Search results for " neuroradiologia."

showing 10 items of 110 documents

Resting state fMRI as a tool to investigate brain functional connectivity

2014

MRI fMRI Resting-StateSettore MED/37 - NeuroradiologiaSettore MED/26 - NeurologiaSettore MED/36 - Diagnostica Per Immagini E RadioterapiaSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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STUDIO DI SEGMENTAZIONE MORFOVOLUMETRICA IN PAZIENTI CON DECLINO COGNITIVO LIEVE, MALATTIA DI ALZHEIMER E MALATTIA DI PARKINSON

Magnetic Resonance Imaging (MRI) voxel-based morphometry (VBM) Alzheimer Disease (AD) Parkinson Disease (PD) Mild Cognitive Impairment (MCI)Settore MED/37 - Neuroradiologiarisonanza magnetica (MRI) segmentazione morfovolumetrica (VBM) malattia di Alzheimer (AD) malattia di Parkinson PD) declino cognitivo lieve (MCI)Settore MED/36 - Diagnostica Per Immagini E Radioterapia
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Distributed analysis of simultaneous EEG-fMRI time-series: modeling and interpretation issues

2009

Functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) represent brain activity in terms of a reliable anatomical localization and a detailed temporal evolution of neural signals. Simultaneous EEG-fMRI recordings offer the possibility to greatly enrich the significance and the interpretation of the single modality results because the same neural processes are observed from the same brain at the same time. Nonetheless, the different physical nature of the measured signals by the two techniques renders the coupling not always straightforward, especially in cognitive experiments where spatially localized and distributed effects coexist and evolve temporally at different …

MaleDefault-modeBrain activity and meditationComputer scienceinstrumentation/methodsElectroencephalographycomputer.software_genreSynchronizationComputer-AssistedModelsEEGEvoked PotentialsDefault mode networkParametric statisticsVisual CortexBrain Mappingmedicine.diagnostic_testfMRISettore MED/37 - NeuroradiologiaElectroencephalographyMagnetic Resonance ImagingPattern Recognition VisualNeurologicalVisualAdultModels NeurologicalBiomedical EngineeringBiophysicsPattern RecognitionMachine learningEEG-fMRISensitivity and SpecificitymethodsImage Interpretation Computer-AssistedmedicineHumansRadiology Nuclear Medicine and imagingComputer SimulationImage Interpretationbusiness.industryWorking memoryWorking memoryReproducibility of ResultsPattern recognitionAdult Brain Mapping; methods Computer Simulation Electroencephalography; methods Evoked Potentials; Visual; physiology Humans Image Interpretation; Computer-Assisted; methods Magnetic Resonance Imaging; instrumentation/methods Male Models; Neurological Pattern Recognition; physiology Reproducibility of Results Sensitivity and Specificity Visual Cortex; physiologyDistributed source modelingphysiologyEvoked Potentials VisualArtificial intelligencebusinessFunctional magnetic resonance imagingcomputer
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Preliminary experience with a transcranial magnetic resonance-guided focused ultrasound surgery system integrated with a 1.5-T MRI unit in a series o…

2018

OBJECTIVETranscranial magnetic resonance–guided focused ultrasound surgery (tcMRgFUS) is one of the emerging noninvasive technologies for the treatment of neurological disorders such as essential tremor (ET), idiopathic asymmetrical tremor-dominant Parkinson’s disease (PD), and neuropathic pain. In this clinical series the authors present the preliminary results achieved with the world’s first tcMRgFUS system integrated with a 1.5-T MRI unit.METHODSThe authors describe the results of tcMRgFUS in a sample of patients with ET and with PD who underwent the procedure during the period from January 2015 to September 2017. A monolateral ventralis intermedius nucleus (VIM) thalamic ablation was pe…

