and follow-up of the disease. The Polish Medical Society of Radiology (PLTR) and the Polish Society of Neurology (PTN) present the second version of the recommendations for examinations routinely conducted in magnetic resonance imaging departments in patients with MS, which include new data and practical comments for electroradiology technicians and radiologists. The recommended protocol aims to improve the MRI procedure and, most importantly, to standardise the method of conducting scans in all MRI departments.
View Article and Find Full Text PDFMagnetic resonance imaging is widely used in diagnosing multiple sclerosis as a basic method for detecting and monitoring the disease. INTRODUCTION: Polish Medical Society of Radiology presents the second version of the recommendations for the routinely conducted MRI in multiple sclerosis, which include new data and practical remarks for radiographers and radiologists. The recommended protocol aims to improve the imaging procedure and, most importantly, to standardize conducting MRI scans in all MRI departments.
View Article and Find Full Text PDFMultiple sclerosis is a disease that still has not been fully understood and calls for better diagnostic procedures for the improvement of everyday patient care and drug development. Routine magnetic resonance examinations reveal demyelinating focal lesions, but they do not correlate sufficiently with the patients' disability and cognitive impairment. For more than 100 years it has been known that demyelination affects not only white but also grey matter of the brain.
View Article and Find Full Text PDFObjectives: The published data on the relation between arterial hypertension (AH) and hemifacial spasm (HFS) are controversial. The aim of the study was to determine the prevalence of AH in HFS patients and the relation of AH and compression of the brainstem at the region of vasomotor center.
Materials And Methods: The study included 60 of primary HFS patients and 60 healthy controls matched by age.
Objectives: So far, there are only two studies evaluating the relation between the small volume of the posterior cranial fossa (VPCF) and the occurrence of HFS, both on Asian population. The aim of the study was to determine small VPCF and arterial hypertension (AH), as risk factors for hemifacial spasm (HFS) and their relation to neurovascular conflict (NVC) in Polish Caucasian-origin patients.
Materials And Methods: The study included 60 patients with idiopathic HFS and 60 healthy volunteers matched by sex and age.
The relationship between the prevalence of multiple sclerosis (MS) and sunlight's ultraviolet radiation was proved. Oxidative stress plays a role in the pathogenic traits of MS. Melatonin possesses antioxidative properties and regulates circadian rhythms.
View Article and Find Full Text PDFDiagnostic imaging in cerebral venous sinus thrombosis poses difficulties due to the relatively rare incidence of this pathology and its usually inconclusive clinical and radiological symptoms. The preliminary examination is usually performed using computed tomography, whereas magnetic resonance imaging (MRI) provides better visualisation of the lesion. Computed tomography and magnetic resonance imaging angiography enable the characterisation of the blood flow in the pathologically affected vessels in more detail.
View Article and Find Full Text PDFThe aim of our work was to evaluate the apparent diffusion coefficient (ADC) values of normal brain over a wide age range and in different cerebral structures, including the white and grey matter. A population of 89 subjects (39 male, 50 female, age range: 3-69 years) was divided into age groups designated as 1-7 as follows: 3-9; 10-19; 20-29; 30-39; 40-49; 50-59; 60-69 years old. All subjects underwent a head MRI using a 1,5 T GE system with diffusion-weighted imaging using spin echo echo planar imaging (EPI) for b=0, 500, 1000, and 1200 s/mm(2).
View Article and Find Full Text PDFBackground And Purpose: Hemifacial spasm (HFS), a movement disorder manifested by unilateral spasms of the muscles innervated by the facial nerve, interferes with social life in about 90% of patients, causing social isolation and depression and having a significant impact on the quality of life. The aim of the study was to assess factors affecting the quality of life in patients with HFS in respect of influence of the severity of depression symptoms and botulinum toxin type A (BTX-A) therapy.
