ParkinsonCanadaV1, PascalFrancis, Corpus, bibRecord, 000926

Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. Commentary

Identifieur interne : 000926 ( PascalFrancis/Corpus ); précédent : 000925; suivant : 000927

Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. Commentary

Auteurs : Clement Hamani ; Erich O. Richter ; Yuri Andrade-Souza ; William Hutchison ; Jean A. Saint-Cyr ; Andres M. Lozano ; Kim J. Burchiel ; Christopher J. Winfree

Source :

Surgical neurology [ 0090-3019 ] ; 2005.

RBID : Pascal:05-0160220

Descripteurs français

Pascal (Inist)
- Système nerveux pathologie, Chirurgie, Microélectrode, Parkinson maladie, Cartographie, Imagerie RMN, Noyau sousthalamique.

English descriptors

KwdEn :
- Cartography, Microelectrode, Nervous system diseases, Nuclear magnetic resonance imaging, Parkinson disease, Subthalamic nucleus, Surgery.

Abstract

Background: Magnetic resonance imaging (MRI) and microelectrode recording (MER) are commonly used to guide stereotactic procedures on the subthalamic nucleus (STN). Little is known about the correlation between the position of the STN as seen on MRI and that as determined by MER mapping. We compared these in 10 patients with Parkinson's disease. Methods: The position of the STN was determined by intraoperative MER findings and stereotactic axial T2 magnetic resonance images with 2-mm slice thickness. Images were reconstructed in a 3-dimensional workstation. The anterior, posterior, medial, lateral, dorsal, and ventral borders of the STN defined with the MRI were measured relative to the midcommissural point. The location of STN activity during MER was reconstructed relative to the midcommissural point for comparison. Results: Twenty-nine tracks recorded with microelectrodes provided clear spans of STN-like activity in 18 STN nuclei. The coordinates of MER were, in general, within the borders of the STN defined with the MRI. However, when analyzed individually, some of the tracks had STN-like activity outside the borders of the MRI-defined nucleus (mostly <1 mm). Three tracks had STN-like activity recorded between 2 and 3 mm more anterior than the anterior border of the nucleus defined with the MRI. Conclusions: There was a good correlation between MER and the borders of the STN defined in the MRI, except for the anterior-posterior axis, in which MER indicated that the STN extended more anteriorly than as suggested by MRI. This should be taken into account in STN surgery.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0090-3019`
A02	`01`			`@0 SGNRAI`
A03		`1`		`@0 Surg. neurol.`
A05				`@2 63`
A06				`@2 3`
A08	`01`	`1`	`ENG`	`@1 Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. Commentary`
A11	`01`	`1`		`@1 HAMANI (Clement)`
A11	`02`	`1`		`@1 RICHTER (Erich O.)`
A11	`03`	`1`		`@1 ANDRADE-SOUZA (Yuri)`
A11	`04`	`1`		`@1 HUTCHISON (William)`
A11	`05`	`1`		`@1 SAINT-CYR (Jean A.)`
A11	`06`	`1`		`@1 LOZANO (Andres M.)`
A11	`07`	`1`		`@1 BURCHIEL (Kim J.) @9 comment.`
A11	`08`	`1`		`@1 WINFREE (Christopher J.) @9 comment.`
A14	`01`			`@1 Division of Neurosurgery, University of Toronto @2 Toronto, ON M5T 2S8 @3 CAN @Z 1 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut.`
A14	`02`			`@1 Department of Neurosurgery, University of Florida @2 Gainesville, FL 32601 @3 USA @Z 2 aut.`
A14	`03`			`@1 Department of Neurosurgery Oregon Health Sciences University @2 Portland, OR 97201 @3 USA @Z 7 aut. @Z 8 aut.`
A20				`@1 249-253`
A21				`@1 2005`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 16065 @5 354000129368950080`
A44				`@0 0000 @1 © 2005 INIST-CNRS. All rights reserved.`
A45				`@0 17 ref.`
A47	`01`	`1`		`@0 05-0160220`
A60				`@1 P @3 AR @3 CT`
A61				`@0 A`
A64	`01`	`1`		`@0 Surgical neurology`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 Background: Magnetic resonance imaging (MRI) and microelectrode recording (MER) are commonly used to guide stereotactic procedures on the subthalamic nucleus (STN). Little is known about the correlation between the position of the STN as seen on MRI and that as determined by MER mapping. We compared these in 10 patients with Parkinson's disease. Methods: The position of the STN was determined by intraoperative MER findings and stereotactic axial T2 magnetic resonance images with 2-mm slice thickness. Images were reconstructed in a 3-dimensional workstation. The anterior, posterior, medial, lateral, dorsal, and ventral borders of the STN defined with the MRI were measured relative to the midcommissural point. The location of STN activity during MER was reconstructed relative to the midcommissural point for comparison. Results: Twenty-nine tracks recorded with microelectrodes provided clear spans of STN-like activity in 18 STN nuclei. The coordinates of MER were, in general, within the borders of the STN defined with the MRI. However, when analyzed individually, some of the tracks had STN-like activity outside the borders of the MRI-defined nucleus (mostly <1 mm). Three tracks had STN-like activity recorded between 2 and 3 mm more anterior than the anterior border of the nucleus defined with the MRI. Conclusions: There was a good correlation between MER and the borders of the STN defined in the MRI, except for the anterior-posterior axis, in which MER indicated that the STN extended more anteriorly than as suggested by MRI. This should be taken into account in STN surgery.
C02	`01`	`X`		`@0 002B25J`
C03	`01`	`X`	`FRE`	`@0 Système nerveux pathologie @5 01`
C03	`01`	`X`	`ENG`	`@0 Nervous system diseases @5 01`
C03	`01`	`X`	`SPA`	`@0 Sistema nervioso patología @5 01`
C03	`02`	`X`	`FRE`	`@0 Chirurgie @5 02`
C03	`02`	`X`	`ENG`	`@0 Surgery @5 02`
C03	`02`	`X`	`SPA`	`@0 Cirugía @5 02`
C03	`03`	`X`	`FRE`	`@0 Microélectrode @5 03`
C03	`03`	`X`	`ENG`	`@0 Microelectrode @5 03`
C03	`03`	`X`	`SPA`	`@0 Microeléctrodo @5 03`
C03	`04`	`X`	`FRE`	`@0 Parkinson maladie @5 04`
C03	`04`	`X`	`ENG`	`@0 Parkinson disease @5 04`
C03	`04`	`X`	`SPA`	`@0 Parkinson enfermedad @5 04`
C03	`05`	`X`	`FRE`	`@0 Cartographie @5 05`
C03	`05`	`X`	`ENG`	`@0 Cartography @5 05`
C03	`05`	`X`	`SPA`	`@0 Cartografía @5 05`
C03	`06`	`X`	`FRE`	`@0 Imagerie RMN @5 06`
C03	`06`	`X`	`ENG`	`@0 Nuclear magnetic resonance imaging @5 06`
C03	`06`	`X`	`SPA`	`@0 Imaginería RMN @5 06`
C03	`07`	`X`	`FRE`	`@0 Noyau sousthalamique @5 08`
C03	`07`	`X`	`ENG`	`@0 Subthalamic nucleus @5 08`
C03	`07`	`X`	`SPA`	`@0 Núcleo subtalámico @5 08`
C07	`01`	`X`	`FRE`	`@0 Encéphale pathologie @5 37`
C07	`01`	`X`	`ENG`	`@0 Cerebral disorder @5 37`
C07	`01`	`X`	`SPA`	`@0 Encéfalo patología @5 37`
C07	`02`	`X`	`FRE`	`@0 Extrapyramidal syndrome @5 38`
C07	`02`	`X`	`ENG`	`@0 Extrapyramidal syndrome @5 38`
C07	`02`	`X`	`SPA`	`@0 Extrapiramidal síndrome @5 38`
C07	`03`	`X`	`FRE`	`@0 Maladie dégénérative @5 39`
C07	`03`	`X`	`ENG`	`@0 Degenerative disease @5 39`
C07	`03`	`X`	`SPA`	`@0 Enfermedad degenerativa @5 39`
C07	`04`	`X`	`FRE`	`@0 Système nerveux central pathologie @5 40`
C07	`04`	`X`	`ENG`	`@0 Central nervous system disease @5 40`
C07	`04`	`X`	`SPA`	`@0 Sistema nervosio central patología @5 40`
N21				`@1 108`
N44	`01`			`@1 OTO`
N82				`@1 OTO`

