ParkinsonFranceV1, PascalFrancis, Corpus, bibRecord, 000C58

Characterization and correction of distortions in stereotactic magnetic resonance imaging for bilateral subthalamic stimulation in Parkinson disease

Identifieur interne : 000C58 ( PascalFrancis/Corpus ); précédent : 000C57; suivant : 000C59

Characterization and correction of distortions in stereotactic magnetic resonance imaging for bilateral subthalamic stimulation in Parkinson disease

Auteurs : Carole Menuel ; Line Garnero ; Eric Bardinet ; Fabrice Poupon ; Daniel Phalippou ; Didier Dormont

Source :

Journal of neurosurgery [ 0022-3085 ] ; 2005.

RBID : Pascal:05-0384684

Descripteurs français

Pascal (Inist)
- Système nerveux pathologie, Parkinson maladie, Chirurgie, Correction, Distorsion, Stéréotaxie, Imagerie RMN, Noyau sousthalamique.

English descriptors

KwdEn :
- Corrections, Distortion, Nervous system diseases, Nuclear magnetic resonance imaging, Parkinson disease, Stereotaxia, Subthalamic nucleus, Surgery.

Abstract

Object. High-frequency stimulation of the subthalamic nucleus (STN) is effective for treating refractory idiopathic Parkinson disease (PD). In stereotactic conditions magnetic resonance (MR) imaging is used by many teams to perform preoperative targeting of the STN. The goal of this study was to analyze and correct the geometrically observed MR imaging acquisitions used for targeting of the STN. Methods. A dedicated phantom of known geometry was used. The authors calculated existing shifts between measured points and theoretically defined points on the same T₁- and T₂-weighted sequences used to target the STN. A shifting volume was built to correct the phantom images and images acquired preoperatively in 13 patients with PD. A quantitative study of the correction was conducted using the phantom images and acquisitions acquired in these patients. To quantify the distortion corrections, the authors segmented the lateral ventricles and calculated the overlap of the corrected and uncorrected values between T₁ and T₂ segmentation. The authors found that the distortions were greater in the direction of slice selection and frequency encoding and weaker on three-dimensional T₁-weighted acquisitions. On T₂-weighted acquisitions, the maximum shifts were 2.19 mm in the frequency-encoding direction and 3.81 mm in slice selection. The geometrical distortion was significantly reduced and smaller than pixel size after distortion correction. Assessment of the patients' scans showed that the mean ventricular overlap was 76% before and 94% after correction. Conclusions. The authors found that significant distortions can be observed on T₂-weighted images used to demonstrate the STN. These distortions can be corrected using appropriate software.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0022-3085`
A02	`01`			`@0 JONSAC`
A03		`1`		`@0 J. neurosurg.`
A05				`@2 103`
A06				`@2 2`
A08	`01`	`1`	`ENG`	`@1 Characterization and correction of distortions in stereotactic magnetic resonance imaging for bilateral subthalamic stimulation in Parkinson disease`
A11	`01`	`1`		`@1 MENUEL (Carole)`
A11	`02`	`1`		`@1 GARNERO (Line)`
A11	`03`	`1`		`@1 BARDINET (Eric)`
A11	`04`	`1`		`@1 POUPON (Fabrice)`
A11	`05`	`1`		`@1 PHALIPPOU (Daniel)`
A11	`06`	`1`		`@1 DORMONT (Didier)`
A14	`01`			`@1 Laboratoire de Neurosciences Cognitives et Imagerie Cérébrale, Groupe Hospitalier Pitié Salpêtrière @2 Paris @3 FRA`
A14	`02`			`@1 Institut d'Optique @2 Orsay @3 FRA`
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A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 6023 @5 354000132392160100`
A44				`@0 0000 @1 © 2005 INIST-CNRS. All rights reserved.`
A45				`@0 24 ref.`
A47	`01`	`1`		`@0 05-0384684`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of neurosurgery`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 Object. High-frequency stimulation of the subthalamic nucleus (STN) is effective for treating refractory idiopathic Parkinson disease (PD). In stereotactic conditions magnetic resonance (MR) imaging is used by many teams to perform preoperative targeting of the STN. The goal of this study was to analyze and correct the geometrically observed MR imaging acquisitions used for targeting of the STN. Methods. A dedicated phantom of known geometry was used. The authors calculated existing shifts between measured points and theoretically defined points on the same T₁- and T₂-weighted sequences used to target the STN. A shifting volume was built to correct the phantom images and images acquired preoperatively in 13 patients with PD. A quantitative study of the correction was conducted using the phantom images and acquisitions acquired in these patients. To quantify the distortion corrections, the authors segmented the lateral ventricles and calculated the overlap of the corrected and uncorrected values between T₁ and T₂ segmentation. The authors found that the distortions were greater in the direction of slice selection and frequency encoding and weaker on three-dimensional T₁-weighted acquisitions. On T₂-weighted acquisitions, the maximum shifts were 2.19 mm in the frequency-encoding direction and 3.81 mm in slice selection. The geometrical distortion was significantly reduced and smaller than pixel size after distortion correction. Assessment of the patients' scans showed that the mean ventricular overlap was 76% before and 94% after correction. Conclusions. The authors found that significant distortions can be observed on T₂-weighted images used to demonstrate the STN. These distortions can be corrected using appropriate software.
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 Parkinson maladie @5 02`
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C03	`04`	`X`	`ENG`	`@0 Corrections @5 10`
C03	`04`	`X`	`SPA`	`@0 Corrección @5 10`
C03	`05`	`X`	`FRE`	`@0 Distorsion @5 11`
C03	`05`	`X`	`ENG`	`@0 Distortion @5 11`
C03	`05`	`X`	`SPA`	`@0 Distorsión @5 11`
C03	`06`	`X`	`FRE`	`@0 Stéréotaxie @5 12`
C03	`06`	`X`	`ENG`	`@0 Stereotaxia @5 12`
C03	`06`	`X`	`SPA`	`@0 Estereotaxia @5 12`
C03	`07`	`X`	`FRE`	`@0 Imagerie RMN @5 13`
C03	`07`	`X`	`ENG`	`@0 Nuclear magnetic resonance imaging @5 13`
C03	`07`	`X`	`SPA`	`@0 Imaginería RMN @5 13`
C03	`08`	`X`	`FRE`	`@0 Noyau sousthalamique @5 14`
C03	`08`	`X`	`ENG`	`@0 Subthalamic nucleus @5 14`
C03	`08`	`X`	`SPA`	`@0 Núcleo subtalámico @5 14`
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				`@1 269`
N44	`01`			`@1 OTO`
N82				`@1 OTO`

