Augustin Lecler
A5043370043- Cerebral Venous Sinus Thrombosis
- Acute Ischemic Stroke Management
- Multiple Sclerosis Research Studies
- Cerebrovascular and Carotid Artery Diseases
- Retinal and Optic Conditions
- Vasculitis and related conditions
- Radiomics and Machine Learning in Medical Imaging
- MRI in cancer diagnosis
- Meningioma and schwannoma management
- Ocular Diseases and Behçet’s Syndrome
- IgG4-Related and Inflammatory Diseases
- Systemic Lupus Erythematosus Research
- Venous Thromboembolism Diagnosis and Management
- Traumatic Brain Injury and Neurovascular Disturbances
- Ophthalmology and Eye Disorders
- Vascular Malformations Diagnosis and Treatment
- Advanced MRI Techniques and Applications
- Ocular Oncology and Treatments
- Ultrasound Imaging and Elastography
- Peripheral Neuropathies and Disorders
- Intracranial Aneurysms: Treatment and Complications
- Intracerebral and Subarachnoid Hemorrhage Research
- Long-Term Effects of COVID-19
- Advanced Neuroimaging Techniques and Applications
- Fetal and Pediatric Neurological Disorders
Fondation Ophtalmologique Adolphe de Rothschild
2016-2025
Université Paris Cité
2012-2025
Fondation de Rothschild
2015-2025
Sorbonne Paris Cité
2012-2025
Laboratoire de Mathématiques de l'INSA de Rouen
2022-2024
Université de Rouen Normandie
2022-2024
Laboratoire de Mathématiques
2022-2024
Institut National des Sciences Appliquées Rouen Normandie
2022-2024
Société Française de Cardiologie
2023
Paris Cardiovascular Research Center
2016-2022
Background Brain MRI parenchymal signal abnormalities have been associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Purpose To describe the neuroimaging findings (excluding ischemic infarcts) in patients disease 2019 (COVID-19) infection. Materials and Methods This was a retrospective study of evaluated from March 23, 2020, to April 27, at 16 hospitals. Inclusion criteria were (a) positive nasopharyngeal or lower tract reverse transcriptase polymerase chain reaction...
To describe neuroimaging findings and to report the epidemiologic clinical characteristics of patients with coronavirus disease 2019 (COVID-19) neurologic manifestations.In this retrospective multicenter study (11 hospitals), we included 64 confirmed COVID-19 manifestations who underwent a brain MRI.The cohort 43 men (67%) 21 women (33%); their median age was 66 (range 20-92) years. Thirty-six (56%) MRIs were considered abnormal, possibly related severe acute respiratory syndrome...
Objectives To assess the influence of gray-level discretization on inter- and intra-observer reproducibility texture radiomics features clinical MR images. Materials methods We studied two independent MRI datasets 74 lacrymal gland tumors 30 breast lesions from different centers. Two pairs readers performed three two-dimensional delineations for each dataset. Texture were extracted using softwares (Pyradiomics an in-house software). Reproducible selected a combination intra-class correlation...
<h3>BACKGROUND AND PURPOSE:</h3> The differential diagnosis of acute cervical pain includes nonvascular and vascular causes such as carotid dissection, occlusion, or vasculitis. However, some patients present with unclassified perivascular changes on imaging previously reported carotidynia. aim our study was to improve the description this yet clinico-radiologic entity. <h3>MATERIALS METHODS:</h3> From January 2009 through April 2016, 47 from 10 centers presenting neck tenderness at least 1...
Abstract To evaluate the relative contribution of different Magnetic Resonance Imaging (MRI) sequences for extraction radiomics features in a cohort patients with lacrimal gland tumors. This prospective study was approved by Institutional Review Board and signed informed consent obtained from all participants. From December 2015 to April 2017, 37 lesions underwent MRI before surgery, including axial T1-WI, Diffusion-WI, coronal DIXON-T2-WI post-contrast DIXON-T1-WI. Two readers manually...
Procedural complications in thrombectomy for large vessel occlusions of the anterior circulation are not well described. We investigated incidence, risk factors, and clinical implications daily practice.We used data from ongoing prospective multicenter observational Endovascular Treatment Ischemic Stroke Registry France. The present study is a retrospective analysis 4029 stroke patients with treated between January 2015 May 2020 18 centers. systematically collected procedural data, incidence...
Background and Purpose— We aimed to study the intrarater interrater agreement of clinicians attributing DWI-ASPECTS (Diffusion-Weighted Imaging–Alberta Stroke Program Early Computed Tomography Scores) DWI-FLAIR Imaging–Fluid Attenuated Inversion Recovery) mismatch in patients with acute ischemic stroke referred for mechanical thrombectomy. Methods— Eighteen raters independently scored anonymized magnetic resonance imaging scans 30 participants from a multicentre thrombectomy trial, 2...
Background: The Transient Perivascular Inflammation of the Carotid artery (TIPIC) syndrome is presumably a very rare disease characterized by local transient inflammation tissue around carotid artery. Its pathophysiology remains unknown. We performed an updated study TIPIC cases in setting multinational collaborative study. Methods: This was conducted as observational retrospective individual patient level cohort Information from all known diagnosed with literature (2005-2020) collected...
<h3>BACKGROUND AND PURPOSE:</h3> Leptomeningeal enhancement can be found in a variety of neurologic diseases such as Susac Syndrome. Our aim was to assess its prevalence and significance leptomeningeal syndrome using 3T postcontrast fluid-attenuated inversion recovery MR imaging. <h3>MATERIALS METHODS:</h3> From January 2011 December 2017, nine consecutive patients with control group 73 multiple sclerosis or clinically isolated were included. Two neuroradiologists blinded the clinical...