Format Inist (serveur)

NO :	PASCAL 05-0160220 INIST
ET :	Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. Commentary
AU :	HAMANI (Clement); RICHTER (Erich O.); ANDRADE-SOUZA (Yuri); HUTCHISON (William); SAINT-CYR (Jean A.); LOZANO (Andres M.); BURCHIEL (Kim J.); WINFREE (Christopher J.)
AF :	Division of Neurosurgery, University of Toronto/Toronto, ON M5T 2S8/Canada (1 aut., 3 aut., 4 aut., 5 aut., 6 aut.); Department of Neurosurgery, University of Florida/Gainesville, FL 32601/Etats-Unis (2 aut.); Department of Neurosurgery Oregon Health Sciences University/Portland, OR 97201/Etats-Unis (7 aut., 8 aut.)
DT :	Publication en série; Article; Commentaire; Niveau analytique
SO :	Surgical neurology; ISSN 0090-3019; Coden SGNRAI; Etats-Unis; Da. 2005; Vol. 63; No. 3; Pp. 249-253; Bibl. 17 ref.
LA :	Anglais
EA :	Background: Magnetic resonance imaging (MRI) and microelectrode recording (MER) are commonly used to guide stereotactic procedures on the subthalamic nucleus (STN). Little is known about the correlation between the position of the STN as seen on MRI and that as determined by MER mapping. We compared these in 10 patients with Parkinson's disease. Methods: The position of the STN was determined by intraoperative MER findings and stereotactic axial T2 magnetic resonance images with 2-mm slice thickness. Images were reconstructed in a 3-dimensional workstation. The anterior, posterior, medial, lateral, dorsal, and ventral borders of the STN defined with the MRI were measured relative to the midcommissural point. The location of STN activity during MER was reconstructed relative to the midcommissural point for comparison. Results: Twenty-nine tracks recorded with microelectrodes provided clear spans of STN-like activity in 18 STN nuclei. The coordinates of MER were, in general, within the borders of the STN defined with the MRI. However, when analyzed individually, some of the tracks had STN-like activity outside the borders of the MRI-defined nucleus (mostly <1 mm). Three tracks had STN-like activity recorded between 2 and 3 mm more anterior than the anterior border of the nucleus defined with the MRI. Conclusions: There was a good correlation between MER and the borders of the STN defined in the MRI, except for the anterior-posterior axis, in which MER indicated that the STN extended more anteriorly than as suggested by MRI. This should be taken into account in STN surgery.
CC :	002B25J
FD :	Système nerveux pathologie; Chirurgie; Microélectrode; Parkinson maladie; Cartographie; Imagerie RMN; Noyau sousthalamique
FG :	Encéphale pathologie; Extrapyramidal syndrome; Maladie dégénérative; Système nerveux central pathologie
ED :	Nervous system diseases; Surgery; Microelectrode; Parkinson disease; Cartography; Nuclear magnetic resonance imaging; Subthalamic nucleus
EG :	Cerebral disorder; Extrapyramidal syndrome; Degenerative disease; Central nervous system disease
SD :	Sistema nervioso patología; Cirugía; Microeléctrodo; Parkinson enfermedad; Cartografía; Imaginería RMN; Núcleo subtalámico
LO :	INIST-16065.354000129368950080
ID :	05-0160220

