Radiation Safety
Fig. 7.1 Ionizing energy transmission associated with radiation particles (Adapted from “A Small Dose of Toxicology”, with permission) Beta particles, in contrast, are high-energy, high-speed positrons or electrons that emit…
History of Pediatric Urologic Imaging
Fig. 1.1 The principal organs and vascular and urinogenital systems of a woman, c. 1507 by Leonardo da Vinci Modern genitourinary tract imaging, however, resulted from the union of two…
18F-FDG–PET/CT in Pediatric Lymphoma
Fig. 6.1 A 15-year-old girl with Hodgkin’s disease. Coronal CT (a), PET (b), PET/CT fusion (c), and maximum intensity projection (d) staging images show multiple sites of uptake in the…
18F-FDG in the Imaging of Brain Tumors
Fig. 20.1 A 16-year-old girl with a dysembryoplastic neuroepithelial tumor (DNET) and partial seizures. Sagittal (a) and axial (b) 18F-DOPA–PET/MRI fusion images show no significant radiotracer accumulation by the right…
Primary Bone Tumors
Fig. 8.1 A 17-year-old boy with Ewing’s sarcoma of the left pelvis, with extension into the iliac bone, acetabulum, gluteus, and piriformis muscles. As the patient suffered intense pain in…
Neuroblastoma
Fig. 12.1 (a, b) Whole-body123I-MIBG scan of a patient with stage IV neuroblastoma. The scan was performed before treatment was started Fig. 12.2 The same patient as in Fig. 12.1….
Physiological Patterns and Pitfalls of 18F-FDG Biodistribution
Fig. 4.1 Coronal CT (a), PET (b), and PET/CT fusion (c) images show focal 18F-FDG uptake in the left pelvis, corresponding to the ovarian follicle In young patients, the thymus…
Autoimmune Lymphoproliferative Syndrome
Fig. 32.1 Sagittal T2 STIR MRI shows significant signal alteration involving the first lumbar vertebral body, with epidural pathologic tissue and slight dural sac compression Fig. 32.2 Axial T1 MRI…
Utility of 18F-FDG–PET/CT in Soft Tissue Sarcomas
Adipocytic tumors Dedifferentiated liposarcoma Myxoid/round cell liposarcoma Pleomorphic liposarcoma Fibroblastic/myofibroblastic tumors Fibrosarcoma Low-grade myxofibrosarcoma Low-grade fibromyxoid sarcoma Sclerosing epithelioid fibrosarcoma So-called fibrohistiocytic tumors Undifferentiated pleomorphic sarcoma/malignant fibrous histiocytoma (MFH) Smooth…
Sarcoidosis
Fig. 30.1 Maximum intensity projection 18F-FDG–PET image (a) shows multiple areas of increased radiopharmaceutical uptake in the thoracic region (arrows). Axial CT (b), PET (c), and PET/CT (d) images show…
