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Biomedical subjects

P Schmidberger

Publications and source records attributed to P Schmidberger.

4 recordsLinked to original sources

NMR follow-up studies of CNS-tumors in infancy and childhood.

Sixteen children with brain tumors, fifteen of which were located in the posterior cranial fossa, were followed-up postoperatively with NMR. Four recurrences of medulloblastoma and one recurrence of an ependymoma were found. Three children showed signs of known therapeutic sequelae such as hygroma, atrophy and dilatation of the subarachnoid space. Previously unreported, boundary layer lesions were found in 8 children. The etiology of these lesions and their differentiation from tumor recurrence are discussed.

Brain Neoplasms

[Possibilities in using a specific pulse sequence (interlocking sequence) to improve the specificity in NMR tomography].

Methods and possibilities of application of a doubled and interlaced pulse sequence ("interlaced sequence") are discussed. This makes it possible to perform contrast variations and pulse sequence variations subsequently, as well as to determine the parameters proton density, T1 and T2. The selectivity of the combination of all three parameters for tissue classification is demonstrated by means of an individual case and seems to promise a higher specificity of MR tomography.

Brain Neoplasms

[NMR studies of the central nervous system in pediatrics].

The central nervous system in 70 infants, children and adolescents has been examined by NMR. Phase I of the continuing investigation dealt with the applicability and scope in this group of patients. A retrospective comparison with CT was used to examine the possibility of enhancing and differentiating various tissues. The results have shown that NMR can extend the diagnostic possibilities beyond those of CT in the paediatric age group.

Adolescent