Search results for "High-Intensity Focused Ultrasound ablation"

showing 7 items of 17 documents

Combining split-and-merge and multi-seed region growing algorithms for uterine fibroid segmentation in MRgFUS treatments

2016

Uterine fibroids are benign tumors that can affect female patients during reproductive years. Magnetic resonance-guided focused ultrasound (MRgFUS) represents a noninvasive approach that uses thermal ablation principles to treat symptomatic fibroids. During traditional treatment planning, uterus, fibroids, and surrounding organs at risk must be manually marked on MR images by an operator. After treatment, an operator must segment, again manually, treated areas to evaluate the non-perfused volume (NPV) inside the fibroids. Both pre- and post-treatment procedures are time-consuming and operator-dependent. This paper presents a novel method, based on an advanced direct region detection model, …

SpeedupUterine fibroidsImage ProcessingBiomedical EngineeringThermal ablation02 engineering and technologyMagnetic Resonance Imaging InterventionalFocused ultrasound030218 nuclear medicine & medical imaging03 medical and health sciencesComputer-Assisted0302 clinical medicineImage Processing Computer-Assisted0202 electrical engineering electronic engineering information engineeringmedicineHumansSegmentationRadiation treatment planningSplit-and-merge segmentationSettore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniMRgFUS treatmentsInterventionalLeiomyomaMulti-seed adaptive region growingbusiness.industrymedicine.diseaseMagnetic Resonance Imagingfemale genital diseases and pregnancy complicationsComputer Science ApplicationsAutomatic segmentation MRgFUS treatments Multi-seed adaptive region growing Split-and-merge segmentation Uterine fibroids Algorithms Female High-Intensity Focused Ultrasound Ablation Humans Leiomyoma Magnetic Resonance Imaging Magnetic Resonance Imaging Interventional Image Processing Computer-AssistedMRgFUS treatmentRegion growingAutomatic segmentation; MRgFUS treatments; Multi-seed adaptive region growing; Split-and-merge segmentation; Uterine fibroids; Algorithms; Female; High-Intensity Focused Ultrasound Ablation; Humans; Leiomyoma; Magnetic Resonance Imaging; Magnetic Resonance Imaging Interventional; Image Processing Computer-AssistedHigh-Intensity Focused Ultrasound AblationFemale020201 artificial intelligence & image processingAutomatic segmentationbusinessMerge (version control)AlgorithmAlgorithmsUterine fibroidsMedical & Biological Engineering & Computing
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MRgFUS results Italy

2017

PURPOSE: To present our preliminary results achieved with the first Italian installation of a trans-cranial MRI-guided Focused Ultrasound Surgery (tcMRgFUS) certified system for functional neurosurgery. Moreover, to our knowledge, this is the world-first tcMRgFUS system ever installed on a 1.5T MRI unit. Technical issues faced to achieve a safe and effective treatment will be discussed focusing on MR high-resolution live imaging and thermometry sequences optimization. METHOD AND MATERIALS: Patient enrollment was based on indication for functional neurosurgery and evidence of medication-refractory disease; a detailed medical history has been collected together with a complete clinical examin…

Stereotaxic TechniquesBrain; High-Intensity Focused Ultrasound ablation; Magnetic Resonance Imaging Interventional; Minimally Invasive Surgical Procedures; Stereotaxic TechniquesHigh-Intensity Focused Ultrasound ablationSettore MED/27 - NeurochirurgiaBrainSettore MED/37 - NeuroradiologiaSettore MED/26 - NeurologiaMinimally Invasive Surgical ProcedureMagnetic Resonance Imaging InterventionalSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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MR-guided focused ultrasound application for moving target tumor ablation in abdominal area: Coil selection

2020

PubMed: 32276552

SwineThermal ablationMagnetic Resonance Imaging InterventionalTumor ablationFocused ultrasound030218 nuclear medicine & medical imagingMagnetic resonance guided focused ultrasound surgery03 medical and health sciencesCE marking0302 clinical medicineEcho planar imagingAbdomenAnimalsHumansMedicineRadiology Nuclear Medicine and imagingRadiological and Ultrasound TechnologyEcho-Planar ImagingPhantoms Imagingbusiness.industryCoils magnetic resonance thermometry tracking echo planar imaging magnetic resonance-guided focused-ultrasound surgery CE marking validation verificationTrackingLiver NeoplasmsVerificationSettore MED/37 - NeuroradiologiaCoilsGeneral MedicineFocused ultrasound surgeryDisease Models AnimalLiverMagnetic resonance thermometryElectromagnetic coil030220 oncology & carcinogenesisHigh-Intensity Focused Ultrasound AblationbusinessSettore MED/36 - Diagnostica Per Immagini E RadioterapiaMri guidedMagnetic resonance thermometryBiomedical engineering
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[Non-invasive trans-cranial magnetic resonance imaging-guided focused ultrasounds surgery to treat neurologic disorders]

2016

Negli anni passati le applicazioni non invasive degli ultrasuoni focalizzati guidati da risonanza magnetica per il trattamento dei disordini neurologici sono state osta- colate da limiti tecnici oggi finalmente superati. In Italia, nel corso del 2015, sono stati effettuati i primi trattamenti utilizzando per la prima volta al mondo un comune scanner di risonanza magnetica da 1.5T. I risultati a oggi ottenuti con questa nuova metodica e le sue future possibili appli- cazioni sono molto promettenti e aprono la strada verso nuove opzioni terapeutiche, sicure ed efficaci, un tempo impensabili. In past years non-invasive clinical applications of magnetic resonance-guided focused ultrasound for t…