Material And Methods: Eighty-five out of 129 patients included in the HFS database of the Movement Disorders Outpatient Clinic, Department of Neurology, University Hospital, Cracow who fulfilled the inclusion criteria and had no exclusion criteria (suffering from concomitant movement disorders, other severe chronic diseases or cognitive impairment) were studied.
Background And Purpose: Hemifacial spasm (HFS) is frequently accompanied by other symptoms, such as visual and auditory disturbances or pain. The aim of the study was to assess the occurrence of auditory symptoms accompanying HFS using subjective and objective methods, their relation with other HFS symptoms, and their resolution after botulinum toxin (BTX-A) treatment.
Material And Methods: The occurrence of hypoacusis, ear clicks and tinnitus was assessed by questionnaire in 126 HFS patients from an electronic database which included medical data such as severity of HFS rated by clinical scale and magnetic resonance imaging focused on the presence of vascular nerve VII and VIII conflict.
Objective: In this study, the mid-term results (6 month follow-up) of the endovascular treatment in patients with Chronic Cerebro-Spinal Venous Insufficiency (CCSVI) and multiple sclerosis (MS) were prospectively evaluated.
Methods: Thirty-six patients with confirmed MS and CCSVI underwent endovascular treatment by the means of the uni- or bilateral jugular vein angioplasty with optional stent placement. All the patients completed 6 month follow-up.
Background: Multiple sclerosis (MS) is a chronic disease with not well understood etiology. Recently, a possible association of MS with compromised venous outflow from the brain and spinal cord has been studied (chronic cerebrospinal venous insufficiency - CCSVI). Angioplasties of internal jugular veins (IJV) and azygous vein (AV) have given promising results, with improvements in patients' clinical status.
View Article and Find Full Text PDFTremor often accompanies dystonia and some other movement disorders. There are no reports describing tremor in patients with hemifacial spasm (HFS). The aim of the study was to assess the occurrence, type and parameters of tremor in HFS patients.
View Article and Find Full Text PDFBackground: In virtual colonoscopy (VC) we are capable to assess all organs located between a diaphragm and pelvic bottom. This report provides a breakdown of extracolonic pathological findings in VC performed in standard indications.
Material/methods: We reviewed 71 consecutive VC (29 men and 42 women) performed using double-slice scanner General Electric High Speed NX/I Pro.
CT perfusion is a new diagnostic method which enables imaging of the hemodynamics of tissues and organs. Until now most of the publications have been focused on the use of this technique to assess acute stroke. The aim of the presented work is to show the role of CT perfusion in the diagnosis of cerebral gliomas.
View Article and Find Full Text PDFWiad Lek
July 2005
WHO has classified depression disturbances--due to widespread existence and serious medical consequences and resulting social and economic effects--as a priority health problem in all the developed countries. The significance of the depression disturbances is fully comparable to such illnesses as heart diseases, cancer and HIV infection. The research made in the USA (NIMH programmer) shows that first contact doctors are not able to detect depression in relation to 50-70% of the people ill with it.
View Article and Find Full Text PDFWiad Lek
July 2005
The aim of project is to build a European network, which will integrate the research capabilities of a group of research institutes and university departments to provide an infrastructure for the highest quality research in psychiatric disorders, particularly in schizophrenia and schizoaffective disturbances. This network will integrate original computer expert advisory system called "Saba" with modern brain imaging techniques and neurophysiological methods, which allows for the delineation of specific subtypes and particular episodes of mental disorders and their neural bases will be studied by state-of-the art (high tech) imaging techniques. This approach will lead to new investigatory, diagnostic and therapeutic techniques.
View Article and Find Full Text PDFThe paper presents new ways of visualizing internal structures of the large intestine. Use of spiral computed tomography (CT) or magnetic resonance imaging (MRI) combined with appropriate software leads to imaging that can be compared with colonoscopy or double contrast enema. The authors discuss patients' preparation, methods for CT and MRI variants, indications, advantages and costs.
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