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Titolo:
Intraoperative ultrasound for guidance and tissue shift correction in image-guided neurosurgery
Autore:
Comeau, RM; Sadikot, AF; Fenster, A; Peters, TM;
Indirizzi:
McGill Univ, Montreal Neurol Inst, McConnell Brain Imaging Ctr, Montreal, PQ H3A 2B4, Canada McGill Univ Montreal PQ Canada H3A 2B4 Ctr, Montreal, PQ H3A 2B4, Canada McGill Univ, Dept Biomed Engn, Montreal, PQ H3A 2B4, Canada McGill Univ Montreal PQ Canada H3A 2B4 Engn, Montreal, PQ H3A 2B4, Canada McGill Univ, Montreal Neurol Inst, Dept Neurol & Neurosurg, Montreal, PQ H3A 2B4, Canada McGill Univ Montreal PQ Canada H3A 2B4 surg, Montreal, PQ H3A 2B4, Canada Univ Western Ontario, John P Robarts Res LAbs, Imaging Res Labs, London, ON N6A 5K8, Canada Univ Western Ontario London ON Canada N6A 5K8 London, ON N6A 5K8, Canada
Titolo Testata:
MEDICAL PHYSICS
fascicolo: 4, volume: 27, anno: 2000,
pagine: 787 - 800
SICI:
0094-2405(200004)27:4<787:IUFGAT>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
STEREOTAXIC NEUROSURGERY; FIDUCIAL MARKERS; BRAIN; MR; REGISTRATION; SYSTEM; ULTRASONOGRAPHY; LOCALIZATION; DEFORMATION; DISTORTION;
Keywords:
image-guided surgery; ultrasound; tissue deformation; image warping; image registration; neurosurgery; intraoperative imaging;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
61
Recensione:
Indirizzi per estratti:
Indirizzo: Comeau, RM McGill Univ, Montreal Neurol Inst, McConnell Brain Imaging Ctr,3801 Univ St, Montreal, PQ H3A 2B4, Canada McGill Univ 3801 Univ St Montreal PQ Canada H3A 2B4 2B4, Canada
Citazione:
R.M. Comeau et al., "Intraoperative ultrasound for guidance and tissue shift correction in image-guided neurosurgery", MED PHYS, 27(4), 2000, pp. 787-800

Abstract

We present a surgical guidance system that incorporates pre-operative image information (e.g., MRI) with intraoperative ultrasound (US) imaging to detect and correct for brain tissue deformation during image-guided neurosurgery (IGNS). Many interactive IGNS implementations employ preoperative images as a guide to the surgeons throughout the procedure. However, when a craniotomy is involved, tissue movement during a procedure can be a significantsource of error in these systems. By incorporating intraoperative US imaging, the target volume can be scanned at any time, and two-dimensional US images may be compared directly to the corresponding slice from the pre-operative image. Homologous points may be mapped from the intraoperative to the preoperative image space with an accuracy of better than 2 mm, enabling thesurgeon to use this information to assess the accuracy of the guidance system along with the progress of the procedure (e.g., extent of lesion removal) at any time during the operation. Anatomical features may be identified on both the pre-operative and intraoperative images and used to generate a deformation map, which can be used to warp the pre-operative image to matchthe intraoperative US image. System validation is achieved using a deformable multi-modality imaging phantom, and preliminary clinical results are presented. (C) 2000 American Association of Physicists in Medicine.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 12:03:14