ParkinsonCanadaV1, PubMed, Corpus, bibRecord, 000A64

Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.

Identifieur interne : 000A64 ( PubMed/Corpus ); précédent : 000A63; suivant : 000A65

Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.

Auteurs : Yiming Xiao ; Silvain Beriault ; G Bruce Pike ; D Louis Collins

Source :

Magnetic resonance imaging [ 1873-5894 ] ; 2012.

RBID : pubmed:22503090

English descriptors

KwdEn :
- Adult, Algorithms, Echo-Planar Imaging (methods), Female, Humans, Image Enhancement (methods), Image Interpretation, Computer-Assisted (methods), Male, Middle Aged, Parkinson Disease (pathology), Reproducibility of Results, Sensitivity and Specificity, Subthalamic Nucleus (pathology), Young Adult.
MESH :
- methods : Echo-Planar Imaging, Image Enhancement, Image Interpretation, Computer-Assisted.
- pathology : Parkinson Disease, Subthalamic Nucleus.
- Adult, Algorithms, Female, Humans, Male, Middle Aged, Reproducibility of Results, Sensitivity and Specificity, Young Adult.

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

Links to Exploration step

pubmed:22503090

Le document en format XML

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<author><name sortKey="Xiao, Yiming" sort="Xiao, Yiming" uniqKey="Xiao Y" first="Yiming" last="Xiao">Yiming Xiao</name>
<affiliation><nlm:affiliation>McConnell Brain Imaging Center, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada H3A 2B4. yiming.xiao@mail.mcgill.ca</nlm:affiliation>
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<author><name sortKey="Beriault, Silvain" sort="Beriault, Silvain" uniqKey="Beriault S" first="Silvain" last="Beriault">Silvain Beriault</name>
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<author><name sortKey="Pike, G Bruce" sort="Pike, G Bruce" uniqKey="Pike G" first="G Bruce" last="Pike">G Bruce Pike</name>
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<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>
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	La maladie de Parkinson au Canada (serveur d'exploration)
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La maladie de Parkinson au Canada (serveur d'exploration)

Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.

Multicontrast multiecho FLASH MRI for targeting the subthalamic nucleus.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki