Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.
Identifieur interne : 001176 ( Main/Exploration ); précédent : 001175; suivant : 001177Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.
Auteurs : Yiming Xiao [Canada] ; Silvain Beriault ; G Bruce Pike ; D Louis CollinsSource :
- Magnetic resonance imaging [ 1873-5894 ] ; 2012.
English descriptors
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Abstract
The subthalamic nucleus (STN) is one of the most common stimulation targets for treating Parkinson's disease using deep brain stimulation (DBS). This procedure requires precise placement of the stimulating electrode. Common practice of DBS implantation utilizes microelectrode recording to locate the sites with the correct electrical response after an initial location estimate based on a universal human brain atlas that is linearly scaled to the patient's anatomy as seen on the preoperative images. However, this often results in prolonged surgical time and possible surgical complications since the small-sized STN is difficult to visualize on conventional magnetic resonance (MR) images and its intersubject variability is not sufficiently considered in the atlas customization. This paper proposes a multicontrast, multiecho MR imaging (MRI) method that directly delineates the STN and other basal ganglia structures through five co-registered image contrasts (T1-weighted navigation image, R2 map, susceptibility-weighted imaging (phase, magnitude and fusion image)) obtained within a clinically acceptable time. The image protocol was optimized through both simulation and in vivo experiments to obtain the best image quality. Taking advantage of the multiple echoes and high readout bandwidths, no interimage registration is required since all images are produced in one acquisition, and image distortion and chemical shift are reduced. This MRI protocol is expected to mitigate some of the shortcomings of the state-of-the-art DBS implantation methods.
DOI: 10.1016/j.mri.2012.02.006
PubMed: 22503090
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.</title><author><name sortKey="Xiao, Yiming" sort="Xiao, Yiming" uniqKey="Xiao Y" first="Yiming" last="Xiao">Yiming Xiao</name><affiliation wicri:level="1"><nlm:affiliation>McConnell Brain Imaging Center, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada H3A 2B4. yiming.xiao@mail.mcgill.ca</nlm:affiliation><country>Canada</country><wicri:regionArea>McConnell Brain Imaging Center, Montreal Neurological Institute and Hospital, Montreal, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Beriault, Silvain" sort="Beriault, Silvain" uniqKey="Beriault S" first="Silvain" last="Beriault">Silvain Beriault</name></author><author><name sortKey="Pike, G Bruce" sort="Pike, G Bruce" uniqKey="Pike G" first="G Bruce" last="Pike">G Bruce Pike</name></author><author><name sortKey="Collins, D Louis" sort="Collins, D Louis" uniqKey="Collins D" first="D Louis" last="Collins">D Louis Collins</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22503090</idno><idno type="pmid">22503090</idno><idno type="doi">10.1016/j.mri.2012.02.006</idno><idno type="wicri:Area/PubMed/Corpus">000A64</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000A64</idno><idno type="wicri:Area/PubMed/Curation">000A64</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000A64</idno><idno type="wicri:Area/PubMed/Checkpoint">000A64</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000A64</idno><idno type="wicri:Area/Ncbi/Merge">001123</idno><idno type="wicri:Area/Ncbi/Curation">001123</idno><idno type="wicri:Area/Ncbi/Checkpoint">001123</idno><idno type="wicri:Area/Main/Merge">001200</idno><idno type="wicri:Area/Main/Curation">001176</idno><idno type="wicri:Area/Main/Exploration">001176</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.</title><author><name sortKey="Xiao, Yiming" sort="Xiao, Yiming" uniqKey="Xiao Y" first="Yiming" last="Xiao">Yiming Xiao</name><affiliation wicri:level="1"><nlm:affiliation>McConnell Brain Imaging Center, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada H3A 2B4. yiming.xiao@mail.mcgill.ca</nlm:affiliation><country>Canada</country><wicri:regionArea>McConnell Brain Imaging Center, Montreal Neurological Institute and Hospital, Montreal, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Beriault, Silvain" sort="Beriault, Silvain" uniqKey="Beriault S" first="Silvain" last="Beriault">Silvain Beriault</name></author><author><name sortKey="Pike, G Bruce" sort="Pike, G Bruce" uniqKey="Pike G" first="G Bruce" last="Pike">G Bruce Pike</name></author><author><name sortKey="Collins, D Louis" sort="Collins, D Louis" uniqKey="Collins D" first="D Louis" last="Collins">D Louis Collins</name></author></analytic><series><title level="j">Magnetic resonance imaging</title><idno type="eISSN">1873-5894</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Algorithms</term><term>Echo-Planar Imaging (methods)</term><term>Female</term><term>Humans</term><term>Image Enhancement (methods)</term><term>Image Interpretation, Computer-Assisted (methods)</term><term>Male</term><term>Middle Aged</term><term>Parkinson Disease (pathology)</term><term>Reproducibility of Results</term><term>Sensitivity and Specificity</term><term>Subthalamic Nucleus (pathology)</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Echo-Planar Imaging</term><term>Image Enhancement</term><term>Image Interpretation, Computer-Assisted</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Parkinson Disease</term><term>Subthalamic Nucleus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Algorithms</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Reproducibility of Results</term><term>Sensitivity and Specificity</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The subthalamic nucleus (STN) is one of the most common stimulation targets for treating Parkinson's disease using deep brain stimulation (DBS). This procedure requires precise placement of the stimulating electrode. Common practice of DBS implantation utilizes microelectrode recording to locate the sites with the correct electrical response after an initial location estimate based on a universal human brain atlas that is linearly scaled to the patient's anatomy as seen on the preoperative images. However, this often results in prolonged surgical time and possible surgical complications since the small-sized STN is difficult to visualize on conventional magnetic resonance (MR) images and its intersubject variability is not sufficiently considered in the atlas customization. This paper proposes a multicontrast, multiecho MR imaging (MRI) method that directly delineates the STN and other basal ganglia structures through five co-registered image contrasts (T1-weighted navigation image, R2 map, susceptibility-weighted imaging (phase, magnitude and fusion image)) obtained within a clinically acceptable time. The image protocol was optimized through both simulation and in vivo experiments to obtain the best image quality. Taking advantage of the multiple echoes and high readout bandwidths, no interimage registration is required since all images are produced in one acquisition, and image distortion and chemical shift are reduced. This MRI protocol is expected to mitigate some of the shortcomings of the state-of-the-art DBS implantation methods.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Beriault, Silvain" sort="Beriault, Silvain" uniqKey="Beriault S" first="Silvain" last="Beriault">Silvain Beriault</name><name sortKey="Collins, D Louis" sort="Collins, D Louis" uniqKey="Collins D" first="D Louis" last="Collins">D Louis Collins</name><name sortKey="Pike, G Bruce" sort="Pike, G Bruce" uniqKey="Pike G" first="G Bruce" last="Pike">G Bruce Pike</name></noCountry><country name="Canada"><noRegion><name sortKey="Xiao, Yiming" sort="Xiao, Yiming" uniqKey="Xiao Y" first="Yiming" last="Xiao">Yiming Xiao</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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