Comparison of two techniques to postoperatively localize the electrode contacts used for subthalamic nucleus stimulation. Commentary
Identifieur interne : 000A59 ( PascalFrancis/Corpus ); précédent : 000A58; suivant : 000A60Comparison of two techniques to postoperatively localize the electrode contacts used for subthalamic nucleus stimulation. Commentary
Auteurs : Serge Pinto ; Jean-Francois Le Bas ; Laura Castana ; Paul Krack ; Pierre Pollak ; Alim-Louis Benabid ; Angelo Franzini ; Giovanni Broggi ; Philip Starr ; Marwan I. Hariz ; Roy A. E. BakaySource :
- Neurosurgery [ 0148-396X ] ; 2007.
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- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
OBJECTIVE: Cerebral ventriculography (Vg) and magnetic resonance imaging (MRI) scanning are routine procedures to determine the implanted electrode placement into the subthalamic nucleus (STN) and are used in several centers that provide deep brain stimulation for Parkinson's disease patients. However, because of image distortion, MRI scan accuracy in determining electrode placement is still matter of debate. The objectives of this study were to verify the expected localization of the electrode contacts within the STN and to compare the stereotactic coordinates of these contacts determined intraoperatively byVg with those calculated postoperatively by MRI scans. To our knowledge, this is the first study attempting to compare the "gold standard" of stereotactic accuracy (Vg) with the anatomic resolution provided by MRI scans. METHODS: Images from 18 patients with Parkinson's disease who underwent bilateral operation were used in this study. Among the 36 chronically stimulated contacts, 28 contacts (78%) were localized in the dorsolateral part of the STN. The remaining eight contacts (22%) were located more dorsally in the zona incerta, close to the upper border of the STN. RESULTS: Significant differences were found between Vg and MRI scans regarding the mediolateral x coordinate of the contacts for both left and right electrodes and regarding the right-sided anteroposterior y coordinate. No statistical difference was found for the left-sided y coordinate and the dorsoventral z coordinate for both sides. CONCLUSION: If we assume thatVg is an imaging gold standard, our results suggest that postoperative MRI scanning may induce a slight image translation compared with Vg. However, MRI scans allowed localization of most of the contacts within the STN.
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NO : | PASCAL 07-0179682 INIST |
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ET : | Comparison of two techniques to postoperatively localize the electrode contacts used for subthalamic nucleus stimulation. Commentary |
AU : | PINTO (Serge); LE BAS (Jean-Francois); CASTANA (Laura); KRACK (Paul); POLLAK (Pierre); BENABID (Alim-Louis); FRANZINI (Angelo); BROGGI (Giovanni); STARR (Philip); HARIZ (Marwan I.); BAKAY (Roy A. E.) |
AF : | Department of Neurology, Centre Hospitaller Universitaire de Grenoble, and INSEKMU318, Neurosciences Precliniques/Grenoble/France (1 aut., 4 aut., 5 aut.); Unité IRM, Centre Hospitaller Universitaire de Grenoble, and INSERM U594, Neuro-imagerie Fonctionnelle el Métaholique/Grenoble/France (2 aut.); Ospedale Niguarda/Milan/Italie (3 aut.); Department of Neurosurgery, Centre Hospitalier Universilaire de Grenoble, and INSERM U318, Neurosciences Precliniqucs/Grenoble/France (3 aut., 6 aut.) |
DT : | Publication en série; Article; Commentaire; Niveau analytique |
SO : | Neurosurgery; ISSN 0148-396X; Coden NRSRDY; Etats-Unis; Da. 2007; Vol. 60; No. 4 SUP; Pp. 285-294; Bibl. 51 ref. |
LA : | Anglais |
EA : | OBJECTIVE: Cerebral ventriculography (Vg) and magnetic resonance imaging (MRI) scanning are routine procedures to determine the implanted electrode placement into the subthalamic nucleus (STN) and are used in several centers that provide deep brain stimulation for Parkinson's disease patients. However, because of image distortion, MRI scan accuracy in determining electrode placement is still matter of debate. The objectives of this study were to verify the expected localization of the electrode contacts within the STN and to compare the stereotactic coordinates of these contacts determined intraoperatively byVg with those calculated postoperatively by MRI scans. To our knowledge, this is the first study attempting to compare the "gold standard" of stereotactic accuracy (Vg) with the anatomic resolution provided by MRI scans. METHODS: Images from 18 patients with Parkinson's disease who underwent bilateral operation were used in this study. Among the 36 chronically stimulated contacts, 28 contacts (78%) were localized in the dorsolateral part of the STN. The remaining eight contacts (22%) were located more dorsally in the zona incerta, close to the upper border of the STN. RESULTS: Significant differences were found between Vg and MRI scans regarding the mediolateral x coordinate of the contacts for both left and right electrodes and regarding the right-sided anteroposterior y coordinate. No statistical difference was found for the left-sided y coordinate and the dorsoventral z coordinate for both sides. CONCLUSION: If we assume thatVg is an imaging gold standard, our results suggest that postoperative MRI scanning may induce a slight image translation compared with Vg. However, MRI scans allowed localization of most of the contacts within the STN. |
CC : | 002B25J |
FD : | Système nerveux pathologie; Parkinson maladie; Chirurgie; Etude comparative; Noyau sousthalamique; Ventriculographie; Imagerie RMN |
FG : | Encéphale pathologie; Extrapyramidal syndrome; Maladie dégénérative; Système nerveux central pathologie |
ED : | Nervous system diseases; Parkinson disease; Surgery; Comparative study; Subthalamic nucleus; Ventriculography; Nuclear magnetic resonance imaging |
