330 results on '"Riffaud, Laurent"'
Search Results
52. Phase I Study of Topotecan in Combination with Concurrent Radiotherapy in Adults with Glioblastoma
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Lesimple, Thierry, Hassel, Mohammed B., Gédouin, Daniel, Seigneuret, Eric, Carsin, Béatrice, Hamlat, Abderrahmane, Riffaud, Laurent, Simon, Hélène, Malhaire, Jean P., and Guégan, Yvon
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- 2003
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53. Hemispheric cerebral gliomas in children with NF1: arguments for a long-term follow-up
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Riffaud, Laurent, Vinchon, Matthieu, Ragragui, Omar, Delestret, Isabelle, Ruchoux, Marie-Madeleine, and Dhellemmes, Patrick
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- 2002
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54. Surgical Phases Detection from Microscope Videos by Combining SVM and HMM
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Lalys, Florent, primary, Riffaud, Laurent, additional, Morandi, Xavier, additional, and Jannin, Pierre, additional
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- 2011
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55. Automatic Phases Recognition in Pituitary Surgeries by Microscope Images Classification
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Lalys, Florent, primary, Riffaud, Laurent, additional, Morandi, Xavier, additional, and Jannin, Pierre, additional
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- 2010
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56. Brain shift is central to the pathogenesis of intracerebral haemorrhage remote from the site of the initial neurosurgical procedure
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Morandi, Xavier, Haegelen, Claire, Henaux, Pierre-Louis, and Riffaud, Laurent
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- 2006
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57. A dynamic theory for hydrocephalus revealing benign intraspinal tumours: Tumoural obstruction of the spinal subarachnoid space reduces total CSF compartment compliance
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Morandi, Xavier, Amlashi, Seyed F.A., and Riffaud, Laurent
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- 2006
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58. Markers of Recurrence and Long-Term Morbidity in Craniopharyngioma: A Systematic Analysis of 171 Patients
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Gautier, Alain, Godbout, Ariane, Grosheny, Catherine, Tejedor, Isabelle, Coudert, Mathieu, Courtillot, Carine, Jublanc, Christel, De Kerdanet, Marc, Poirier, Jean-Yves, Riffaud, Laurent, Sainte-Rose, Christian, Van Effenterre, Remy, Brassier, Gilles, Bonnet, Fabrice, and Touraine, Philippe
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- 2012
59. Pneumosinus dilatans of the sphenoid and visual loss: when should the optic nerve be decompressed?
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Danassegarane, Gilles, primary, Bretonnier, Maxime, additional, Tinois, Julien, additional, Proisy, Maïa, additional, and Riffaud, Laurent, additional
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- 2020
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60. Dysplastic gangliocytoma of the cerebellum (Lhermitte-Duclos disease) presenting as a prenatally heterotopic hamartoma
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Puiseux, Chloé, primary, Bretonnier, Maxime, additional, Proisy, Maia, additional, Chappé, Céline, additional, Denizeau, Philippe, additional, and Riffaud, Laurent, additional
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- 2020
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61. Fusiform dilatation of internal carotid artery after pterional but not subfrontal craniotomy in 6 patients
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Aboukaïs, Rabih, primary, Bretonnier, Maxime, additional, Karnoub, Melodie-Anne, additional, Leclerc, Xavier, additional, Riffaud, Laurent, additional, Lejeune, Jean-Paul, additional, and Vinchon, Matthieu, additional
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- 2020
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62. Different manifestations detected with 68Ga-DOTATOC PET/CT in patients with Von Hippel-Lindau disease: A case report
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Meneret, Pierre, additional, Girard, Antoine, additional, Pagenault, Mael, additional, Riffaud, Laurent, additional, and Palard-Novello, Xavier, additional
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- 2020
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63. Low‐grade epilepsy‐associated neuroepithelial tumours with a prominent oligodendroglioma‐like component: The diagnostic challenges.
