Three-dimensional brain MRI for DBS patients within ultra-low radiofrequency power limits.
Identifieur interne : 000604 ( PubMed/Corpus ); précédent : 000603; suivant : 000605Three-dimensional brain MRI for DBS patients within ultra-low radiofrequency power limits.
Auteurs : Subhendra N. Sarkar ; Efstathios Papavassiliou ; David B. Hackney ; David C. Alsop ; Ludy C. Shih ; Ananth J. Madhuranthakam ; Reed F. Busse ; Susan La Ruche ; Rafeeque A. BhadeliaSource :
- Movement disorders : official journal of the Movement Disorder Society [ 1531-8257 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- methods : Magnetic Resonance Imaging.
- pathology : Brain, Essential Tremor, Parkinson Disease.
- therapy : Essential Tremor, Parkinson Disease.
- Adult, Aged, Aged, 80 and over, Deep Brain Stimulation, Electrodes, Implanted, Female, Humans, Male, Middle Aged.
Abstract
For patients with deep brain stimulators (DBS), local absorbed radiofrequency (RF) power is unknown and is much higher than what the system estimates. We developed a comprehensive, high-quality brain magnetic resonance imaging (MRI) protocol for DBS patients utilizing three-dimensional (3D) magnetic resonance sequences at very low RF power.
DOI: 10.1002/mds.25808
PubMed: 24442797
Links to Exploration step
pubmed:24442797Le document en format XML
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<author><name sortKey="Sarkar, Subhendra N" sort="Sarkar, Subhendra N" uniqKey="Sarkar S" first="Subhendra N" last="Sarkar">Subhendra N. Sarkar</name>
<affiliation><nlm:affiliation>Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.</nlm:affiliation>
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<author><name sortKey="Papavassiliou, Efstathios" sort="Papavassiliou, Efstathios" uniqKey="Papavassiliou E" first="Efstathios" last="Papavassiliou">Efstathios Papavassiliou</name>
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<author><name sortKey="Hackney, David B" sort="Hackney, David B" uniqKey="Hackney D" first="David B" last="Hackney">David B. Hackney</name>
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<author><name sortKey="Alsop, David C" sort="Alsop, David C" uniqKey="Alsop D" first="David C" last="Alsop">David C. Alsop</name>
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<author><name sortKey="Shih, Ludy C" sort="Shih, Ludy C" uniqKey="Shih L" first="Ludy C" last="Shih">Ludy C. Shih</name>
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<author><name sortKey="Madhuranthakam, Ananth J" sort="Madhuranthakam, Ananth J" uniqKey="Madhuranthakam A" first="Ananth J" last="Madhuranthakam">Ananth J. Madhuranthakam</name>
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<author><name sortKey="Busse, Reed F" sort="Busse, Reed F" uniqKey="Busse R" first="Reed F" last="Busse">Reed F. Busse</name>
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<author><name sortKey="La Ruche, Susan" sort="La Ruche, Susan" uniqKey="La Ruche S" first="Susan" last="La Ruche">Susan La Ruche</name>
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<author><name sortKey="Bhadelia, Rafeeque A" sort="Bhadelia, Rafeeque A" uniqKey="Bhadelia R" first="Rafeeque A" last="Bhadelia">Rafeeque A. Bhadelia</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Three-dimensional brain MRI for DBS patients within ultra-low radiofrequency power limits.</title>
<author><name sortKey="Sarkar, Subhendra N" sort="Sarkar, Subhendra N" uniqKey="Sarkar S" first="Subhendra N" last="Sarkar">Subhendra N. Sarkar</name>
<affiliation><nlm:affiliation>Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.</nlm:affiliation>
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<author><name sortKey="Papavassiliou, Efstathios" sort="Papavassiliou, Efstathios" uniqKey="Papavassiliou E" first="Efstathios" last="Papavassiliou">Efstathios Papavassiliou</name>
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<author><name sortKey="Hackney, David B" sort="Hackney, David B" uniqKey="Hackney D" first="David B" last="Hackney">David B. Hackney</name>
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<author><name sortKey="Alsop, David C" sort="Alsop, David C" uniqKey="Alsop D" first="David C" last="Alsop">David C. Alsop</name>
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<author><name sortKey="Shih, Ludy C" sort="Shih, Ludy C" uniqKey="Shih L" first="Ludy C" last="Shih">Ludy C. Shih</name>
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<author><name sortKey="Madhuranthakam, Ananth J" sort="Madhuranthakam, Ananth J" uniqKey="Madhuranthakam A" first="Ananth J" last="Madhuranthakam">Ananth J. Madhuranthakam</name>
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<author><name sortKey="Busse, Reed F" sort="Busse, Reed F" uniqKey="Busse R" first="Reed F" last="Busse">Reed F. Busse</name>
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<author><name sortKey="La Ruche, Susan" sort="La Ruche, Susan" uniqKey="La Ruche S" first="Susan" last="La Ruche">Susan La Ruche</name>
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<author><name sortKey="Bhadelia, Rafeeque A" sort="Bhadelia, Rafeeque A" uniqKey="Bhadelia R" first="Rafeeque A" last="Bhadelia">Rafeeque A. Bhadelia</name>
