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Titolo:
MAGNETIC-RESONANCE IMAGE-DIRECTED STEREOTAXIC NEUROSURGERY - USE OF IMAGE FUSION WITH COMPUTERIZED-TOMOGRAPHY TO ENHANCE SPATIAL ACCURACY
Autore:
ALEXANDER E; KOOY HM; VANHERK M; SCHWARTZ M; BARNES PD; TARBELL N; MULKERN RV; HOLUPKA EJ; LOEFFLER JS;
Indirizzi:
BRIGHAM & WOMENS HOSP,DEPT NEUROSURG,75 FRANCIS ST BOSTON MA 02115 BRIGHAM & WOMENS HOSP,JOINT CTR RADIAT THERAPY BOSTON MA 02115 BRIGHAM & WOMENS HOSP,DEPT RADIAT ONCOL,STEREOTACT RADIOSURG & RADIOTHERAPY PROGRAM BOSTON MA 02115 BRIGHAM & WOMENS HOSP,DEPT RADIOL BOSTON MA 02115 BRIGHAM & WOMENS HOSP,DEPT SURG NEUROSURG BOSTON MA 02115 CHILDRENS HOSP BOSTON MA 00000 HARVARD UNIV,SCH MED BOSTON MA 00000
Titolo Testata:
Journal of neurosurgery
fascicolo: 2, volume: 83, anno: 1995,
pagine: 271 - 276
SICI:
0022-3085(1995)83:2<271:MISN-U>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
MR; ALGORITHM; BRAIN;
Keywords:
STEREOTAXIC RADIOSURGERY; IMAGE FUSION; STEREOTAXIS; MAGNETIC RESONANCE IMAGING; COMPUTERIZED TOMOGRAPHY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
E. Alexander et al., "MAGNETIC-RESONANCE IMAGE-DIRECTED STEREOTAXIC NEUROSURGERY - USE OF IMAGE FUSION WITH COMPUTERIZED-TOMOGRAPHY TO ENHANCE SPATIAL ACCURACY", Journal of neurosurgery, 83(2), 1995, pp. 271-276

Abstract

Distortions of the magnetic field, such as those caused by susceptibility artifacts and peripheral magnetic field warping, can limit geometric precision in the use of magnetic resonance (MR) imaging in stereotactic procedures. The authors have routinely found systematic error inMR stereotactic coordinates with a median of 4 mm compared to computerized tomography (CT) coordinates. This error may place critical neural structures in jeopardy in some procedures. A description is given ofan image fusion technique that uses a chamfer matching algorithm; theadvantages of MR imaging in anatomical definition are combined with the geometric precision of CT, while eliminating most of the anatomicalspatial distortion of stereotactic MR imaging. A stereotactic radiosurgical case is presented in which the use of MR localization alone would have led to both irradiation of vital neural structures outside thedesired target volume and underdose of the intended target volume. The image fusion approach allows for the use of MR imaging, combined with stereotactic CT, as a reliable localizing technique for stereotacticneurosurgery and radiosurgery.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 15:06:06