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Métais, Alice, Appay, Romain, Pagès, Mélanie, Gallardo, Catherine, Silva, Karen, Siegfried, Aurore, Perbet, Romain, Maurage, Claude‐Alain, Scavarda, Didier, Fina, Frédéric, Uro‐Coste, Emmanuelle, Riffaud, Laurent, Colin, Carole, and Figarella‐Branger, Dominique
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FIBROBLAST growth factor receptors ,MITOGEN-activated protein kinases ,PROTEIN-tyrosine kinases - Abstract
Aims: We searched for recurrent pathological features and molecular alterations in a retrospective series of 72 low‐grade epilepsy‐associated neuroepithelial tumours (LEATs) with a prominent oligodendroglioma‐like component, in order to classify them according to the 2021 World Health Organization (WHO) classification of central nervous system (CNS) tumours. Methods: Centralised pathological examination was performed as well as targeted molecular analysis of v‐Raf murine sarcoma viral oncogene homologue B (BRAF) and fibroblast growth factor receptor 1 (FGFR1) by multiplexed digital polymerase chain reaction (mdPCR). DNA methylation profiling was performed in cases with sufficient DNA. In cases with no genetic alteration by mdPCR and sufficient material, RNA sequencing was done. Results: We first reclassified our cohort into three groups: ganglioglioma (GG, n = 14), dysembryoplastic neuroepithelial tumours (DNTs, n = 19) and glioneuronal tumours/paediatric‐type low‐grade glioma (LGG) not otherwise specified (GNT/PLGG NOS, n = 39). mdPCR found an alteration in 38/72 cases. Subsequent RNA sequencing revealed a fusion transcript involving BRAF, FGFR1/2/3 or neurotrophic tyrosine kinase receptor type 2 [NTRK2] in 9/25 cases. DNA methylation profiling found 12/46 cases with a calibrated score ≥0.9. Unsupervised hierarchical clustering revealed two clusters: Cluster 1 was enriched with cases classified as DNT at histology, belonging to the LGG–DNT methylation class (MC), with haematopoietic progenitor cell antigen (CD34) negativity and FGRF1 alterations; Cluster 2 was enriched with cases classified at histology as GG, belonging to the LGG–GG MC MC, with BRAF V600E mutation and CD34 positivity. The tumours reclassified as GNT/PLGG NOS were equally distributed across both clusters. Interestingly, all polymorphous low‐grade neuroepithelial tumour of the young belonged to Cluster 2, whereas diffuse LGG mitogen‐activated protein kinase (MAPK) pathway‐altered were equally distributed among the two clusters. This led us to build an algorithm to classify LEATs with a prominent oligodendroglioma‐like component. Conclusions: Integrated histomolecular diagnosis of LEATs with a prominent oligodendroglioma‐like component remains challenging. Because these tumours can be split into two major clusters of biological significance, the clinicopathological relevance of the four types recognised by the WHO CNS5 within this spectrum of tumours is questionable. [ABSTRACT FROM AUTHOR]
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- 2022
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64. EXTENSIVE SPINAL CORD INFARCTION AFTER POSTERIOR FOSSA SURGERY IN THE SITTING POSITION: CASE REPORT
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Morandi, Xavier, Riffaud, Laurent, Amlashi, Seyed F.A., and Brassier, Gilles
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- 2004
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65. Papilledema and Spinal Cord Tumor
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Amlashi, Seyed F.A. and Riffaud, Laurent.
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- 2004
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66. Nevoid basal cell carcinoma syndrome: Relation with desmoplastic medulloblastoma in infancy
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Amlashi, Seyed F.A., Riffaud, Laurent, Brassier, Gilles, and Morandi, Xavier
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Infants -- Medical examination ,Infants -- Care and treatment ,Medulloblastoma -- Research ,Basal cell nevus syndrome -- Research ,Health - Published
- 2003
67. DNA methylation in glioblastoma: impact on gene expression and clinical outcome
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Etcheverry, Amandine, Aubry, Marc, de Tayrac, Marie, Vauleon, Elodie, Boniface, Rachel, Guenot, Frederique, Saikali, Stephan, Hamlat, Abderrahmane, Riffaud, Laurent, Menei, Philippe, Quillien, Veronique, and Mosser, Jean
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- 2010
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68. Nontraumatic arteriovenous fistula of the superficial temporal artery
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MORANDI, XAVIER, GODEY, BENOIT, RIFFAUD, LAURENT, and BRASSIER, GILLES
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- 2001
69. Complete cervical tracheal rupture in children after closed trauma
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Feat, Stephane, Clech, Guy Le, Riffaud, Laurent, and Godey, Benoit
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- 2002
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70. Relationships Between Expertise, Crew Familiarity and Surgical Workflow Disruptions: An Observational Study
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Henaux, Pierre‐Louis, primary, Michinov, Estelle, additional, Rochat, Julie, additional, Hémon, Brivael, additional, Jannin, Pierre, additional, and Riffaud, Laurent, additional