MaleParkinson's diseaseMovement disordershigh-intensity focused ultrasound ablationIntraoperative Neurophysiological Monitoringmedicine.medical_treatmentinterventional030218 nuclear medicine & medical imagingMagnetic resonance guided focused ultrasound surgery0302 clinical medicineThalamusEssential tremorSettore MED/27 - NeurochirurgiaUltrasoundSettore MED/37 - NeuroradiologiaParkinson DiseaseGeneral MedicineMiddle AgedAblationMagnetic Resonance ImagingTreatment OutcomeNeuropathic painBBB = blood-brain barrier; ET = essential tremor; FRFSE = fast recalled FSE; FSE = fast spin echo; FSPGR = fast spoiled gradient echo; FTM = Fahn-Tolosa-Marin; HI-FU = high-intensity focused ultrasound; MRI; MRgFUS; MS = multiple sclerosis; PD = Parkinson’s disease; Parkinson’s disease; QUEST = Quality of Life in Essential Tremor; SWAN = susceptibility-weighted angiography; UPDRS = Unified Parkinson’s Disease Rating Scale; VIM = ventralis intermedius nucleus; brain; essential tremor; high-intensity focused ultrasound ablation; interventional; magnetic resonance–guided focused ultrasound surgery; stereotactic technique; tcMRgFUS = transcranial magnetic resonance–guided focused ultrasound surgerySettore MED/26 - NeurologiaFemaleRadiologymedicine.symptombrain; essential tremor; high-intensity focused ultrasound ablation; interventional; magnetic resonance-guided focused ultrasound surgery; mrgfus; mri; parkinson's disease; stereotactic techniqueMRIAdultmedicine.medical_specialtybrainEssential Tremormagnetic resonance–guided focused ultrasound surgery03 medical and health sciencesmedicineHumansmagnetic resonance-guided focused ultrasound surgeryUltrasonography InterventionalAgedThalamotomybusiness.industryMRgFUSmedicine.diseasestereotactic techniqueparkinson's diseaseParkinson’s diseaseSurgeryNeurology (clinical)businessSettore MED/36 - Diagnostica Per Immagini E Radioterapia030217 neurology & neurosurgeryFollow-Up StudiesNeurosurgical focus
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Isolated, subtle, neurological abnormalities in neurologically and cognitively healthy aging subjects

2015

The aim of this study is to describe the frequency of isolated, subtle, neurological abnormalities (ISNAs) in a large population of neurologically and cognitively healthy subjects and to compare ISNAs to various types of MRI-detected cerebrovascular lesions and subcortical brain atrophy in different age classes. 907 subjects were selected from a large, prospective hospital-based study. At baseline neurological examination, 17 ISNAs were selected. Primitive reflexes were the most common ISNAs (35.8 %), while dysphagia was the most rarely encountered (0.3 %). Measures of small vessel disease, i.e., deep and subcortical white matter hyperintensity and lacunar infarcts as well as subcortical at…

MalePrimitive reflexesAgingmedicine.medical_specialtyPathologyNeurologyNeurological examinationNeuropsychological TestsCarotid Intima-Media ThicknessAge DistributionApolipoproteins EAtrophyInternal medicinemedicineHumansAgedUltrasonographyNeuroradiologyAged 80 and overNeurologic ExaminationISNAs White matter hyperintensity Lacunae Subcortical atrophymedicine.diagnostic_testMyocardiumSettore MED/37 - NeuroradiologiaMagnetic resonance imagingMiddle Agedmedicine.diseaseMagnetic Resonance ImagingDysphagiaHyperintensityLogistic ModelsNeurologyCardiologyFemaleSettore MED/26 - NeurologiaNeurology (clinical)Nervous System Diseasesmedicine.symptomCognition DisordersSettore MED/36 - Diagnostica Per Immagini E RadioterapiaPsychologyJournal of Neurology
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Comparative study of the efficacy of olmesartan/amlodipine vs. perindopril/amlodipine in peripheral blood pressure after missed dose in type 2 diabet…

2016

Introduction: Combination therapy is needed to control blood pressure (BP) in a large number of hypertensive patients with diabetes mellitus. Adherence to treatment is a major clinical problem; therefore, the time duration of the antihypertensive action of a drug determines BP control when a dose is skipped. Objectives: The aim was to determine whether the fixed-dose combination of olmesartan/amlodipine provides equal efficacy and safety as the perindopril/amlodipine combination when a drug dose is missed. Methods: In this noninferiority trial with a randomized, double-blind, double-dummy parallel group, controlled design, 260 patients received either olmesartan 20-40 mg/amlodipine 5-10 mg …