Format Inist (serveur)

NO :	PASCAL 05-0384684 INIST
ET :	Characterization and correction of distortions in stereotactic magnetic resonance imaging for bilateral subthalamic stimulation in Parkinson disease
AU :	MENUEL (Carole); GARNERO (Line); BARDINET (Eric); POUPON (Fabrice); PHALIPPOU (Daniel); DORMONT (Didier)
AF :	Laboratoire de Neurosciences Cognitives et Imagerie Cérébrale, Groupe Hospitalier Pitié Salpêtrière/Paris/France; Institut d'Optique/Orsay/France
DT :	Publication en série; Niveau analytique
SO :	Journal of neurosurgery; ISSN 0022-3085; Coden JONSAC; Etats-Unis; Da. 2005; Vol. 103; No. 2; Pp. 256-266; Bibl. 24 ref.
LA :	Anglais
EA :	Object. High-frequency stimulation of the subthalamic nucleus (STN) is effective for treating refractory idiopathic Parkinson disease (PD). In stereotactic conditions magnetic resonance (MR) imaging is used by many teams to perform preoperative targeting of the STN. The goal of this study was to analyze and correct the geometrically observed MR imaging acquisitions used for targeting of the STN. Methods. A dedicated phantom of known geometry was used. The authors calculated existing shifts between measured points and theoretically defined points on the same T₁- and T₂-weighted sequences used to target the STN. A shifting volume was built to correct the phantom images and images acquired preoperatively in 13 patients with PD. A quantitative study of the correction was conducted using the phantom images and acquisitions acquired in these patients. To quantify the distortion corrections, the authors segmented the lateral ventricles and calculated the overlap of the corrected and uncorrected values between T₁ and T₂ segmentation. The authors found that the distortions were greater in the direction of slice selection and frequency encoding and weaker on three-dimensional T₁-weighted acquisitions. On T₂-weighted acquisitions, the maximum shifts were 2.19 mm in the frequency-encoding direction and 3.81 mm in slice selection. The geometrical distortion was significantly reduced and smaller than pixel size after distortion correction. Assessment of the patients' scans showed that the mean ventricular overlap was 76% before and 94% after correction. Conclusions. The authors found that significant distortions can be observed on T₂-weighted images used to demonstrate the STN. These distortions can be corrected using appropriate software.
CC :	002B25J
FD :	Système nerveux pathologie; Parkinson maladie; Chirurgie; Correction; Distorsion; Stéréotaxie; Imagerie RMN; Noyau sousthalamique
FG :	Encéphale pathologie; Extrapyramidal syndrome; Maladie dégénérative; Système nerveux central pathologie
ED :	Nervous system diseases; Parkinson disease; Surgery; Corrections; Distortion; Stereotaxia; Nuclear magnetic resonance imaging; Subthalamic nucleus
EG :	Cerebral disorder; Extrapyramidal syndrome; Degenerative disease; Central nervous system disease
SD :	Sistema nervioso patología; Parkinson enfermedad; Cirugía; Corrección; Distorsión; Estereotaxia; Imaginería RMN; Núcleo subtalámico
LO :	INIST-6023.354000132392160100
ID :	05-0384684