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- 2018
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71. Comparison of neurogenic lower urinary tract dysfunctions in open versus closed spinal dysraphism: A prospective cross-sectional study of 318 patients
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Peyronnet, Benoit, primary, Brochard, Charlène, additional, Jezequel, Magali, additional, Hascoet, Juliette, additional, Alimi, Quentin, additional, Senal, Nelly, additional, Carsin-Nicole, Béatrice, additional, Riffaud, Laurent, additional, Le Reste, Pierre-Jean, additional, Bonan, Isabelle, additional, Olivari-Philiponnet, Camille, additional, Siproudhis, Laurent, additional, Kerdraon, Jacques, additional, Game, Xavier, additional, and Manunta, Andrea, additional
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- 2018
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72. Edema of the optic tract in patients with tumors of the sellar region: clinical and visual implications in the pediatric population
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Bussat, Aurore, primary, Proisy, Maia, additional, Bruneau, Bertrand, additional, Bouzillé, Guillaume, additional, Chappé, Céline, additional, and Riffaud, Laurent, additional
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- 2018
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73. Ultrasonography for the diagnosis of craniosynostosis
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Proisy, Maïa, primary, Riffaud, Laurent, additional, Chouklati, Kamal, additional, Tréguier, Catherine, additional, and Bruneau, Bertrand, additional
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- 2017
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74. Recording of cranial and spinal surgical procedures, and analysis of workflows for study of the surgical processes
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Riffaud, Laurent, Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], Université Rennes 1, Xavier Morandi, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Christien, Karine
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[SDV.MHEP.AHA] Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO] ,Neurochirurgie ,[SDV.MHEP.AHA]Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO] ,enseignement technique - Abstract
Analysing the surgical process, understanding the learning of the necessary gestures, how best to prepare them and carry them out, is an ambitious project. Since 2008, we have been working in close collaboration with the Innovation Center Computer Assisted Surgery(ICCAS) of Leipzig University, Germany, and using their tool, the Surgical Workflow Editor, which enables the recording of all the gestures and actions of surgeon, in the form of an action-instrument-target triple. We chose to examine standard surgical procedures, in other words those which were frequently carried out , standardized and short in duration. We therefore made live recordings in the operating theatre of the Neurosurgery Department of University Hospital of Leipzig. These concerned the gestures of surgeons performing spinal surgical procedures (removal of lumbar disc herniation) and cranial procedures (removal of pituitary tumors via transsphenoidal approach). Subsequently, in the same way, similar procedures were recorded in the Neurosurgery Department of the University Hospital of Rennes. Results illustrated the relationship in surgical practice between the surgeon's experience and the manual skills demonstrated in real-life situations. We demonstrated that there exists a real optimization of surgical gestures which develops with the seniority of the surgeons: overall reduction of operating time, reduction of the number of gestures in the most standardized phases particularly with the dominant hand, optimization of non-dominant hand use in the most complex phases., Comprendre le processus chirurgical, c'est à dire comprendre le processus d'apprentissage du geste à réaliser, sa préparation, son exécution et enfin son optimisation est un projet ambitieux. Depuis 2008, nous avons mené une collaboration étroite avec l'Innovation Center Computer Assisted Surgery de l'Université de Leipzig en Allemagne et utilisé leur outil, le "Surgical Workflow Editor" qui permet d'enregistrer en direct toute l'activité gestuelle d'un chirurgien sous la forme d'un triplet action-instrument-cible. Nous avons choisi d'étudier des procédures chirurgicales " simples", c'est-à-dire des procédures fréquentes, standardisées et de courte durée. Nous avons donc enregistré au bloc opératoire du service de Neurochirurgie de l'Hôpital Universitaire de Leipzig l'activité gestuelle des chirurgiens réalisant des procédures chirurgicales rachidienne (exérèse d'une hernie discale lombaire) et crânienne (exérèse d'un adénome hypophysaire par voie transsphénoïdale), puis de la même façon, ces procédures ont été enregistrées dans le service de Neurochirurgie de l'Hôpital Universitaire de Rennes. Les résultats ont montré les relations existant dans la pratique chirurgicale entre l'expérience des chirurgiens et la technique gestuelle dans un contexte de chirurgie réelle. Nous avons pu démontrer qu'il existe une réelle optimisation gestuelle évoluant avec la saniorisation des chirurgiens : économie globale du temps d'intervention, économie du nombre de gestes dans les phases les plus stéréotypées particulièrement avec la main dominante, optimisation de la main non dominante dans les phases les plus complexes.
