Abstract
MRI is clearly the method of choice for the imaging of diseases of the CNS. CT usually has only an additional role in case of emergency or contraindications against MRI. For radiotherapy planning the physical properties of CT are essential [112]. However, it still is the only method for a reliable depiction of calcifications near the skull base, which can have a diagnostic potential in some tumor entities [114, 115]. The signal intensities on MRI and density values on CT allow a limited diagnosis of the histology of the tumor (see Chap. 3). Invasive angiography or conventional radiography is useful only in rare exceptions. Imaging in children participating in treatment studies for brain tumors has to answer specific questions. At the time of diagnosis the extent of the tumor is important for the correct stratification of the patients into the different treatment arms of the respective studies. On follow-up the comparability besides the completeness of imaging is important. The reference (neuro)-radiologists for the European brain tumor studies of the SIOP-E (Societé International d’Oncologie Pediatrique- Europe) have worked out a consensus on imaging prescriptions for the individual studies. These details and pitfalls and common mistakes of imaging are presented in the following chapter.
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Warmuth-Metz, M. (2017). Imaging Guidelines for Pediatric Brain Tumor Patients. In: Imaging and Diagnosis in Pediatric Brain Tumor Studies. Springer, Cham. https://doi.org/10.1007/978-3-319-42503-0_4
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