EG : | Cerebral disorder; Extrapyramidal syndrome; Degenerative disease; Central nervous system disease |
SD : | Sistema nervioso patología; Parkinson enfermedad; Cirugía; Estudio comparativo; Núcleo subtalámico; Ventriculografía; Imaginería RMN |
LO : | INIST-18396.354000145678960120 |
ID : | 07-0179682 |
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<front><div type="abstract" xml:lang="en">OBJECTIVE: Cerebral ventriculography (Vg) and magnetic resonance imaging (MRI) scanning are routine procedures to determine the implanted electrode placement into the subthalamic nucleus (STN) and are used in several centers that provide deep brain stimulation for Parkinson's disease patients. However, because of image distortion, MRI scan accuracy in determining electrode placement is still matter of debate. The objectives of this study were to verify the expected localization of the electrode contacts within the STN and to compare the stereotactic coordinates of these contacts determined intraoperatively byVg with those calculated postoperatively by MRI scans. To our knowledge, this is the first study attempting to compare the "gold standard" of stereotactic accuracy (Vg) with the anatomic resolution provided by MRI scans. METHODS: Images from 18 patients with Parkinson's disease who underwent bilateral operation were used in this study. Among the 36 chronically stimulated contacts, 28 contacts (78%) were localized in the dorsolateral part of the STN. The remaining eight contacts (22%) were located more dorsally in the zona incerta, close to the upper border of the STN. RESULTS: Significant differences were found between Vg and MRI scans regarding the mediolateral x coordinate of the contacts for both left and right electrodes and regarding the right-sided anteroposterior y coordinate. No statistical difference was found for the left-sided y coordinate and the dorsoventral z coordinate for both sides. CONCLUSION: If we assume thatVg is an imaging gold standard, our results suggest that postoperative MRI scanning may induce a slight image translation compared with Vg. However, MRI scans allowed localization of most of the contacts within the STN.</div>
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<server><NO>PASCAL 07-0179682 INIST</NO>
<ET>Comparison of two techniques to postoperatively localize the electrode contacts used for subthalamic nucleus stimulation. Commentary</ET>
<AU>PINTO (Serge); LE BAS (Jean-Francois); CASTANA (Laura); KRACK (Paul); POLLAK (Pierre); BENABID (Alim-Louis); FRANZINI (Angelo); BROGGI (Giovanni); STARR (Philip); HARIZ (Marwan I.); BAKAY (Roy A. E.)</AU>
<AF>Department of Neurology, Centre Hospitaller Universitaire de Grenoble, and INSEKMU318, Neurosciences Precliniques/Grenoble/France (1 aut., 4 aut., 5 aut.); Unité IRM, Centre Hospitaller Universitaire de Grenoble, and INSERM U594, Neuro-imagerie Fonctionnelle el Métaholique/Grenoble/France (2 aut.); Ospedale Niguarda/Milan/Italie (3 aut.); Department of Neurosurgery, Centre Hospitalier Universilaire de Grenoble, and INSERM U318, Neurosciences Precliniqucs/Grenoble/France (3 aut., 6 aut.)</AF>
<DT>Publication en série; Article; Commentaire; Niveau analytique</DT>
<SO>Neurosurgery; ISSN 0148-396X; Coden NRSRDY; Etats-Unis; Da. 2007; Vol. 60; No. 4 SUP; Pp. 285-294; Bibl. 51 ref.</SO>
<LA>Anglais</LA>
<EA>OBJECTIVE: Cerebral ventriculography (Vg) and magnetic resonance imaging (MRI) scanning are routine procedures to determine the implanted electrode placement into the subthalamic nucleus (STN) and are used in several centers that provide deep brain stimulation for Parkinson's disease patients. However, because of image distortion, MRI scan accuracy in determining electrode placement is still matter of debate. The objectives of this study were to verify the expected localization of the electrode contacts within the STN and to compare the stereotactic coordinates of these contacts determined intraoperatively byVg with those calculated postoperatively by MRI scans. To our knowledge, this is the first study attempting to compare the "gold standard" of stereotactic accuracy (Vg) with the anatomic resolution provided by MRI scans. METHODS: Images from 18 patients with Parkinson's disease who underwent bilateral operation were used in this study. Among the 36 chronically stimulated contacts, 28 contacts (78%) were localized in the dorsolateral part of the STN. The remaining eight contacts (22%) were located more dorsally in the zona incerta, close to the upper border of the STN. RESULTS: Significant differences were found between Vg and MRI scans regarding the mediolateral x coordinate of the contacts for both left and right electrodes and regarding the right-sided anteroposterior y coordinate. No statistical difference was found for the left-sided y coordinate and the dorsoventral z coordinate for both sides. CONCLUSION: If we assume thatVg is an imaging gold standard, our results suggest that postoperative MRI scanning may induce a slight image translation compared with Vg. However, MRI scans allowed localization of most of the contacts within the STN.</EA>
<CC>002B25J</CC>
<FD>Système nerveux pathologie; Parkinson maladie; Chirurgie; Etude comparative; Noyau sousthalamique; Ventriculographie; Imagerie RMN</FD>
<FG>Encéphale pathologie; Extrapyramidal syndrome; Maladie dégénérative; Système nerveux central pathologie</FG>
<ED>Nervous system diseases; Parkinson disease; Surgery; Comparative study; Subthalamic nucleus; Ventriculography; Nuclear magnetic resonance imaging</ED>
<EG>Cerebral disorder; Extrapyramidal syndrome; Degenerative disease; Central nervous system disease</EG>
<SD>Sistema nervioso patología; Parkinson enfermedad; Cirugía; Estudio comparativo; Núcleo subtalámico; Ventriculografía; Imaginería RMN</SD>
<LO>INIST-18396.354000145678960120</LO>
<ID>07-0179682</ID>
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