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- 2012
75. Assessment of surgical skills using Surgical Processes and Dynamic Time Warping
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Forestier, Germain, Lalys, Florent, Riffaud, Laurent, Trelhu, Brivael, Jannin, Pierre, Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Lalys, Florent
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[INFO.INFO-AI] Computer Science [cs]/Artificial Intelligence [cs.AI] ,[SDV.BIBS] Life Sciences [q-bio]/Quantitative Methods [q-bio.QM] ,[INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG] ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,[INFO.INFO-LG] Computer Science [cs]/Machine Learning [cs.LG] ,[INFO.INFO-BI]Computer Science [cs]/Bioinformatics [q-bio.QM] ,[SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM] ,[INFO.INFO-BI] Computer Science [cs]/Bioinformatics [q-bio.QM] ,[INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI] - Abstract
Toward the creation of new computer-assisted intervention systems, Surgical Process Models (SPMs) is an emerging concept used for analyzing and assessing surgical interventions. SPMs represent Surgical Process (SPs) which are formalized as symbolic structured descriptions of surgical interventions, using a pre-defined level of granularity and a dedicated terminology. In this context, an important challenge is the creation of new metrics for the comparison and the evaluation of SPs. Thus, correlations between these metrics and pre-operative data allow to classify surgeries and highlight specific information on the surgery itself and on the surgeon, such as his/her level of expertise. In this paper, we explore the automatic classification of a set of SPs based on the Dynamic Time Warping (DTW) algorithm. DTW allows to compute a distance between two SPs that focuses on the different types of activities performed during surgery and their sequencing, by minimizing time differences. Indeed, it turns out to be a complementary approach to classical methods focusing on the time and the number of activities differences only. Experiments were carried out on 24 lumbar disc herniation surgeries to discriminate the level of expertise of surgeons according to prior classification of SPs. Unsupervised classification experiments have shown that this approach was able to automatically identify groups of surgeons according to their level of expertise (senior and junior), and opens many perspectives for the creation of new metrics for surgeries comparison and evaluation.
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- 2011
76. Analyse de vidéos de microscopes chirurgicaux pour la reconnaissance automatique d'étapes en combinant SVM et HMM
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Lalys, Florent, Riffaud, Laurent, Morandi, Xavier, Jannin, Pierre, Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], INRIA Grenoble Rhône-Alpes, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Sturm, Peter
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[INFO.INFO-CV] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV] ,[INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV] - Abstract
In image-guided surgery, the automatic extraction of information from the Operating Room (OR) has recently gained much interest. In particular, the automatic recognition of surgical phases, or more generally surgical events, allows bringing an additional help to surgeons, for intra or post-operative use. Clinical applications include the creation of post-operative reports, teaching, learning, surgical assessment, optimisation of OR management and of surgeries. In this article, we present a novel approach that focused on the automatic recognition of phases by microscope image analysis, which has never been done before. We used a hybrid method that combines supervised classification to extract binary visual cues and a discrete Hidden Markov Model to take into account the temporal aspect. Our framework was tested on two various datasets, including one specific type of neurosurgical intervention and one type of ophthalmological surgery. Cross-validation studies were carried out to find recognition rates of 90% for the first dataset and 93% for the second one. This will enable the system to be used in clinical applications such as post-operative surgical video indexation., Dans le vaste domaine de la chirurgie guidée par l'image, l'extraction automatique d'informations émanant d'une salle d'opération a récemment été source de nombreuses études. Plus particulièrement, la reconnaissance automatique des étapes, ou plus globalement des événements, d'une procédure chirurgicale pourrait permettre d'apporter une aide intra ou post-opératoire non-négligeable aux chirurgiens. Les applications visées par ces approches sont la création automatique de rapports post-opératoires, l'enseignement, l'évaluation, l'optimisation de la gestion des salles d'opérations ou l'aide au geste chirurgical. Dans cet article, nous proposons une approche qui tend vers la reconnaissance automatique des étapes d'une chirurgie via les vidéos issues des microscopes chirurgicaux, ce qui n'a encore jamais été expérimenté. Notre méthode est basée sur la combinaison d'une classification supervisée permettant d'extraire des attributs propres à chaque chirurgie, et d'une modélisation de séries temporelles par chaine de Markov cachée. Des validations croisées ont été menées sur deux types distincts de chirurgie : une chirurgie du cerveau et une chirurgie ophtalmologique. Des taux de reconnaissance respectifs de 90% et 93% ont ainsi été trouvés, ouvrant la possibilité à de nombreuses applications dans le domaine de la chirurgie guidée par l'image, comme l'indexation de vidéos chirurgicales.
