A5066524206- Advanced Neuroimaging Techniques and Applications
- Acute Ischemic Stroke Management
- Advanced MRI Techniques and Applications
- Meningioma and schwannoma management
- Neurofibromatosis and Schwannoma Cases
- Spinal Dysraphism and Malformations
- Cerebrovascular and Carotid Artery Diseases
- Spinal Fractures and Fixation Techniques
- Cerebrospinal fluid and hydrocephalus
- Vascular Malformations Diagnosis and Treatment
- Glioma Diagnosis and Treatment
- Epilepsy research and treatment
- Intracranial Aneurysms: Treatment and Complications
- MRI in cancer diagnosis
- Medical Imaging Techniques and Applications
- Eating Disorders and Behaviors
- Intracerebral and Subarachnoid Hemorrhage Research
- Venous Thromboembolism Diagnosis and Management
- Neurological disorders and treatments
- Neurological and metabolic disorders
- Sarcoma Diagnosis and Treatment
- Neurosurgical Procedures and Complications
- Traumatic Brain Injury and Neurovascular Disturbances
- Medical Imaging and Analysis
- Cerebral Venous Sinus Thrombosis
University of Geneva
2016-2025
University Hospital of Geneva
2015-2024
Deleted Institution
2021-2022
McGill University
2022
Background Direct thromboaspiration has been reported as an effective mechanical treatment for acute ischemic stroke. We aimed to determine whether the angle of interaction between aspiration catheter and clot affects success removal in stroke patients with large vessel occlusion anterior posterior circulation. Methods All treated at our institution by direct a firstline technique January 2016 December 2017 were enrolled study. retrospectively reviewed baseline procedural characteristics,...
<h3>BACKGROUND AND PURPOSE:</h3> SyMRI is a technique developed to perform quantitative MR imaging. Our aim was analyze its potential use for measuring relaxation times of normal components the spine and compare them with values found in literature using relaxometry other techniques. <h3>MATERIALS METHODS:</h3> Thirty-two imaging studies (10 cervical, 5 dorsal, 17 lumbosacral) were included. A modified multiple-dynamic multiple-echo sequence added processed obtain T1 (millisecond), T2 proton...
Recent concerns relating to tissue deposition of gadolinium are favoring the use noncontrast MR imaging whenever possible. The purpose this study was assess necessity contrast for follow-up untreated intracranial meningiomas.One-hundred twenty-two patients (35 men, 87 women) with meningiomas who underwent brain between May 2007 and 2019 in our institution were included retrospective cohort study. We analyzed 132 meningiomas: 73 non-skull base (55%) versus 59 skull (45%), 93 symptomatic (70%)...
Synthetic MR imaging is a method that can produce multiple contrasts from single sequence, as well quantitative maps. Our aim was to determine the feasibility of synthetic image for spine imaging.Thirty-eight patients with clinical indications infectious, degenerative, and neoplastic disease underwent an (11 cervical, 8 dorsal, 19 lumbosacral studies). The SyntAc acquisition time 5 minutes 40 seconds, added usual protocol consisting conventional sagittal T1 TSE, T2 STIR TSE.Synthetic...
Successful direct thromboaspiration (DTA) is related to several factors such as clot consistency, size, and location. It has also been demonstrated recently that the angle of interaction (AOI) formed by aspiration catheter DTA efficacy. The aims this study were three-fold: (a) confirm clinical finding AOI influence efficacy; (b) evaluate what extent varies according differences in consistency size; (c) validate stent retriever thrombectomy an effective rescue treatment after failure presence...
Purpose To assess the influence of perfusion on apparent coefficient diffusion (ADC) maps, contribution b‐value images, and number b‐values needed in prostate cancer detection by diffusion‐weighted imaging (DWI). Materials Methods Patients scheduled for prostatectomy were scanned 3T magnetic resonance (MRI) with DWI based 0‐500‐1000‐1500 s/mm 2 . A monoexponential model was fitted to obtain ADC using multiple b‐values, or without b0 (perfusion‐sensitive 4b‐b0‐500‐1000‐1500 ,...
We report the ultrasound, computerized tomography, positron emission tomography and magnetic resonance imaging findings of a 38-year-old man with biopsy proven solitary neurofibroma spermatic cord. Solitary neurofibromas male genital tract are exceedingly rare benign peripheral nerve sheath neoplasms composed Schwann cells fibroblasts. In contrast to schwannomas they not bound by capsule thus allowing infiltration between fascicles. Although lesions whose potential for malignant degeneration...
Summary Delayed arginine vasopressin deficiency (AVP-D) can present in patients following traumatic brain injury (TBI) and may occur years after the trauma, presenting with nonspecific symptoms. The objective of this case is to highlight importance considering delayed onset AVP-D a history TBI. We report patient who had sustained severe 8 before presented polydipsia, behavioural disorder frequent falls during last 3 months. diagnosis was confirmed by water restriction positive response...
Changes in the brain composition of anorexics could potentially be expected, opening door to new imaging approaches where quantitative and qualitative MRI have a role. Our purpose was investigate anorexia-related dehydration myelin depletion by analyzing T1, T2, T2* relaxation times different structures controls.Thirty-eight anorexic female patients (mean age, 26.2 years; age range, 16.2-48.7 mean BMI, 14.5 kg/m2 ; BMI 10.0-18.4 ) underwent between August 2014 2018. Controls were 16 healthy...
We read with great interest the article published in June by Granberg et al, “Clinical Feasibility of Synthetic MRI Multiple Sclerosis: A Diagnostic and Volumetric Validation Study.”[1][1] At moment, another technique called MR fingerprinting allows quantitative T1, T2, proton density
ABSTRACT: Objectives: Embolic ischemic strokes cause significant mortality and morbidity worldwide. It has been proposed that some of these are due to unstable carotid plaques with intraplaque hemorrhage (IPH) but a low overall degree stenosis. Our aim was test fat-saturated T1-weighted (T1WI) black-blood sequence on MRI for the detection IPH in symptomatic individuals quantify relation between IPH, severity stenoses, brain lesions. Materials Methods: Sixty-two patients were examined by 3T...
Synthetic magnetic resonance imaging (SyMRI) is a novel quantitative and qualitative technique that permits the reconstruction of multiple image contrasts maps from single scan, thereby providing information reducing scan times. The purpose this study to characterize intracranial meningiomas using SyMRI.The included 35 patients with (6 males, 29 females; mean age 61 ± 17 years; range 21-90 years). Using 3T MR scanners, SyMRI was performed in addition conventional FSET2, FLAIR, DWI, T1, T1...