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Abstract #5318

Initial experience with Amide Proton Transfer weighted imaging in pediatric neuro-oncology

Iris Obdeijn1, Evita Wiegers1, Sabine Plasschaert2, Kim van de Ven3, Dennis Klomp1, Hans Hoogduin1, Maarten Lequin1,2, and Jannie Wijnen1
1Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht, Netherlands, 2Department of Pediatric Neuro-Oncology, Princess Maxima Center for pediatric oncology, Utrecht, Netherlands, 3BIU MR, Philips Healthcare, Best, Netherlands

Synopsis

Keywords: Neuro, CEST & MTAPTw imaging has shown promising applications in diagnosing adult brain tumors. However, pediatric brain tumors differ from their adult counterparts in terms of clinical, biological, and radiological appearance. Therefore, we investigated if and how APTw imaging can be used in clinical-decision making in pediatric neuro-oncology. First, we showed the repeatability of APTw maps, allowing longitudinal assessment. Then APTw imaging was evaluated in eleven children with a brain tumor. APTw values are higher in pediatric brain tumors compared to normal-appearing white matter. Unlike studies in adults, APTw values were not significant different between low-grade glioma and high-grade glioma in these children.

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Keywords