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Pascal:05-0160220

Le document en format XML

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<front><div type="abstract" xml:lang="en">Background: Magnetic resonance imaging (MRI) and microelectrode recording (MER) are commonly used to guide stereotactic procedures on the subthalamic nucleus (STN). Little is known about the correlation between the position of the STN as seen on MRI and that as determined by MER mapping. We compared these in 10 patients with Parkinson's disease. Methods: The position of the STN was determined by intraoperative MER findings and stereotactic axial T2 magnetic resonance images with 2-mm slice thickness. Images were reconstructed in a 3-dimensional workstation. The anterior, posterior, medial, lateral, dorsal, and ventral borders of the STN defined with the MRI were measured relative to the midcommissural point. The location of STN activity during MER was reconstructed relative to the midcommissural point for comparison. Results: Twenty-nine tracks recorded with microelectrodes provided clear spans of STN-like activity in 18 STN nuclei. The coordinates of MER were, in general, within the borders of the STN defined with the MRI. However, when analyzed individually, some of the tracks had STN-like activity outside the borders of the MRI-defined nucleus (mostly <1 mm). Three tracks had STN-like activity recorded between 2 and 3 mm more anterior than the anterior border of the nucleus defined with the MRI. Conclusions: There was a good correlation between MER and the borders of the STN defined in the MRI, except for the anterior-posterior axis, in which MER indicated that the STN extended more anteriorly than as suggested by MRI. This should be taken into account in STN surgery.</div>
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<fA14 i1="01"><s1>Division of Neurosurgery, University of Toronto</s1>
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<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Department of Neurosurgery, University of Florida</s1>
<s2>Gainesville, FL 32601</s2>
<s3>USA</s3>
<sZ>2 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Department of Neurosurgery Oregon Health Sciences University</s1>
<s2>Portland, OR 97201</s2>
<s3>USA</s3>
<sZ>7 aut.</sZ>
<sZ>8 aut.</sZ>
</fA14>
<fA20><s1>249-253</s1>
</fA20>
<fA21><s1>2005</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>16065</s2>
<s5>354000129368950080</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2005 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>17 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>05-0160220</s0>
</fA47>
<fA60><s1>P</s1>
<s3>AR</s3>
<s3>CT</s3>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Surgical neurology</s0>
</fA64>
<fA66 i1="01"><s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Background: Magnetic resonance imaging (MRI) and microelectrode recording (MER) are commonly used to guide stereotactic procedures on the subthalamic nucleus (STN). Little is known about the correlation between the position of the STN as seen on MRI and that as determined by MER mapping. We compared these in 10 patients with Parkinson's disease. Methods: The position of the STN was determined by intraoperative MER findings and stereotactic axial T2 magnetic resonance images with 2-mm slice thickness. Images were reconstructed in a 3-dimensional workstation. The anterior, posterior, medial, lateral, dorsal, and ventral borders of the STN defined with the MRI were measured relative to the midcommissural point. The location of STN activity during MER was reconstructed relative to the midcommissural point for comparison. Results: Twenty-nine tracks recorded with microelectrodes provided clear spans of STN-like activity in 18 STN nuclei. The coordinates of MER were, in general, within the borders of the STN defined with the MRI. However, when analyzed individually, some of the tracks had STN-like activity outside the borders of the MRI-defined nucleus (mostly <1 mm). Three tracks had STN-like activity recorded between 2 and 3 mm more anterior than the anterior border of the nucleus defined with the MRI. Conclusions: There was a good correlation between MER and the borders of the STN defined in the MRI, except for the anterior-posterior axis, in which MER indicated that the STN extended more anteriorly than as suggested by MRI. This should be taken into account in STN surgery.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>002B25J</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Système nerveux pathologie</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Nervous system diseases</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Sistema nervioso patología</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Chirurgie</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Surgery</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Cirugía</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Microélectrode</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Microelectrode</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Microeléctrodo</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Parkinson maladie</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Parkinson disease</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Parkinson enfermedad</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Cartographie</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Cartography</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Cartografía</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Imagerie RMN</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Nuclear magnetic resonance imaging</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Imaginería RMN</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Noyau sousthalamique</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Subthalamic nucleus</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Núcleo subtalámico</s0>
