Heating Induced near Deep Brain Stimulation Lead Electrodes during Magnetic Resonance Imaging with a 3T Transceive Volume Head Coil
Identifieur interne : 000303 ( Pmc/Curation ); précédent : 000302; suivant : 000304Heating Induced near Deep Brain Stimulation Lead Electrodes during Magnetic Resonance Imaging with a 3T Transceive Volume Head Coil
Auteurs : Devashish Shrivastava ; Aviva Abosch ; John Hughes ; Ute Goerke ; Lance Delabarre ; Rachana Visaria ; Noam Harel ; J. Thomas VaughanSource :
- Physics in medicine and biology [ 0031-9155 ] ; 2012.
Abstract
Heating induced near deep brain stimulation (DBS) lead electrodes during MRI with a 3T transceive head coil was measured, modeled, and imaged in three cadaveric porcine heads (mean body weight = 85.47±3.19 kg, mean head weight = 5.78±0.32 kg). The effect of the placement of the extra-cranial portion of the DBS lead on the heating was investigated by looping the extra-cranial lead on the top, side, and back of the head; and placing it parallel to the coil’s longitudinal axial direction. The heating was induced using a 641 s long turbo spin echo sequence with the mean whole head average SAR of 3.16 W/kg. Temperatures were measured using fluoroptic probes at the scalp, first and second electrodes from the distal lead tip, and 6 mm distal from electrode 1 (T6mm). The heating was modeled using the maximum T6mm and imaged using a proton resonance frequency shift based MR thermometry method. Results showed that the heating was significantly reduced when the extra-cranial lead was placed in the longitudinal direction compared to the other placements (peak temperature change = 1.5–3.2 °C vs 5.1–24.7 °C). Thermal modeling and MR thermometry may be used together to determine the heating and improve patient safety online.
Url:
DOI: 10.1088/0031-9155/57/17/5651
PubMed: 22892760
PubMed Central: 3469254
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Thomas Vaughan</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22892760</idno><idno type="pmc">3469254</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3469254</idno><idno type="RBID">PMC:3469254</idno><idno type="doi">10.1088/0031-9155/57/17/5651</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">000303</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000303</idno><idno type="wicri:Area/Pmc/Curation">000303</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000303</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Heating Induced near Deep Brain Stimulation Lead Electrodes during Magnetic Resonance Imaging with a 3T Transceive Volume Head Coil</title><author><name sortKey="Shrivastava, Devashish" sort="Shrivastava, Devashish" uniqKey="Shrivastava D" first="Devashish" last="Shrivastava">Devashish Shrivastava</name></author><author><name sortKey="Abosch, Aviva" sort="Abosch, Aviva" uniqKey="Abosch A" first="Aviva" last="Abosch">Aviva Abosch</name></author><author><name sortKey="Hughes, John" sort="Hughes, John" uniqKey="Hughes J" first="John" last="Hughes">John Hughes</name></author><author><name sortKey="Goerke, Ute" sort="Goerke, Ute" uniqKey="Goerke U" first="Ute" last="Goerke">Ute Goerke</name></author><author><name sortKey="Delabarre, Lance" sort="Delabarre, Lance" uniqKey="Delabarre L" first="Lance" last="Delabarre">Lance Delabarre</name></author><author><name sortKey="Visaria, Rachana" sort="Visaria, Rachana" uniqKey="Visaria R" first="Rachana" last="Visaria">Rachana Visaria</name></author><author><name sortKey="Harel, Noam" sort="Harel, Noam" uniqKey="Harel N" first="Noam" last="Harel">Noam Harel</name></author><author><name sortKey="Vaughan, J Thomas" sort="Vaughan, J Thomas" uniqKey="Vaughan J" first="J. Thomas" last="Vaughan">J. Thomas Vaughan</name></author></analytic><series><title level="j">Physics in medicine and biology</title><idno type="ISSN">0031-9155</idno><idno type="eISSN">1361-6560</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P1">Heating induced near deep brain stimulation (DBS) lead electrodes during MRI with a 3T transceive head coil was measured, modeled, and imaged in three cadaveric porcine heads (mean body weight = 85.47±3.19 kg, mean head weight = 5.78±0.32 kg). The effect of the placement of the extra-cranial portion of the DBS lead on the heating was investigated by looping the extra-cranial lead on the top, side, and back of the head; and placing it parallel to the coil’s longitudinal axial direction. The heating was induced using a 641 s long turbo spin echo sequence with the mean whole head average SAR of 3.16 W/kg. Temperatures were measured using fluoroptic probes at the scalp, first and second electrodes from the distal lead tip, and 6 mm distal from electrode 1 (T<sub>6mm</sub>). The heating was modeled using the maximum T<sub>6mm</sub> and imaged using a proton resonance frequency shift based MR thermometry method. Results showed that the heating was significantly reduced when the extra-cranial lead was placed in the longitudinal direction compared to the other placements (peak temperature change = 1.5–3.2 °C vs 5.1–24.7 °C). Thermal modeling and MR thermometry may be used together to determine the heating and improve patient safety online.