title: [Appearance of the resection area of brain tumors in intraoperative MRI imaging].
abstract: During MRI-controlled resection of brain tumors using an open MRI system, operation-induced alterations may occur, especially enhancement of the resection cavity wall. This may simulate tumor areas, resulting in false assessment of the resection or resection of non-tumorous areas. Based on 42 MRI- and biopsy-controlled brain tumor resections in an 0.5 T open MRI (Signa SP, GE), the appearance and origin of operation-induced reactions are analyzed. In our opinion, there is a superposition of preformed peritumoral reactions by operation-induced microcontusions. The beginning of the cavity wall enhancement needs at least 10-15 min. MRI-controlled analysis of the intraoperative steps by the neurosurgeon and neuroradiologist allows discrimination of operation-induced reactions from tumor areas and leads to safe operation.
authors.affiliation: Arbeitsbereich Neuroradiologie, Universitätsklinik für Diagnostische Radiologie, Leipzig.
authors.forename: J
authors.initials: J
authors.lastname: Dietrich
authors.forename: J P
authors.initials: JP
authors.lastname: Schneider
authors.forename: T
authors.initials: T
authors.lastname: Schulz
authors.forename: V
authors.initials: V
authors.lastname: Seifert
authors.forename: C
authors.initials: C
authors.lastname: Trantakis
authors.forename: S
authors.initials: S
authors.lastname: Kellermann
mesh_terms: D001254:Astrocytoma / Q000473:pathology*; D001706:Biopsy; D001921:Brain / Q000473:pathology; D001932:Brain Neoplasms / Q000473:pathology / Q000601:surgery*; D005909:Glioblastoma / Q000473:pathology*; D006801:Humans; D007432:Intraoperative Period; D008279:Magnetic Resonance Imaging; D008579:Meningioma / Q000473:pathology*; D011183:Postoperative Complications / Q000473:pathology
vernacular_title: Intraoperatives Erscheinungsbild des Resektionsbereichs bei Hirntumoroperationen in einem offenen 0, 5-T-MRT.