Search results for "MRgFUS"

showing 10 items of 31 documents

A fully automatic 2D segmentation method for uterine fibroid in MRgFUS treatment evaluation

2015

PurposeMagnetic Resonance guided Focused UltraSound (MRgFUS) represents a non-invasive surgical approach that uses thermal ablation to treat uterine fibroids. After the MRgFUS treatment, an operator must manually segment the treated fibroid areas to evaluate the NonPerfused Volume (NPV). This manual approach is operator-dependent, introducing issues of result reproducibility, which could lead to errors in the subsequent follow-up phase. Moreover, manual segmentation is time-consuming, and can have a negative impact on the optimization of both machine-time and operator-time. MethodTo address these issues, in this paper a novel fully automatic method based on the unsupervised Fuzzy C-Means cl…

medicine.medical_specialtyDatabases FactualUterine fibroidsComputer scienceAdaptive thresholdingImage ProcessingAdaptive thresholding; Automatic segmentation; Fuzzy C-Means clustering; MRgFUS treatment; Uterine fibroids; Female; Humans; Image Processing Computer-Assisted; Leiomyoma; Radiography; Algorithms; Databases Factual; Magnetic Resonance Imaging; Ultrasonography InterventionalHealth InformaticsFuzzy logicDatabasesComputer-AssistedImage Processing Computer-AssistedmedicineHumansSegmentationCluster analysisFactualUltrasonography InterventionalUltrasonographySettore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniInterventionalLeiomyomaPixelbusiness.industryPattern recognitionmedicine.diseaseMagnetic Resonance ImagingFuzzy C-Means clusteringComputer Science ApplicationsSurgeryRadiographyTreatment evaluationMRgFUS treatmentFully automaticFemaleManual segmentationArtificial intelligenceAutomatic segmentationAdaptive thresholding Automatic segmentation Fuzzy C-Means clustering MRgFUS treatment Uterine fibroidsbusinessAlgorithmsUterine fibroids
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A Semi-automatic Multi-seed Region-Growing Approach for Uterine Fibroids Segmentation in MRgFUS Treatment

2013

Fibroids are benign tumors growing in the uterus. Most of fibroids do not require treatment unless they are causing symptoms. Traditional surgery treatments, like myomectomy and hysterectomy, are very invasive therapeutic approaches which not always preserves reproductive potential of the woman. MRgFUS, performed with Insightec ExAblate 2100 equipment, is a new and noninvasive technique for uterine fibroids treatment, not requiring hospitalization and recovery time for patients. An initial assessment of MRgFUS treatment is made by computing the ablated volume of uterine fibroid. In this paper a semi-automatic approach, based on region-growing segmentation technique, is proposed. The impleme…

medicine.medical_specialtyHysterectomyMRgFUSUterine fibroidsComputer scienceExAblatemedicine.medical_treatmentmedicine.diseasefemale genital diseases and pregnancy complicationsSegmentationTreatment evaluationArtificial IntelligenceRegion growingMDSSmedicineRegion-growingReproductive potential3D volume reconstructionUterine fibroidSegmentationSemi automaticRadiologySoftware2013 Seventh International Conference on Complex, Intelligent, and Software Intensive Systems
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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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Analysis of signal-to-noise ratio for a 2-channels coil developed to enable transcranial Magnetic Resonance-guided Focused Ultrasound Surgery (tcMRgF…

2018

mricMRgFUS
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TRANS-CRANIAL MRI-GUIDED FOCUSED ULTRASOUND SURGERY (TCMRGFUS): PRELIMINARY ITALIAN (AND WORLD-FIRST) EXPERIENCE AT 1,5 TESLA (first 3 cases treated)