Treatment OutcomeItalySettore MED/27 - NeurochirurgiaHumansHigh-Intensity Focused Ultrasound AblationSettore MED/37 - NeuroradiologiaNervous System DiseasesMagnetic Resonance ImagingHuman
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Transcranial magnetic resonance-guided focused ultrasound thalamotomy as a safe treatment option in multiple sclerosis patients with essential tremor

2020

Transcranial magnetic resonance-guided focused ultrasound is a recently introduced incisionless treating option for essential tremor and tremor-dominant idiopathic Parkinson disease. There is preliminary evidence that it may result in a promising effective treatment option for other movement disorders too. Here, we report on two patients with multiple sclerosis with medication refractory debilitating essential tremor comorbidity who successfully underwent unilateral Vim tcMRgFUS thalamotomy for tremor control. Patients' clinical condition and expanded disability status scale scores showed no changes during the 1-year follow-up period with no evidence of multiple sclerosis activity or progre…

medicine.medical_specialtyNeurologyMovement disordersMagnetic Resonance SpectroscopyMultiple Sclerosismedicine.medical_treatmentEssential TremorDermatologyStereotaxic Techniques03 medical and health sciences0302 clinical medicinePhysical medicine and rehabilitationThalamusMultiple SclerosimedicineHumansInterventional Magnetic Resonance Imaging030212 general & internal medicineExpanded Disability Status Scalemedicine.diagnostic_testEssential tremorThalamotomybusiness.industrySettore MED/27 - NeurochirurgiaMultiple sclerosisSettore MED/37 - NeuroradiologiaMagnetic resonance imagingGeneral Medicinemedicine.diseaseMagnetic Resonance Imagingnervous system diseasesPsychiatry and Mental healthTreatment OutcomeStereotaxic techniqueHigh-Intensity Focused Ultrasound AblationSettore MED/26 - NeurologiaNeurology (clinical)medicine.symptombusinessSettore MED/36 - Diagnostica Per Immagini E Radioterapia030217 neurology & neurosurgery
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Restoring Neurological Physiology: The Innovative Role of High-Energy MR-Guided Focused Ultrasound (HIMRgFUS). Preliminary Data from a New Method of …

2017

Background Tremor is a disabling condition, common to several neurodegenerative diseases. Lesioning procedures and deep brain stimulation, respectively, of the ventralis intermedius nucleus for intentional tremor, and of the subthalamic nucleus for parkinsonian resting tremor, have been introduced in clinical practice for patients refractory to medical treatment. The combination of high-energy focused ultra-sound (HIFUS) with sophisticated magnetic resonance (MR) instrumentation, together with accurate knowledge of the stereotactic brain coordinates, represents a revolution in neuromodulation. Methods At the Neurosurgical Clinic and the Radiology Department of the University of Palermo,, tw…

medicine.medical_specialtyParkinson's diseaseDeep brain stimulationmedicine.medical_treatmentNeurosurgical ProcedureSeverity of Illness IndexNeurosurgical ProceduresFocused ultrasoundMRI-guided focused ultrasound (MRgFUS)03 medical and health sciences0302 clinical medicineTremormedicineHumans030212 general & internal medicineResting tremorVentral Thalamic Nucleimedicine.diagnostic_testEssential tremorSettore MED/27 - Neurochirurgiabusiness.industryEssential tremor; functional neurosurgery; lesioning surgery; MRI-guided focused ultrasound (MRgFUS); Parkinson’s disease; brain; high-intensity focused ultrasound ablation; humans; magnetic resonance imaging; neurosurgical procedures; severity of illness index; surgery computer-assisted; tremor; ventral thalamic nucleiSettore MED/37 - NeuroradiologiaBrainMagnetic resonance imagingLesioning surgerymedicine.diseaseMagnetic Resonance ImagingNeuromodulation (medicine)nervous system diseasesSurgerySubthalamic nucleusFunctional neurosurgerySurgery Computer-AssistedParkinson’s diseaseEssential tremorHigh-Intensity Focused Ultrasound AblationSettore MED/36 - Diagnostica Per Immagini E Radioterapiabusiness030217 neurology & neurosurgeryHuman
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Transcranial Magnetic Resonance-Guided Focused Ultrasound Surgery for Brain Tumor Ablation: Are We Ready for This Challenging Treatment?

2018

The treatment of high-grade gliomas (HGGs) remains a challenge for modern therapy. The prognosis for these patients has been poor. The median patient survival after diagnosis has been ∼1 year with surgery and/or radiotherapy and temozolomide.1 The need for a histological diagnosis of tumor tissue in each case and the importance of decompression in symptomatic patients are well established, and extensive surgical resection has been shown to significantly prolong survival. Several factors play a role in the prognosis of patients with HGG, including age, performance status using the Karnofsky performance scale, and the extent of resection.2, 3 At present, the standard therapy for HHG consists …

medicine.medical_specialtymedicine.medical_treatmentBrain tumor01 natural sciencesMagnetic resonance guided focused ultrasound surgeryBrain Neoplasm03 medical and health sciences0302 clinical medicine0103 physical sciencesmedicineHumans010306 general physicsSettore MED/27 - Neurochirurgiabusiness.industryBrain NeoplasmsSettore MED/37 - NeuroradiologiaBrainAblationmedicine.diseaseMagnetic Resonance Imagingbrain; brain neoplasms; high-intensity focused ultrasound ablation; humans; magnetic resonance imagingHigh-Intensity Focused Ultrasound AblationSurgeryNeurology (clinical)RadiologySettore MED/36 - Diagnostica Per Immagini E Radioterapiabusiness030217 neurology & neurosurgeryHumanWorld neurosurgery
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