Links to Exploration step

Pascal:05-0384684

Le document en format XML

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<term>Stereotaxia</term>
<term>Subthalamic nucleus</term>
<term>Surgery</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Système nerveux pathologie</term>
<term>Parkinson maladie</term>
<term>Chirurgie</term>
<term>Correction</term>
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<front><div type="abstract" xml:lang="en">Object. High-frequency stimulation of the subthalamic nucleus (STN) is effective for treating refractory idiopathic Parkinson disease (PD). In stereotactic conditions magnetic resonance (MR) imaging is used by many teams to perform preoperative targeting of the STN. The goal of this study was to analyze and correct the geometrically observed MR imaging acquisitions used for targeting of the STN. Methods. A dedicated phantom of known geometry was used. The authors calculated existing shifts between measured points and theoretically defined points on the same T<sub>1</sub>
- and T<sub>2</sub>
-weighted sequences used to target the STN. A shifting volume was built to correct the phantom images and images acquired preoperatively in 13 patients with PD. A quantitative study of the correction was conducted using the phantom images and acquisitions acquired in these patients. To quantify the distortion corrections, the authors segmented the lateral ventricles and calculated the overlap of the corrected and uncorrected values between T<sub>1</sub>
 and T<sub>2</sub>
 segmentation. The authors found that the distortions were greater in the direction of slice selection and frequency encoding and weaker on three-dimensional T<sub>1</sub>
-weighted acquisitions. On T<sub>2</sub>
-weighted acquisitions, the maximum shifts were 2.19 mm in the frequency-encoding direction and 3.81 mm in slice selection. The geometrical distortion was significantly reduced and smaller than pixel size after distortion correction. Assessment of the patients' scans showed that the mean ventricular overlap was 76% before and 94% after correction. Conclusions. The authors found that significant distortions can be observed on T<sub>2</sub>
-weighted images used to demonstrate the STN. These distortions can be corrected using appropriate software.</div>
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<fC01 i1="01" l="ENG"><s0>Object. High-frequency stimulation of the subthalamic nucleus (STN) is effective for treating refractory idiopathic Parkinson disease (PD). In stereotactic conditions magnetic resonance (MR) imaging is used by many teams to perform preoperative targeting of the STN. The goal of this study was to analyze and correct the geometrically observed MR imaging acquisitions used for targeting of the STN. Methods. A dedicated phantom of known geometry was used. The authors calculated existing shifts between measured points and theoretically defined points on the same T<sub>1</sub>
- and T<sub>2</sub>
-weighted sequences used to target the STN. A shifting volume was built to correct the phantom images and images acquired preoperatively in 13 patients with PD. A quantitative study of the correction was conducted using the phantom images and acquisitions acquired in these patients. To quantify the distortion corrections, the authors segmented the lateral ventricles and calculated the overlap of the corrected and uncorrected values between T<sub>1</sub>
 and T<sub>2</sub>
 segmentation. The authors found that the distortions were greater in the direction of slice selection and frequency encoding and weaker on three-dimensional T<sub>1</sub>
-weighted acquisitions. On T<sub>2</sub>
-weighted acquisitions, the maximum shifts were 2.19 mm in the frequency-encoding direction and 3.81 mm in slice selection. The geometrical distortion was significantly reduced and smaller than pixel size after distortion correction. Assessment of the patients' scans showed that the mean ventricular overlap was 76% before and 94% after correction. Conclusions. The authors found that significant distortions can be observed on T<sub>2</sub>