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">0401220</journal-id><journal-id journal-id-type="pubmed-jr-id">6459</journal-id><journal-id journal-id-type="nlm-ta">Phys Med Biol</journal-id><journal-id journal-id-type="iso-abbrev">Phys Med Biol</journal-id><journal-title-group><journal-title>Physics in medicine and biology</journal-title></journal-title-group><issn pub-type="ppub">0031-9155</issn><issn pub-type="epub">1361-6560</issn></journal-meta><article-meta><article-id pub-id-type="pmid">22892760</article-id><article-id pub-id-type="pmc">3469254</article-id><article-id pub-id-type="doi">10.1088/0031-9155/57/17/5651</article-id><article-id pub-id-type="manuscript">NIHMS402138</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Heating Induced near Deep Brain Stimulation Lead Electrodes during Magnetic Resonance Imaging with a 3T Transceive Volume Head Coil</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Shrivastava</surname><given-names>Devashish</given-names></name><degrees>Ph.D.</degrees><aff id="A1">Center for Magnetic Resonance Research, University of Minnesota 2021, 6<sup>th</sup> St SE, Minneapolis, MN 55455</aff></contrib><contrib contrib-type="author"><name><surname>Abosch</surname><given-names>Aviva</given-names></name><degrees>M.D., Ph.D.</degrees><aff id="A2">Dept of Neurosurgery, University of Minnesota D-429 Mayo, 420 Delaware Street SE, Minneapolis, MN 55455</aff></contrib><contrib contrib-type="author"><name><surname>Hughes</surname><given-names>John</given-names></name><degrees>PhD</degrees><aff id="A3">Division of Biostatistics, University of Minnesota A460 Mayo, MMC 303, 420 Delaware St SE, Minneapolis, MN 55455</aff></contrib><contrib contrib-type="author"><name><surname>Goerke</surname><given-names>Ute</given-names></name><degrees>Ph.D.</degrees><aff id="A4">Center for Magnetic Resonance Research, University of Minnesota 2021, 6<sup>th</sup> St SE, Minneapolis, MN 55455</aff></contrib><contrib contrib-type="author"><name><surname>DelaBarre</surname><given-names>Lance</given-names></name><degrees>Ph.D.</degrees><aff id="A5">Center for Magnetic Resonance Research, University of Minnesota 2021, 6<sup>th</sup> St SE, Minneapolis, MN 55455</aff></contrib><contrib contrib-type="author"><name><surname>Visaria</surname><given-names>Rachana</given-names></name><degrees>Ph.D.</degrees><aff id="A6">MR Safe Devices LLC 14569 Grand Ave; Suite 168, Burnsville, MN 55306</aff></contrib><contrib contrib-type="author"><name><surname>Harel</surname><given-names>Noam</given-names></name><degrees>Ph.D.</degrees><aff id="A7">Center for Magnetic Resonance Research, University of Minnesota 2021, 6<sup>th</sup> St SE, Minneapolis, MN 55455</aff></contrib><contrib contrib-type="author"><name><surname>Vaughan</surname><given-names>J. Thomas</given-names></name><degrees>Ph.D.</degrees><aff id="A8">Center for Magnetic Resonance Research, University of Minnesota 2021, 6<sup>th</sup> St. SE, Minneapolis, MN 55455, USA</aff></contrib></contrib-group><author-notes><corresp id="cor1"><bold>Corresponding Author:</bold> Devashish Shrivastava, Center for Magnetic Resonance Research, University of Minnesota, 2021, 6<sup>th</sup> St. SE, Minneapolis, MN 55455, USA, Phone: 612 626 2001, FAX: 612 626 2004, <email>dev@cmrr.umn.edu</email></corresp></author-notes><pub-date pub-type="nihms-submitted"><day>31</day><month>8</month><year>2012</year></pub-date><pub-date pub-type="epub"><day>15</day><month>8</month><year>2012</year></pub-date><pub-date pub-type="ppub"><day>7</day><month>9</month><year>2012</year></pub-date><pub-date pub-type="pmc-release"><day>07</day><month>9</month><year>2013</year></pub-date><volume>57</volume><issue>17</issue><fpage>5651</fpage><lpage>5665</lpage><abstract><p id="P1">Heating induced near deep brain stimulation (DBS) lead electrodes during MRI with a 3T transceive head coil was measured, modeled, and imaged in three cadaveric porcine heads (mean body weight = 85.47±3.19 kg, mean head weight = 5.78±0.32 kg). The effect of the placement of the extra-cranial portion of the DBS lead on the heating was investigated by looping the extra-cranial lead on the top, side, and back of the head; and placing it parallel to the coil’s longitudinal axial direction. The heating was induced using a 641 s long turbo spin echo sequence with the mean whole head average SAR of 3.16 W/kg. Temperatures were measured using fluoroptic probes at the scalp, first and second electrodes from the distal lead tip, and 6 mm distal from electrode 1 (T<sub>6mm</sub>). The heating was modeled using the maximum T<sub>6mm</sub> and imaged using a proton resonance frequency shift based MR thermometry method. Results showed that the heating was significantly reduced when the extra-cranial lead was placed in the longitudinal direction compared to the other placements (peak temperature change = 1.5–3.2 °C vs 5.1–24.7 °C). Thermal modeling and MR thermometry may be used together to determine the heating and improve patient safety online.</p></abstract><kwd-group><kwd>MRI</kwd><kwd>Safety</kwd><kwd>DBS</kwd><kwd>Heating</kwd><kwd>3T</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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