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- 2011
77. Recording of surgical processes: a study comparing senior and junior neurosurgeons during lumbar disc herniation surgery.: Recording of Surgical Processes
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Riffaud, Laurent, Neumuth, Thomas, Morandi, Xavier, Trantakis, Christos, Meixensberger, Jürgen, Burgert, Oliver, Trelhu, Brivael, Jannin, Pierre, Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Innovation Center Computer Assisted Surgery (ICCAS), Universität Leipzig [Leipzig], Department of Neurosurgery [Leipzig], University Hospital Leipzig, and Grosset, Aline
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MESH: Aged ,[SDV.IB] Life Sciences [q-bio]/Bioengineering ,Discectomy ,Surgical workflow ,MESH: Humans ,MESH: Middle Aged ,Surgical process ,MESH: Records as Topic ,education ,MESH: Adult ,MESH: Neurosurgical Procedures ,MESH: Intervertebral Disk Displacement ,MESH: Male ,Surgical practice ,MESH: Lumbar Vertebrae ,Manual activity ,MESH: Young Adult ,MESH: Internship and Residency ,Surgery ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,Skill ,MESH: Clinical Competence ,MESH: Physician's Practice Patterns ,MESH: Female - Abstract
International audience; BACKGROUND: Evaluating surgical practice in the operating room is difficult, and its assessment is largely subjective. OBJECTIVE: Recording of standardized spine surgery processes was conducted to ascertain whether any significant differences in surgical practice could be observed between senior and junior neurosurgeons. METHODS: Twenty-four procedures of lumbar discectomies were consecutively recorded by a senior neurosurgeon. In 12 cases, surgery was entirely performed by a senior neurosurgeon with the aid of a resident, and in the 12 remaining cases, surgery was performed by a resident with the aid of a senior neurosurgeon. The data recorded were general parameters (operating time for the whole procedure and for each step), and general and specific parameters of the surgeon's activities (number of manual gestures, number and duration of actions performed, use of the instruments, and use of interventions on anatomic structures). The Mann-Whitney U test was used for comparison between the 2 groups of neurosurgeons. RESULTS: The operating time was statistically lower for the group of senior surgeons. The seniors statistically demonstrated greater economy in time and in gestures during the closure step, for sewing and for the use of scissors, needle holders, and forceps. The senior surgeons statistically worked for a shorter time on the skin and used fewer manual gestures on the thoracolumbalis fascia. The number of changes in microscope position was also statistically lower for this group. CONCLUSION: There is a relationship between surgical practice, as determined by a method of objective measurement using observation software, and surgical experience: gesture economy evolves with seniority.
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- 2010
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78. Detecting Surgical Tools by Modelling Local Appearance and Global Shape
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Bouget, David, primary, Benenson, Rodrigo, additional, Omran, Mohamed, additional, Riffaud, Laurent, additional, Schiele, Bernt, additional, and Jannin, Pierre, additional
- Published
- 2015
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79. Analyse de données pour la construction de modèles de procédures neurochirurgicales
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Trelhu, Brivael, Lalys, Florent, Riffaud, Laurent, Morandi, Xavier, Jannin, Pierre, Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], Lalys, Florent, CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)
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[SDV.BIBS] Life Sciences [q-bio]/Quantitative Methods [q-bio.QM] ,[INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG] ,[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,[SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,[INFO.INFO-LG] Computer Science [cs]/Machine Learning [cs.LG] ,[INFO.INFO-BI]Computer Science [cs]/Bioinformatics [q-bio.QM] ,[SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM] ,[INFO.INFO-BI] Computer Science [cs]/Bioinformatics [q-bio.QM] - Abstract
National audience; Dans cet article, nous appliquons une méthode d'analyse sur des descriptions de procédures de neurochirurgie dans le but d'en améliorer la compréhension. La base de données XML utilisée dans cette étude est constituée de la description de 157 chirurgies de tumeurs. Trois cent vingt deux variables ont été identifiées et décomposées en variables prédictives (connues avant l'opération) et variables à prédire (décrivant des gestes chirurgicaux). Une analyse factorielle des correspondances (AFC) a été réalisée sur les variables prédictives, ainsi qu'un arbre de décision basé sur un dendrogramme préalablement établi. Six classes principales de variables prédictives ont ainsi été identifiées. Puis, pour chacune de ces classes, une analyse AFC a été réalisée sur les variables à prédire, ainsi qu'un arbre de décision. Bien que le nombre de cas et le choix des variables constituent une limite à cette étude, nous avons réussi à prédire certaines caractéristiques liées aux procédures en partant de données prédictives.