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<series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title>
<idno type="eISSN">1531-8257</idno>
<imprint><date when="2014" type="published">2014</date>
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<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Brain (pathology)</term>
<term>Deep Brain Stimulation</term>
<term>Electrodes, Implanted</term>
<term>Essential Tremor (pathology)</term>
<term>Essential Tremor (therapy)</term>
<term>Female</term>
<term>Humans</term>
<term>Magnetic Resonance Imaging (methods)</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Parkinson Disease (pathology)</term>
<term>Parkinson Disease (therapy)</term>
</keywords>
<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Magnetic Resonance Imaging</term>
</keywords>
<keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Brain</term>
<term>Essential Tremor</term>
<term>Parkinson Disease</term>
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<keywords scheme="MESH" qualifier="therapy" xml:lang="en"><term>Essential Tremor</term>
<term>Parkinson Disease</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Deep Brain Stimulation</term>
<term>Electrodes, Implanted</term>
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<term>Humans</term>
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<front><div type="abstract" xml:lang="en">For patients with deep brain stimulators (DBS), local absorbed radiofrequency (RF) power is unknown and is much higher than what the system estimates. We developed a comprehensive, high-quality brain magnetic resonance imaging (MRI) protocol for DBS patients utilizing three-dimensional (3D) magnetic resonance sequences at very low RF power.</div>
</front>
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<pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">24442797</PMID>
<DateCreated><Year>2014</Year>
<Month>04</Month>
<Day>04</Day>
</DateCreated>
<DateCompleted><Year>2014</Year>
<Month>12</Month>
<Day>03</Day>
</DateCompleted>
<Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1531-8257</ISSN>
<JournalIssue CitedMedium="Internet"><Volume>29</Volume>
<Issue>4</Issue>
<PubDate><Year>2014</Year>
<Month>Apr</Month>
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<Title>Movement disorders : official journal of the Movement Disorder Society</Title>
<ISOAbbreviation>Mov. Disord.</ISOAbbreviation>
</Journal>
<ArticleTitle>Three-dimensional brain MRI for DBS patients within ultra-low radiofrequency power limits.</ArticleTitle>
<Pagination><MedlinePgn>546-9</MedlinePgn>
</Pagination>
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<Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">For patients with deep brain stimulators (DBS), local absorbed radiofrequency (RF) power is unknown and is much higher than what the system estimates. We developed a comprehensive, high-quality brain magnetic resonance imaging (MRI) protocol for DBS patients utilizing three-dimensional (3D) magnetic resonance sequences at very low RF power.</AbstractText>
<AbstractText Label="METHODS" NlmCategory="METHODS">Six patients with DBS were imaged (10 sessions) using a transmit/receive head coil at 1.5 Tesla with modified 3D sequences within ultra-low specific absorption rate (SAR) limits (0.1 W/kg) using T2 , fast fluid-attenuated inversion recovery (FLAIR) and T1 -weighted image contrast. Tissue signal and tissue contrast from the low-SAR images were subjectively and objectively compared with routine clinical images of six age-matched controls.</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">Low-SAR images of DBS patients demonstrated tissue contrast comparable to high-SAR images and were of diagnostic quality except for slightly reduced signal.</AbstractText>
<AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">Although preliminary, we demonstrated diagnostic quality brain MRI with optimized, volumetric sequences in DBS patients within very conservative RF safety guidelines offering a greater safety margin.</AbstractText>
<CopyrightInformation>© 2014 International Parkinson and Movement Disorder Society.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Sarkar</LastName>
<ForeName>Subhendra N</ForeName>
<Initials>SN</Initials>
<AffiliationInfo><Affiliation>Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Hackney</LastName>
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<Author ValidYN="Y"><LastName>Busse</LastName>
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<Language>eng</Language>
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<KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Parkinson's disease</Keyword>
<Keyword MajorTopicYN="N">conditional magnetic resonance imaging</Keyword>
<Keyword MajorTopicYN="N">deep brain stimulation</Keyword>
<Keyword MajorTopicYN="N">low specific absorption rate</Keyword>
<Keyword MajorTopicYN="N">radiofrequency heating</Keyword>
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