2015

PURPOSE: We 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. TcMRgFUS is a promising new technology for the non-invasive treatment of neurologic disorders such as Essential Tremor (ET), tremor dominant idiopathic Parkinson's Disease (PD) and Neuropathic Pain (NP). This is a new method for focal targeting and lesioning of specific regions in the brain through intact skull by using high intensity focused ultrasound beam to achieve thermal ablation and …

tcMRgFUS functioanl neurosurgery 1.5T MRISettore MED/27 - NeurochirurgiaSettore MED/37 - Neuroradiologia
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Trans-cranial MRI-guided Focused Ultrasound Surgery (tcMRgFUS): preliminary Italian (and world-first) experience at 1,5 Tesla (first 5 patient treate…

2015

tcMRgFUS functional neurosurgery 1.5T MRISettore MED/27 - NeurochirurgiaSettore MED/37 - NeuroradiologiaSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Trans-cranial MRI-guided Focused Ultrasound Surgery (tcMRgFUS): preliminary Italian (and world-first) experience at 1,5 Tesla.

2015

PURPOSE: We 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…

tcMRgFUS functional neurosurgery 1.5TSettore MED/27 - NeurochirurgiaSettore MED/37 - Neuroradiologia
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Chirurgia trans-cranica mediante ultrasuoni focalizzati ad alta intensità su guida rm: esperienza preliminare a 1,5T (primi 2 casi trattati)

2015

Scopo del Lavoro Presentiamo i risultati preliminari ottenuti con la prima istallazione italiana di un’apparecchiatura per la neurochirurgia funzionale mediante ultrasuoni focalizzati ad alta intensità su guida RM (trans-cranial MRI-guided Focused Ultrasound Surgery, tcMRgFUS); si tratta tra l’altro della prima apparecchiatura tcMRgFUS al mondo mai installata su uno scanner RM da 1,5T. Tale apparecchiatura è attualmente certificata (CE ed FDA) per trattamenti di neurochirurgia funzionale in pazienti con tremore essenziale (Essential Tremor, ET), Parkinson idiopatico (Parkinson Disease, PD) unilaterale prevalentemente tremorigeno e dolore neuropatico (Neuropathic Pain, NP). Materiali e Metod…

tcMRgFUS neurochirurgia funzionale 1.5T
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Chirurgia trans-cranica mediante ultrasuoni focalizzati ad alta intensità su guida RM: esperienza preliminare a 1,5T (prima paziente trattata)

2015

Presentiamo i risultati preliminari ottenuti con la prima istallazione italiana di un’apparecchiatura per la neurochirurgia funzionale mediante ultrasuoni focalizzati ad alta intensità su guida RM (trans-cranial MRI-guided Focused Ultrasound Surgery, tcMRgFUS); si tratta tra l’altro della prima apparecchiatura tcMRgFUS al mondo mai installata su uno scanner RM da 1,5T. Tale apparecchiatura è destinata a trattamenti di neurochirurgia funzionale di pazienti con tremore essenziale (Essential Tremor, ET), Parkinson idiopatico (Parkinson Disease, PD) prevalentemente tremorigeno e dolore neuropatico (Neuropa- thic Pain, NP). Sanno presentati i risultati ottenuti con i primi pazienti sottoposti …

tcMRgFUS neurochirurgia funzionale 1.5T MRISettore MED/37 - NeuroradiologiaSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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POST-THALAMOTOMY NEUROFUNCTIONAL FINDINGS ON PATIENTS TREATED WITH TRANS-CRANIAL MAGNETIC RESONANCE GUIDED FOCUSED ULTRASOUND SURGERY (TCMRGFUS): PRE…

2015

BACKGROUND AND PURPOSE: We present functional connectivity (FC) changes found in the very first patients treated with the first Italian installation of a trans-cranial MRI-guided Focused Ultrasound Surgery (tcMRgFUS) certified system for functional neurosurgery. TcMRgFUS is a promising new technique for non-invasive treatment of neurologic disorders such as Essential Tremor, tremor associated to Parkinson's Disease and Neuropathic Pain. TcMRgFUS is able to focally target and destroy specific regions in the brain through intact skull, by using a high intensity focused ultrasound beam. Resting state functional Magnetic Resonance Imaging (RS-fMRI) analyses focuses on spontaneous low frequency …

tcMRgFUS thalatomy functional connectivity fMRI
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