MaleSettore MED/09 - Medicina InternaAntihypertensive agentsPhysiologyMissed DoseTetrazolesAngiotensin-Converting Enzyme InhibitorsBlood Pressure030204 cardiovascular system & hematologyPharmacologyEssential hypertensionlaw.invention0302 clinical medicineDiabetes mellitusRandomized controlled triallawAngiotensin II Type 1 Receptor BlockerDrug CombinationPerindoprilMedicine030212 general & internal medicineAntihypertensive agentTetrazoleImidazolesSettore MED/37 - NeuroradiologiaMiddle AgedCalcium Channel BlockersDrug CombinationsTreatment OutcomeHypertensionFemaleEssential HypertensionOlmesartanCalcium Channel BlockerCardiology and Cardiovascular MedicineType 2circulatory and respiratory physiologymedicine.drugHumanAdultmedicine.medical_specialtyAmlodipine; Antihypertensive agents; Blood pressure; Diabetes mellitus; Olmesartan; Perindopril; Internal Medicine; Physiology; Cardiology and Cardiovascular MedicineDiabetes mellitumissed dose; hypertension; therapeutic efficacyCombination therapyUrologytherapeutic efficacyNOMedication Adherence03 medical and health sciencesDouble-Blind MethodInternal MedicineHumansOlmesartanAmlodipineamlodipine antihypertensive agents blood pressure diabetes mellitus olmesartan perindoprilImidazolemissed doseAgedbusiness.industryAngiotensin-Converting Enzyme Inhibitormedicine.diseaseAmlodipine; Antihypertensive agents; Blood pressure; Diabetes mellitus; Olmesartan; Perindopril; Adult; Aged; Amlodipine; Angiotensin II Type 1 Receptor Blockers; Angiotensin-Converting Enzyme Inhibitors; Antihypertensive Agents; Blood Pressure; Calcium Channel Blockers; Diabetes Mellitus Type 2; Double-Blind Method; Drug Combinations; Female; Humans; Hypertension; Imidazoles; Male; Medication Adherence; Middle Aged; Perindopril; Tetrazoles; Treatment Outcome; Internal Medicine; Physiology; Cardiology and Cardiovascular MedicineBlood pressureDiabetes Mellitus Type 2PerindoprilAmlodipinebusinessAngiotensin II Type 1 Receptor Blockers
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Parietal subdural empyema as complication of acute odontogenic sinusitis: a case report

2014

Introduction: To date intracranial complication caused by tooth extractions are extremely rare. In particular parietal subdural empyema of odontogenic origin has not been described. A literature review is presented here to emphasize the extreme rarity of this clinical entity. Case presentation: An 18-year-old Caucasian man with a history of dental extraction developed dysarthria, lethargy, purulent rhinorrhea, and fever. A computed tomography scan demonstrated extensive sinusitis involving maxillary sinus, anterior ethmoid and frontal sinus on the left side and a subdural fluid collection in the temporal-parietal site on the same side. He underwent vancomycin, metronidazole and meropenem th…

Malemedicine.medical_specialtyAdolescentMaxillary sinusmedicine.medical_treatmentCase ReportSubdural empyemaSubdural SpaceDiagnosis DifferentialIntracranial infections Odontogenic sinusitis Paranasal sinusitis Subdural empyemaVancomycinMetronidazoleParietal LobemedicineHumansSinusitisSubdural spaceSinusitisCraniotomyOdontogenic sinusitisSubdural empyemaMedicine(all)Empyema SubduralFrontal sinusrhinorrheabusiness.industryParanasal sinusitisSettore MED/37 - NeuroradiologiaSequelaMeropenemGeneral MedicineMaxillary Sinusmedicine.diseaseAnti-Bacterial AgentsSurgerySettore MED/32 - AudiologiaTreatment Outcomemedicine.anatomical_structureSettore MED/31 - OtorinolaringoiatriaIntracranial infectionsAcute DiseaseTooth ExtractionThienamycinsmedicine.symptomTomography X-Ray ComputedbusinessCraniotomyFollow-Up Studies
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Is Transcranial Magnetic Resonance Imaging-Guided Focused Ultrasound a Repeatable Treatment Option? Case Report of a Retreated Patient With Tremor Co…

2019

Introduction In recent years, transcranial Magnetic Resonance Imaging-guided Focused Ultrasound (tcMRgFUS) treatments for functional neurological disorders are giving a new thrust to the field of therapeutic brain lesioning. Objective To present the case of a patient affected by tremor combined with Parkinsonism who underwent a second tcMRgFUS thalamotomy because of relapsing tremor after a few months from the first tcMRgFUS treatment. Methods A 72-yr-old, right-handed man, came to our observation because of a disabling tremor affecting his upper limbs, refusing any invasive surgical procedure and already treated by tcMRgFUS left Vim thalamotomy. However, clinical benefit had brief duration…

