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Titolo:
EARLY POSTOPERATIVE MAGNETIC-RESONANCE-IMAGING FOLLOWING NONNEOPLASTIC CORTICAL RESECTION
Autore:
HENEGAR MM; MORAN CJ; SILBERGELD DL;
Indirizzi:
WASHINGTON UNIV,SCH MED,DEPT NEUROL SURG,CAMPUS BOX 8057,660 S EUCLIDAVE ST LOUIS MO 63110 WASHINGTON UNIV,SCH MED,DEPT NEUROL SURG ST LOUIS MO 63110 WASHINGTON UNIV,SCH MED,DEPT RADIOL NEURORADIOL ST LOUIS MO 63110
Titolo Testata:
Journal of neurosurgery
fascicolo: 2, volume: 84, anno: 1996,
pagine: 174 - 179
SICI:
0022-3085(1996)84:2<174:EPMFN>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
CT CONTRAST ENHANCEMENT; GLIOBLASTOMA-MULTIFORME; BRAIN-TUMORS; MALIGNANT GLIOMA; COMPUTED TOMOGRAPHY; SURVIVAL; ASTROCYTOMAS; RADIOTHERAPY; SURGERY; EXTENT;
Keywords:
BRAIN NEOPLASM; MAGNETIC RESONANCE IMAGING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
45
Recensione:
Indirizzi per estratti:
Citazione:
M.M. Henegar et al., "EARLY POSTOPERATIVE MAGNETIC-RESONANCE-IMAGING FOLLOWING NONNEOPLASTIC CORTICAL RESECTION", Journal of neurosurgery, 84(2), 1996, pp. 174-179

Abstract

Postcraniotomy residual tumor is often determined by magnetic resonance (MR) imaging. Magnetic resonance changes that occur in the postoperative setting must be defined to ensure both the optimum timing of postoperative image acquisition and the accurate assessment of images forresidual tumor. Postoperative changes in nontumor parenchyma have previously been described for computerized tomography but not for MR imaging. In the present study, 11 patients without intracranial neoplasticdisease (six females and five males with a median age of 36 years) submitted to MR imaging 17 to 28 hours after undergoing temporal lobectomies for epilepsy. Four of the operations were performed with the patients under general anesthesia and seven under local anesthesia. Postoperative MR images (T-1-weighted, T-1-weighted gadolinium enhanced, andT-2-weighted) were reviewed. Extraaxial fluid, air, or blood was present in all cases. Enhancement of the resection bed parenchyma occurredin seven (64%) of 11 patients. In three of the remaining four patients, assessment of parenchymal enhancement was obscured by extraaxial fluid collections. Dural enhancement occurred adjacent to the resection site in all of the cases and remotely in 73%. Eight (73%) of 11 patients displayed enhancement of the pia-arachnoid of the ipsilateral cerebral convexity, two (18%) of the contralateral convexity, and four (36%) of the pia-arachnoid overlying the cerebellum. Contrary to previous reports, contrast enhancement of nonneoplastic human brain parenchyma can occur postoperatively within 17 hours. Benign parenchymal contrastenhancement is usually linear in appearance; nonneoplastic dural and leptomeningeal enhancement can occur both adjacent to and distant fromthe surgical site. Extraaxial fluid collections can hinder MR evaluation of the resection bed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 19:58:58