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- 2009
80. Dural plasmacytoma revealing multiple myeloma. Case report.: Dural plasmacytoma revealing multiple myeloma. Case report
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Haegelen, Claire, Riffaud, Laurent, Bernard, Marc, Carsin-Nicol, Béatrice, Morandi, Xavier, Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Télécom Bretagne-Université de Rennes 1 (UR1), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École normale supérieure - Rennes (ENS Rennes)-Université de Bretagne Sud (UBS)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Quentin, Aurore
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[SDV.IB] Life Sciences [q-bio]/Bioengineering ,musculoskeletal diseases ,MESH: Aged ,MESH: Peritonitis ,MESH: Humans ,MESH: Infant, Newborn ,MESH: Adult ,MESH: Amniotic Fluid ,MESH: Biopsy ,MESH: Pregnancy ,MESH: Erythroblastosis, Fetal ,MESH: Bilirubin ,MESH: Cranio ,MESH: Meconium ,MESH: Bone Marrow ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,MESH: Intestinal Perforation ,MESH: Prenatal Diagnosis ,MESH: Colon ,MESH: Diseases in Twins ,MESH: Intestinal Obstruction ,MESH: Female - Abstract
article clinique; The authors describe the case of a 72-year-old woman with dural plasmacytoma revealing an immunoglobulin (Ig) G-kappa multiple myeloma (MM). She presented with headaches and left hemiparesis. Magnetic resonance imaging demonstrated a right frontal extraaxial lesion arising from the dura mater, and biological studies revealed hypercalcemia, hyperproteinemia, and a serum gamma globulin peak. A diagnosis of IgG-kappa MM was based on microscopic examination and immunohistochemical analysis of the dural plasmacytoma as well as on signs of systemic myeloma after surgery. The patient died 3 years after the first symptoms of MM despite systemic chemotherapy and no recurrence of the dural plasmacytoma. Myelomatous involvement of the dura mater is a rare occurrence given that only three cases have been reported to date. Nevertheless, this pathological entity should be differentiated from solitary dural plasmacytoma (SDP) because the prognosis is radically different. Progression seems to be correlated with systemic disease in contrast to the long-term survival associated with SDP. Careful systemic evaluation should be made in such a presentation to rule out MM, which would require different management and has a different prognosis.
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- 2006
81. Communicating hydrocephalus and papilloedema associated with intraspinal tumours: report of four cases and review of the mechanisms
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Riffaud, Laurent, Morandi, Xavier, Amlashi, Seyed, Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Quentin, Aurore
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MESH: Adolescent ,MESH: Aged ,[SDV.IB] Life Sciences [q-bio]/Bioengineering ,MESH: Humans ,MESH: Hydrocephalus ,MESH: Cerebrospinal Fluid Pressure ,MESH: Cerebrovascular Circulation ,MESH: Cervical Vertebrae ,MESH: Glioma ,MESH: Lumbar Vertebrae ,MESH: Astrocytoma ,MESH: Child ,MESH: Brain Neoplasms ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,MESH: Epidural Space ,MESH: Female ,MESH: Intracranial Hypertension ,MESH: Lateral Ventricles - Abstract
article clinique; International audience; Communicating hydrocephalus and/or papilloedema associated with intraspinal tumours is rare. Four such patients are presented in this article. In addition to previous theories put forward to explain this condition, we would like to propose alteration of craniospinal compliance distribution as a possible underlying mechanism. Consequently, we suggest not performing shunt placement immediately if the intraspinal tumour can be removed.
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- 2006
82. Endoscopic third ventriculostomy for the treatment of obstructive hydrocephalus during pregnancy
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Riffaud, Laurent, Ferré, Jean-Christophe, Carsin-Nicol, Béatrice, Morandi, Xavier, Quentin, Aurore, Service de neurochirurgie [Rennes] = Neurosurgery [Rennes], CHU Pontchaillou [Rennes], Vision, Action et Gestion d'informations en Santé (VisAGeS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Télécom Bretagne-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)
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[SDV.IB] Life Sciences [q-bio]/Bioengineering ,MESH: Humans ,MESH: Hydrocephalus ,MESH: Adult ,MESH: Equipment Failure ,MESH: Pregnancy Outcome ,MESH: Seizures ,MESH: Ventriculos ,MESH: Endoscopy ,MESH: Magnetic Resonance Imaging ,MESH: Pregnancy ,MESH: Ventriculoperitoneal Shunt ,MESH: Pregnancy Complications ,MESH: Gestational Age ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,MESH: Female ,MESH: Third Ventricle ,MESH: Treatment Outcome - Abstract
BACKGROUND: Endoscopic third ventriculostomy is an effective procedure for treating obstructive (noncommunicating) hydrocephalus as an alternative to ventricular shunt placement. CASE: Five pregnant women undergoing endoscopic third ventriculostomy as treatment for newly diagnosed acute obstructive hydrocephalus (n=2) or in cases of malfunction of a preexisting ventriculoperitoneal shunt (n=3) are presented. CONCLUSION: Endoscopic third ventriculostomy may be preferred to ventricular shunt placement as the initial mode of treatment for pregnant patients with newly diagnosed obstructive hydrocephalus as well as in cases of malfunction of a preexisting shunt.
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- 2006
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83. Influence of cumulative surgical experience on the outcome of poor-grade patients with ruptured intracranial aneurysm
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Le Reste, Pierre-Jean, primary, Henaux, Pierre-Louis, additional, Riffaud, Laurent, additional, Haegelen, Claire, additional, and Morandi, Xavier, additional
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- 2014
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84. A multi-disciplinary consensus statement concerning surgical approaches to low-grade, high-grade astrocytomas and diffuse intrinsic pontine gliomas in childhood (CPN Paris 2011) using the Delphi method
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Walker, David A., Liu, JoFen, Kieran, Mark, Jabado, Nada, Picton, Susan, Packer, Roger, St. Rose, Christian, Van Meeteren, Antoinette Schouten, Carvalho, Alice, Van Damme, An, Depreitere, Bart, Gustavsson, Bengt, Due Tonnessen, Bernt J, Bertozzi-Salamon, Anne Isabelle, Brentrup, Angela, Raybaud, Charles, Jones, Chris, Dufour, Christelle, Dorfer, Christian, Sainte-Rose, Christian, Malluci, Conor, Hargrave, Darren, Walker, David, Van Vuurden, Dannis, De Carli, Emilie, Bouffet, Eric, Van Calenbergh, Frank, Frappaz, Didier, Frassanito, Paolo, Goodrich, James, Baechli, Heidi, Grill, Jacques, Ternier, Jessica, Cappelen, Johan, Caird, John, Pereira, Josué, Riffaud, Laurent, Baroncini, Marc, Walker, Marion, Ozek, Memet, Nysom, Karsten, Varlet, Pascale, Goodden, John, Bertolini, Patricia, Perilongo, Giorgio, Mercier, Philippe, Grundy, Richard, Kortmann, Rolf Dieter, Pfister, Stefan, Constantini, Shlomi, Sgouros, Spyros, Holm, Stefan, Czech, Thomas, Merchant, Thomas, Stokland, Tore, Ridola, Vita, Vandertop, Peter, Walker, David A., Liu, JoFen, Kieran, Mark, Jabado, Nada, Picton, Susan, Packer, Roger, St. Rose, Christian, Van Meeteren, Antoinette Schouten, Carvalho, Alice, Van Damme, An, Depreitere, Bart, Gustavsson, Bengt, Due Tonnessen, Bernt J, Bertozzi-Salamon, Anne Isabelle, Brentrup, Angela, Raybaud, Charles, Jones, Chris, Dufour, Christelle, Dorfer, Christian, Sainte-Rose, Christian, Malluci, Conor, Hargrave, Darren, Walker, David, Van Vuurden, Dannis, De Carli, Emilie, Bouffet, Eric, Van Calenbergh, Frank, Frappaz, Didier, Frassanito, Paolo, Goodrich, James, Baechli, Heidi, Grill, Jacques, Ternier, Jessica, Cappelen, Johan, Caird, John, Pereira, Josué, Riffaud, Laurent, Baroncini, Marc, Walker, Marion, Ozek, Memet, Nysom, Karsten, Varlet, Pascale, Goodden, John, Bertolini, Patricia, Perilongo, Giorgio, Mercier, Philippe, Grundy, Richard, Kortmann, Rolf Dieter, Pfister, Stefan, Constantini, Shlomi, Sgouros, Spyros, Holm, Stefan, Czech, Thomas, Merchant, Thomas, Stokland, Tore, Ridola, Vita, and Vandertop, Peter
- Abstract
Astrocytic tumors account for 42% of childhood brain tumors, arising in all anatomical regions and associated with neurofibromatosis type 1 (NF1) in 15%. Anatomical site determines the degree and risk of resectability; the more complete resection, the better the survival rates. New biological markers and modern radiotherapy techniques are altering the risk assessments of clinical decisions for tumor resection and biopsy. The increasingly distinct pediatric neuro-oncology multidisciplinary team (PNMDT) is developing a distinct evidence base.
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- 2013
85. Effects of Low-Dose Protocols in Endovascular Treatment of Intracranial Aneurysms: Development of Workflow Task Analysis During Cerebral Endovascular Procedures
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Gentric, Jean Christophe, primary, Jannin, Pierre, additional, Trelhu, Brivael, additional, Riffaud, Laurent, additional, Raoult, Hélène, additional, Ferré, Jean Christophe, additional, and Gauvrit, Jean Yves, additional
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- 2013
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86. Glial heterotopia of the face
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Riffaud, Laurent, Ndikumana, Rémy, Azzis, Olivier, and Cadre, Bernard
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- 2008
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87. Automatic knowledge-based recognition of low-level tasks in ophthalmological procedures
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Lalys, Florent, primary, Bouget, David, additional, Riffaud, Laurent, additional, and Jannin, Pierre, additional
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- 2012
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88. Recording of Surgical Processes: A Study Comparing Senior and Junior Neurosurgeons During Lumbar Disc Herniation Surgery
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Riffaud, Laurent, primary, Neumuth, Thomas, additional, Morandi, Xavier, additional, Trantakis, Christos, additional, Meixensberger, Jürgen, additional, Burgert, Oliver, additional, Trelhu, Brivael, additional, and Jannin, Pierre, additional
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- 2010
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89. Assessment of technical needs for surgical equipment by surgical process models
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Neumuth, Thomas, primary, Trantakis, Christos, additional, Riffaud, Laurent, additional, Strauß, Gero, additional, Meixensberger, Jürgen, additional, and Burgert, Oliver, additional
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- 2009
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90. SPECT and PET analysis of subthalamic stimulation in Parkinson’s disease: analysis using a manual segmentation
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Haegelen, Claire, primary, García-Lorenzo, Daniel, additional, Jeune, Florence, additional, Péron, Julie, additional, Gibaud, Bernard, additional, Riffaud, Laurent, additional, Brassier, Gilles, additional, Barillot, Christian, additional, Vérin, Marc, additional, and Morandi, Xavier, additional
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- 2009
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91. Survival and prognostic factors in a series of adults with medulloblastomas
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Riffaud, Laurent, primary, Saikali, Stephan, additional, Leray, Emmanuelle, additional, Hamlat, Abderrahmane, additional, Haegelen, Claire, additional, Vauleon, Elodie, additional, and Lesimple, Thierry, additional
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- 2009
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92. Diagnosis of childhood astrocytomas
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Hamlat, Abderrahmane, primary, Saikali, Stephan, additional, Diabira, Sylma, additional, Messerer, Mahmoud, additional, and Riffaud, Laurent, additional
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- 2009
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93. Acquired Chiari I Malformation and Syringomyelia after Valveless Lumboperitoneal Shunt in Infancy
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Riffaud, Laurent, primary, Moughty, Carolina, additional, Henaux, Pierre-Louis, additional, Haegelen, Claire, additional, and Morandi, Xavier, additional
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- 2008
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94. Intradiploic growing skull fracture: review of mechanisms and literature.
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Fournier, Luc, Hénaux, Pierre-louis, Haegelen, Claire, Proisy, Maia, and Riffaud, Laurent
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SKULL fractures ,OCCIPITAL bone ,MEDLINE ,NEUROSURGERY ,NEUROSURGEONS - Abstract
Purpose: A rare case of intradiploic growing fracture of the occipital bone is presented. Examination of this case and literature review was carried out to find significant specific features of such a rare condition. Case: A 4-year-old boy was operated on for a huge occipital intradiploic growing skull fracture. His medical history, surgical management, and postoperative course are presented. Literature review: A computer literature search using the Medline database revealed 31 well-documented cases. Conclusions: Special attention must be paid to skull fractures in childhood when occurring near CSF large spaces, especially if ventricle enlargement, suggesting that hydrocephalus is present. Surgeons should evaluate hydrocephalus before treating such lesions in order to improve surgical result and postoperative clinical evolution. [ABSTRACT FROM AUTHOR]
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- 2015
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95. Radiation-induced Spinal Cord Glioma Subsequent to Treatment of Hodgkin’s Disease: Case Report and Review
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Riffaud, Laurent, primary, Bernard, Marc, additional, Lesimple, Thierry, additional, and Morandi, Xavier, additional
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- 2005
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96. Results in the Operative Treatment of Elderly Patients with Spinal Meningiomas
- Author
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Morandi, Xavier, primary, Haegelen, Claire, additional, Riffaud, Laurent, additional, Amlashi, Seyed, additional, Adn, Mahmoudreza, additional, and Brassier, Gilles, additional
- Published
- 2004
- Full Text
- View/download PDF
97. Caudal spinal cord ischemia after lumbar vertebral manipulation
- Author
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Morandi, Xavier, primary, Riffaud, Laurent, additional, Houedakor, Jephte, additional, Amlashi, Seyed F.A, additional, Brassier, Gilles, additional, and Gallien, Philippe, additional
- Published
- 2004
- Full Text
- View/download PDF
98. Ischémie de la moelle spinale caudale après manipulation lombaire
- Author
-
Morandi, Xavier, primary, Riffaud, Laurent, additional, Houedakor, Jephte, additional, Amlashi, Seyed F.A, additional, Brassier, Gilles, additional, and Gallien, Philippe, additional
- Published
- 2004
- Full Text
- View/download PDF
99. Acute Cauda Equina Compression Revealing Hodgkin’s Disease
- Author
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Riffaud, Laurent, primary, Adn, Mahmoudreza, additional, Brassier, Gilles, additional, and Morandi, Xavier, additional
- Published
- 2003
- Full Text
- View/download PDF
100. Hemispheric cerebral gliomas in children with NF1: arguments for a long-term follow-up
- Author
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Riffaud, Laurent, primary, Vinchon, Matthieu, additional, Ragragui, Omar, additional, Delestret, Isabelle, additional, Ruchoux, Marie-Madeleine, additional, and Dhellemmes, Patrick, additional
- Published
- 2001
- Full Text
- View/download PDF
Catalog
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