ArticleChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2011
Observed magnetic resonance imaging changes in pediatric patients treated with stereotactic radiosurgery for intracranial tumors.
Article in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
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1 citing paper in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Bridging surgery and radiotherapy: the role of stereotactic radiosurgery in pediatric brain tumor care.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026Pooled it
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
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Abstract
purposeThis study seeks to characterize magnetic resonance imaging (MRI) changes following stereotactic radiosurgery (SRS) of pediatric brain malignancies.
methodsSerial MRI evaluations were performed on 21 lesions treated with SRS for either medulloblastoma (n=12), juvenile pilocytic astrocytoma (n=4), ependymoma (n=2), atypical rhabdoid teratoid tumor (n=2), or pineocytoma (n=1). Prescription doses ranged from 14 to 30 Gy in one to five fractions. Tumor response was qualified as complete (CR), partial (PR), stable disease (SD), or progressive disease (PD) according to the RECIST v1.1. Median radiographic follow-up after SRS was 17 months.
resultsA total of 80 follow-up MRI scans were reviewed with a median of eight per patient. During serial MRI evaluation, eight lesions met criteria for PD at a median of 6 months. However, of these, three (37%) represented transient tumor edema with two lesions later developing a CR at a median of 15 months and one persisting as SD at 12 months. The remaining five lesions were true local failures. Of the 13 lesions that did not show evidence of PD, a CR was obtained in 11 lesions at a median of 3 months (range, 2-6), and SD was seen in the remaining two tumors at last follow-up.
conclusionLesion enlargement following SRS for pediatric intracranial tumors is common, and a proportion of patients meeting requirements for PD at early radiographic follow-up may later develop complete resolution of their lesions. Physicians should be aware of these radiographic changes to avoid unwarranted medical and surgical interventions.
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