18F-FDG PET/CT Qualitative and Quantitative Evaluation in Neurofibromatosis Type 1 Patients for Detection of Malignant Transformation: Comparison of Early to Delayed Imaging With and Without Liver Activity Normalization

Alin Chirindel , Muhammad Chaudhry , Jaishri O. Blakeley , Richard Wahl 1 1. Russell H. Morgan Department of Radiology and Radiological Science, Division of Nuclear Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA 2. Robert Koch Str.3, 79106, Freiburg, Germany,DKFZGerman Cancer Consortium Partner Site Freiburg, Department of Radiation Oncology Freiburg University, Germany 3. Johns Hopkins Aramco Healthcare, Dhahran, KSA 4. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA