Non-supervised spatio-temporal analysis of interictal magnetic spikes: comparison with intracerebral recordings
Objective: Our main goal was to evaluate the accuracy of an original non-supervised spatio-temporal magnetoencephalography (MEG) localization method used to characterize interictal spikes generators. Methods: MEG and stereotactic intracerebral recordings (stereo-electro-encephalographic exploration,...
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| Veröffentlicht in: | Clinical neurophysiology 2003-03, Vol.114 (3), p.438-449 |
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| container_title | Clinical neurophysiology |
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| creator | Schwartz, D.P. Badier, J.-M. Vignal, J.-P. Toulouse, P. Scarabin, J.-M. Chauvel, P. |
| description | Objective: Our main goal was to evaluate the accuracy of an original non-supervised spatio-temporal magnetoencephalography (MEG) localization method used to characterize interictal spikes generators.
Methods: MEG and stereotactic intracerebral recordings (stereo-electro-encephalographic exploration, SEEG) data were analyzed independently in 4 patients. MEG localizations were performed with and without anatomical constraints.
Results: We analyzed 1326 interictal spikes recorded using MEG. For each patient, 2–3 typical source patterns were described. These source configurations were compared with SEEG. SEEG findings and MEG spatio-temporal localization results were remarkably coherent in our 4 patients. Most of the MEG patterns were similar to interictal SEEG patterns from a spatio-temporal point of view.
Conclusions: We were able to evaluate the usefulness of our non-invasive localization method. This approach described correctly the part of the epileptogenic network involved in the generation of interictal events. Our results demonstrate the potential of MEG in the non-invasive spatio-temporal characterization of generators of interictal spikes. |
| doi_str_mv | 10.1016/S1388-2457(02)00413-3 |
| format | Article |
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Methods: MEG and stereotactic intracerebral recordings (stereo-electro-encephalographic exploration, SEEG) data were analyzed independently in 4 patients. MEG localizations were performed with and without anatomical constraints.
Results: We analyzed 1326 interictal spikes recorded using MEG. For each patient, 2–3 typical source patterns were described. These source configurations were compared with SEEG. SEEG findings and MEG spatio-temporal localization results were remarkably coherent in our 4 patients. Most of the MEG patterns were similar to interictal SEEG patterns from a spatio-temporal point of view.
Conclusions: We were able to evaluate the usefulness of our non-invasive localization method. This approach described correctly the part of the epileptogenic network involved in the generation of interictal events. Our results demonstrate the potential of MEG in the non-invasive spatio-temporal characterization of generators of interictal spikes.</description><identifier>ISSN: 1388-2457</identifier><identifier>EISSN: 1872-8952</identifier><identifier>DOI: 10.1016/S1388-2457(02)00413-3</identifier><identifier>PMID: 12705424</identifier><language>eng</language><publisher>Shannon: Elsevier Ireland Ltd</publisher><subject>Adolescent ; Adult ; Anatomical constraint ; Biological and medical sciences ; Electrodes, Implanted ; Electroencephalography - methods ; Epilepsy ; Epilepsy - diagnosis ; Evaluation Studies as Topic ; Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy ; Humans ; Intracerebral recording ; Magnetoencephalography ; Magnetoencephalography - methods ; Medical sciences ; Models, Neurological ; Nervous system (semeiology, syndromes) ; Neurology ; Spatio-temporal localization ; Stereotaxic Techniques</subject><ispartof>Clinical neurophysiology, 2003-03, Vol.114 (3), p.438-449</ispartof><rights>2003 Elsevier Science Ireland Ltd</rights><rights>2003 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-8ef8133c04dbd2de1e67eb29d3c84fab1b616921ea83e06a458176587a0672073</citedby><cites>FETCH-LOGICAL-c391t-8ef8133c04dbd2de1e67eb29d3c84fab1b616921ea83e06a458176587a0672073</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1388245702004133$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14525411$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12705424$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Schwartz, D.P.</creatorcontrib><creatorcontrib>Badier, J.-M.</creatorcontrib><creatorcontrib>Vignal, J.-P.</creatorcontrib><creatorcontrib>Toulouse, P.</creatorcontrib><creatorcontrib>Scarabin, J.-M.</creatorcontrib><creatorcontrib>Chauvel, P.</creatorcontrib><title>Non-supervised spatio-temporal analysis of interictal magnetic spikes: comparison with intracerebral recordings</title><title>Clinical neurophysiology</title><addtitle>Clin Neurophysiol</addtitle><description>Objective: Our main goal was to evaluate the accuracy of an original non-supervised spatio-temporal magnetoencephalography (MEG) localization method used to characterize interictal spikes generators.
Methods: MEG and stereotactic intracerebral recordings (stereo-electro-encephalographic exploration, SEEG) data were analyzed independently in 4 patients. MEG localizations were performed with and without anatomical constraints.
Results: We analyzed 1326 interictal spikes recorded using MEG. For each patient, 2–3 typical source patterns were described. These source configurations were compared with SEEG. SEEG findings and MEG spatio-temporal localization results were remarkably coherent in our 4 patients. Most of the MEG patterns were similar to interictal SEEG patterns from a spatio-temporal point of view.
Conclusions: We were able to evaluate the usefulness of our non-invasive localization method. This approach described correctly the part of the epileptogenic network involved in the generation of interictal events. Our results demonstrate the potential of MEG in the non-invasive spatio-temporal characterization of generators of interictal spikes.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Anatomical constraint</subject><subject>Biological and medical sciences</subject><subject>Electrodes, Implanted</subject><subject>Electroencephalography - methods</subject><subject>Epilepsy</subject><subject>Epilepsy - diagnosis</subject><subject>Evaluation Studies as Topic</subject><subject>Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy</subject><subject>Humans</subject><subject>Intracerebral recording</subject><subject>Magnetoencephalography</subject><subject>Magnetoencephalography - methods</subject><subject>Medical sciences</subject><subject>Models, Neurological</subject><subject>Nervous system (semeiology, syndromes)</subject><subject>Neurology</subject><subject>Spatio-temporal localization</subject><subject>Stereotaxic Techniques</subject><issn>1388-2457</issn><issn>1872-8952</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0E1vFSEUgGFibGyt_gTNbDS6GOVz4LoxplHbpNGFuiYMnKnoDIwcbk3_vdze23TpCkKeA-Ql5Bmjbxhlw9tvTBjTc6n0K8pfUyqZ6MUDcsKM5r3ZKP6w7e_IMXmM-ItSqqnkj8gx45oqyeUJyV9y6nG7QrmOCKHD1dWY-wrLmoubO5fcfIMRuzx1MVUo0dd2vLirBDX65uNvwHedz8vqSsScur-x_tzZ4jwUGHe3FPC5hJiu8Ak5mtyM8PSwnpIfnz5-PzvvL79-vjj7cNl7sWG1NzAZJoSnMoyBB2AwaBj5Jghv5ORGNg5s2HAGzgigg5PKMD0oox0dNKdanJKX-3vXkv9sAatdInqYZ5cgb9FqwQUTyjSo9tCXjFhgsmuJiys3llG7K21vS9tdRku5vS1tRZt7fnhgOy4Q7qcOaRt4cQAOvZun4pKPeO-k4koy1tz7vYOW4zpCsegjJA8htmzVhhz_85V_zluctg</recordid><startdate>20030301</startdate><enddate>20030301</enddate><creator>Schwartz, D.P.</creator><creator>Badier, J.-M.</creator><creator>Vignal, J.-P.</creator><creator>Toulouse, P.</creator><creator>Scarabin, J.-M.</creator><creator>Chauvel, P.</creator><general>Elsevier Ireland Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20030301</creationdate><title>Non-supervised spatio-temporal analysis of interictal magnetic spikes: comparison with intracerebral recordings</title><author>Schwartz, D.P. ; Badier, J.-M. ; Vignal, J.-P. ; Toulouse, P. ; Scarabin, J.-M. ; Chauvel, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-8ef8133c04dbd2de1e67eb29d3c84fab1b616921ea83e06a458176587a0672073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Anatomical constraint</topic><topic>Biological and medical sciences</topic><topic>Electrodes, Implanted</topic><topic>Electroencephalography - methods</topic><topic>Epilepsy</topic><topic>Epilepsy - diagnosis</topic><topic>Evaluation Studies as Topic</topic><topic>Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy</topic><topic>Humans</topic><topic>Intracerebral recording</topic><topic>Magnetoencephalography</topic><topic>Magnetoencephalography - methods</topic><topic>Medical sciences</topic><topic>Models, Neurological</topic><topic>Nervous system (semeiology, syndromes)</topic><topic>Neurology</topic><topic>Spatio-temporal localization</topic><topic>Stereotaxic Techniques</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schwartz, D.P.</creatorcontrib><creatorcontrib>Badier, J.-M.</creatorcontrib><creatorcontrib>Vignal, J.-P.</creatorcontrib><creatorcontrib>Toulouse, P.</creatorcontrib><creatorcontrib>Scarabin, J.-M.</creatorcontrib><creatorcontrib>Chauvel, P.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical neurophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schwartz, D.P.</au><au>Badier, J.-M.</au><au>Vignal, J.-P.</au><au>Toulouse, P.</au><au>Scarabin, J.-M.</au><au>Chauvel, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Non-supervised spatio-temporal analysis of interictal magnetic spikes: comparison with intracerebral recordings</atitle><jtitle>Clinical neurophysiology</jtitle><addtitle>Clin Neurophysiol</addtitle><date>2003-03-01</date><risdate>2003</risdate><volume>114</volume><issue>3</issue><spage>438</spage><epage>449</epage><pages>438-449</pages><issn>1388-2457</issn><eissn>1872-8952</eissn><abstract>Objective: Our main goal was to evaluate the accuracy of an original non-supervised spatio-temporal magnetoencephalography (MEG) localization method used to characterize interictal spikes generators.
Methods: MEG and stereotactic intracerebral recordings (stereo-electro-encephalographic exploration, SEEG) data were analyzed independently in 4 patients. MEG localizations were performed with and without anatomical constraints.
Results: We analyzed 1326 interictal spikes recorded using MEG. For each patient, 2–3 typical source patterns were described. These source configurations were compared with SEEG. SEEG findings and MEG spatio-temporal localization results were remarkably coherent in our 4 patients. Most of the MEG patterns were similar to interictal SEEG patterns from a spatio-temporal point of view.
Conclusions: We were able to evaluate the usefulness of our non-invasive localization method. This approach described correctly the part of the epileptogenic network involved in the generation of interictal events. Our results demonstrate the potential of MEG in the non-invasive spatio-temporal characterization of generators of interictal spikes.</abstract><cop>Shannon</cop><pub>Elsevier Ireland Ltd</pub><pmid>12705424</pmid><doi>10.1016/S1388-2457(02)00413-3</doi><tpages>12</tpages></addata></record> |
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| subjects | Adolescent Adult Anatomical constraint Biological and medical sciences Electrodes, Implanted Electroencephalography - methods Epilepsy Epilepsy - diagnosis Evaluation Studies as Topic Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy Humans Intracerebral recording Magnetoencephalography Magnetoencephalography - methods Medical sciences Models, Neurological Nervous system (semeiology, syndromes) Neurology Spatio-temporal localization Stereotaxic Techniques |
| title | Non-supervised spatio-temporal analysis of interictal magnetic spikes: comparison with intracerebral recordings |
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