Malemedicine.medical_specialtyInterventional magnetic resonance imagingmedicine.medical_treatmentEssential TremorFocused ultrasoundParkinsonian DisordersTremorMedicineHumansAgedmedicine.diagnostic_testbusiness.industryPatient affectedThalamotomySettore MED/27 - NeurochirurgiaParkinsonismSettore FIS/01 - Fisica SperimentaleTreatment optionsSettore MED/37 - NeuroradiologiaMagnetic resonance imagingmedicine.diseaseMagnetic Resonance ImagingTreatment OutcomeStereotaxic techniqueSurgerySettore MED/26 - NeurologiaNeurology (clinical)RadiologyHigh-intensity focused ultrasound ablation Minimally invasive surgical procedures Stereo- taxic techniques Tremor Parkinsonian disorders Interventional magnetic resonance imaging Intraoperative monitoringbusinessSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Preoperative evaluation of peripheral nerve injuries: What is the place for ultrasound?

2016

OBJECTIVE The purpose of this study was to evaluate the usefulness of ultrasound in the preoperative workup of peripheral nerve lesions and illustrate how nerve ultrasonography can be integrated in routine clinical and neurophysiological evaluation and in the management of focal peripheral nerve injuries. The diagnostic role and therapeutic implications of ultrasonography for different neuropathies are described. METHODS The authors analyzed the use of ultrasound in 119 entrapment, tumoral, posttraumatic, or postsurgical nerve injuries of limbs evaluated in 108 patients during 2013 and 2014. All patients were candidates for surgery, and in all cases the evaluation included clinical examina…

Malemedicine.medical_specialtySNAP = sensory nerve action potentialSettore MED/19 - Chirurgia PlasticaPhysical examinationElectromyographyUlnar neuropathy030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicinePeripheral Nerve InjuriesPreoperative CaremedicineHumansCarpal tunnel syndromeRetrospective StudiesUltrasonographyNeurologic ExaminationMUAP = motor unit action potentialmedicine.diagnostic_testCMAP = compound muscle action potentialbusiness.industryelectrodiagnosiultrasoundUltrasoundPeripheral Nervous System DiseasesSettore MED/37 - NeuroradiologiaGeneral MedicineMiddle AgedEMG = electromyographymedicine.diseaseCSA = cross-sectional areaSurgeryLSD = least significant differencenerve surgeryperipheral nerveNerve conduction studyEntrapment Neuropathynerve imagingFemaleSettore MED/26 - NeurologiabusinessSettore MED/36 - Diagnostica Per Immagini E Radioterapia030217 neurology & neurosurgeryExploratory surgery
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Transcranial magnetic resonance-guided focused ultrasound surgery at 1.5T: a technical note.

2019

Magnetic resonance-guided focused ultrasound is one of the emerging non-invasive technologies offering both image guidance and thermal monitoring. In recent years transcranial application of this technology is starting to impact heavily the neuroscience field. We present here the imaging protocol and the technological methods successfully used with a transcranial magnetic resonance-guided focused ultrasound system certified for clinical treatments of functional neurological disorders, integrated for the first time with a 1.5T magnetic resonance scanner. Compared to the body radiofrequency coil (the one commonly used with transcranial magnetic resonance-guided focused ultrasound system integ…

Maleminimally invasive surgical procedureComputer sciencebraininterventionalSignal-To-Noise RatioNeurosurgical ProcedureMagnetic Resonance Imaging InterventionalFocused ultrasoundNeurosurgical Procedures030218 nuclear medicine & medical imagingMagnetic resonance guided focused ultrasound surgery03 medical and health sciences0302 clinical medicinemedicinemagnetic resonance imagingHumansGeneral NeuroradiologyRadiology Nuclear Medicine and imagingImage guidanceAgedmedicine.diagnostic_testtomography X-ray computedMagnetic resonance scannerinterventional magnetic resonance imagingSettore MED/37 - NeuroradiologiaMagnetic resonance imagingTechnical noteGeneral MedicineSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)minimally invasive surgical proceduresstereotactic techniqueTreatment Outcomebrain; high-intensity focused ultrasound ablation; interventional magnetic resonance imaging; minimally invasive surgical procedures; stereotactic techniques; aged; female; high-intensity focused ultrasound ablation; humans; male; neurosurgical procedures; signal-to-noise ratio; tomography X-ray computed; treatment outcome; magnetic resonance imaging; interventionalElectromagnetic coilstereotactic techniquesHigh-Intensity Focused Ultrasound AblationFemaleNeurology (clinical)Settore MED/36 - Diagnostica Per Immagini E RadioterapiaTomography X-Ray Computed030217 neurology & neurosurgeryHumanRadiofrequency coilBiomedical engineeringThe neuroradiology journal
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