[Nuclear magnetic resonance tomographic diagnosis of brain tumors in children and adolescents. A comparison with computed tomography].
Thirty-one pediatric patients with brain tumors--25 primarily diagnosed, 6 recurrences--underwent MR and CT examinations before and after application of contrast media. Tumor detection, delineation of the tumor extent and definition of the tumor type were compared. Gd-DTPA-enhanced MR was superior in delineating the extent of primarily diagnosed tumors, which showed enhancement (n = 22). The tumor detection (1/6) and the identification of the tumor margins (5/6) were improved by Gd-DTPA in the 6 recurrences. Tumors without enhancement (n = 3) were judged by T2-weighted images better than by CT. The results suggest that Gd-DTPA is indicated for the evaluation of brain tumors in pediatric patients as well, especially since it offers advantages distinguishing between tumor types. Only the detection of tumor calcifications, which is rarely specific, is not possible by MR.
Gückel
C
C
Institut für radiologische Diagnostik, Universität zu Köln.
Benz-Bohm
G
G
Wiedemann
G
G
Thun
F
F
D000293:Adolescent; D001254:Astrocytoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D003397:Craniopharyngioma / Q000175:diagnosis / Q000000981:diagnostic imaging; D004806:Ependymoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D008527:Medulloblastoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000000981:diagnostic imaging; D012175:Retinoblastoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D013724:Teratoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
Kernspintomographische Hirntumordiagnostik im Kindes- und Jugendalter. Vergleich mit der Computertomographie.