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<server><NO>PASCAL 05-0384684 INIST</NO>
<ET>Characterization and correction of distortions in stereotactic magnetic resonance imaging for bilateral subthalamic stimulation in Parkinson disease</ET>
<AU>MENUEL (Carole); GARNERO (Line); BARDINET (Eric); POUPON (Fabrice); PHALIPPOU (Daniel); DORMONT (Didier)</AU>
<AF>Laboratoire de Neurosciences Cognitives et Imagerie Cérébrale, Groupe Hospitalier Pitié Salpêtrière/Paris/France; Institut d'Optique/Orsay/France</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of neurosurgery; ISSN 0022-3085; Coden JONSAC; Etats-Unis; Da. 2005; Vol. 103; No. 2; Pp. 256-266; Bibl. 24 ref.</SO>
<LA>Anglais</LA>
<EA>Object. High-frequency stimulation of the subthalamic nucleus (STN) is effective for treating refractory idiopathic Parkinson disease (PD). In stereotactic conditions magnetic resonance (MR) imaging is used by many teams to perform preoperative targeting of the STN. The goal of this study was to analyze and correct the geometrically observed MR imaging acquisitions used for targeting of the STN. Methods. A dedicated phantom of known geometry was used. The authors calculated existing shifts between measured points and theoretically defined points on the same T<sub>1</sub>
- and T<sub>2</sub>
-weighted sequences used to target the STN. A shifting volume was built to correct the phantom images and images acquired preoperatively in 13 patients with PD. A quantitative study of the correction was conducted using the phantom images and acquisitions acquired in these patients. To quantify the distortion corrections, the authors segmented the lateral ventricles and calculated the overlap of the corrected and uncorrected values between T<sub>1</sub>
 and T<sub>2</sub>
 segmentation. The authors found that the distortions were greater in the direction of slice selection and frequency encoding and weaker on three-dimensional T<sub>1</sub>
-weighted acquisitions. On T<sub>2</sub>
-weighted acquisitions, the maximum shifts were 2.19 mm in the frequency-encoding direction and 3.81 mm in slice selection. The geometrical distortion was significantly reduced and smaller than pixel size after distortion correction. Assessment of the patients' scans showed that the mean ventricular overlap was 76% before and 94% after correction. Conclusions. The authors found that significant distortions can be observed on T<sub>2</sub>
-weighted images used to demonstrate the STN. These distortions can be corrected using appropriate software.</EA>
<CC>002B25J</CC>
<FD>Système nerveux pathologie; Parkinson maladie; Chirurgie; Correction; Distorsion; Stéréotaxie; Imagerie RMN; Noyau sousthalamique</FD>
<FG>Encéphale pathologie; Extrapyramidal syndrome; Maladie dégénérative; Système nerveux central pathologie</FG>
<ED>Nervous system diseases; Parkinson disease; Surgery; Corrections; Distortion; Stereotaxia; Nuclear magnetic resonance imaging; Subthalamic nucleus</ED>
<EG>Cerebral disorder; Extrapyramidal syndrome; Degenerative disease; Central nervous system disease</EG>
<SD>Sistema nervioso patología; Parkinson enfermedad; Cirugía; Corrección; Distorsión; Estereotaxia; Imaginería RMN; Núcleo subtalámico</SD>
<LO>INIST-6023.354000132392160100</LO>
<ID>05-0384684</ID>
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	La maladie de Parkinson en France (serveur d'exploration)
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La maladie de Parkinson en France (serveur d'exploration)

Characterization and correction of distortions in stereotactic magnetic resonance imaging for bilateral subthalamic stimulation in Parkinson disease

Characterization and correction of distortions in stereotactic magnetic resonance imaging for bilateral subthalamic stimulation in Parkinson disease

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