<s5>08</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Encéphale pathologie</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Cerebral disorder</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Encéfalo patología</s0>
<s5>37</s5>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Extrapyramidal syndrome</s0>
<s5>38</s5>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Extrapyramidal syndrome</s0>
<s5>38</s5>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Extrapiramidal síndrome</s0>
<s5>38</s5>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Maladie dégénérative</s0>
<s5>39</s5>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>Degenerative disease</s0>
<s5>39</s5>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>Enfermedad degenerativa</s0>
<s5>39</s5>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Système nerveux central pathologie</s0>
<s5>40</s5>
</fC07>
<fC07 i1="04" i2="X" l="ENG"><s0>Central nervous system disease</s0>
<s5>40</s5>
</fC07>
<fC07 i1="04" i2="X" l="SPA"><s0>Sistema nervosio central patología</s0>
<s5>40</s5>
</fC07>
<fN21><s1>108</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
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<server><NO>PASCAL 05-0160220 INIST</NO>
<ET>Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. Commentary</ET>
<AU>HAMANI (Clement); RICHTER (Erich O.); ANDRADE-SOUZA (Yuri); HUTCHISON (William); SAINT-CYR (Jean A.); LOZANO (Andres M.); BURCHIEL (Kim J.); WINFREE (Christopher J.)</AU>
<AF>Division of Neurosurgery, University of Toronto/Toronto, ON M5T 2S8/Canada (1 aut., 3 aut., 4 aut., 5 aut., 6 aut.); Department of Neurosurgery, University of Florida/Gainesville, FL 32601/Etats-Unis (2 aut.); Department of Neurosurgery Oregon Health Sciences University/Portland, OR 97201/Etats-Unis (7 aut., 8 aut.)</AF>
<DT>Publication en série; Article; Commentaire; Niveau analytique</DT>
<SO>Surgical neurology; ISSN 0090-3019; Coden SGNRAI; Etats-Unis; Da. 2005; Vol. 63; No. 3; Pp. 249-253; Bibl. 17 ref.</SO>
<LA>Anglais</LA>
<EA>Background: Magnetic resonance imaging (MRI) and microelectrode recording (MER) are commonly used to guide stereotactic procedures on the subthalamic nucleus (STN). Little is known about the correlation between the position of the STN as seen on MRI and that as determined by MER mapping. We compared these in 10 patients with Parkinson's disease. Methods: The position of the STN was determined by intraoperative MER findings and stereotactic axial T2 magnetic resonance images with 2-mm slice thickness. Images were reconstructed in a 3-dimensional workstation. The anterior, posterior, medial, lateral, dorsal, and ventral borders of the STN defined with the MRI were measured relative to the midcommissural point. The location of STN activity during MER was reconstructed relative to the midcommissural point for comparison. Results: Twenty-nine tracks recorded with microelectrodes provided clear spans of STN-like activity in 18 STN nuclei. The coordinates of MER were, in general, within the borders of the STN defined with the MRI. However, when analyzed individually, some of the tracks had STN-like activity outside the borders of the MRI-defined nucleus (mostly <1 mm). Three tracks had STN-like activity recorded between 2 and 3 mm more anterior than the anterior border of the nucleus defined with the MRI. Conclusions: There was a good correlation between MER and the borders of the STN defined in the MRI, except for the anterior-posterior axis, in which MER indicated that the STN extended more anteriorly than as suggested by MRI. This should be taken into account in STN surgery.</EA>
<CC>002B25J</CC>
<FD>Système nerveux pathologie; Chirurgie; Microélectrode; Parkinson maladie; Cartographie; Imagerie RMN; Noyau sousthalamique</FD>
<FG>Encéphale pathologie; Extrapyramidal syndrome; Maladie dégénérative; Système nerveux central pathologie</FG>
<ED>Nervous system diseases; Surgery; Microelectrode; Parkinson disease; Cartography; Nuclear magnetic resonance imaging; Subthalamic nucleus</ED>
<EG>Cerebral disorder; Extrapyramidal syndrome; Degenerative disease; Central nervous system disease</EG>
<SD>Sistema nervioso patología; Cirugía; Microeléctrodo; Parkinson enfermedad; Cartografía; Imaginería RMN; Núcleo subtalámico</SD>
<LO>INIST-16065.354000129368950080</LO>
<ID>05-0160220</ID>
</server>
</inist>
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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)

Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. Commentary

Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. Commentary

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