Fig. 1.
![Normal metabolic (FDG) and perfusion ([15O]H2O) PET scans in a neurologically normal SS child. The red areas on the PET represent regions with high activity of metabolism (FDG) and perfusion ([15O]H2O). Yellow represents less activity. Green and blue denote progressively lower activity levels. Black represents no measurable metabolic neuronal function.](https://ash.silverchair-cdn.com/ash/content_public/journal/blood/93/1/10.1182_blood.v93.1.71/5/blod401pow01z.jpeg?Expires=1722260433&Signature=ogpIhPaCiVmhvwMsu-TALTjkpc97jsGgD8DO3WA41x0n1i0h4j6-AYOZaINf-wTrwT66IGXOYccosn2O9tXMCRX26Wr~5iAvyewbRUWOof2J2yFibAvqWvPtc65a2-vYN~H-KmzJmnOJ85JXqqdXikK9h-NqS6Asra7aR-kg0-w589AlmnE5Shs3nq20wqXvrJDUH83UHjvXeimxHvsjCAU7EDw5H3orJThsKvX4Sg0vB~V1sU4ul3PqquJuOVxxWYrASqiQfA0R6vXqgC7FgU2srw5kcffANuVUTQ2U81LvKunDNVQu73ALsyToVL-pV-V0TM92SUboMpNBilL0BQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Normal metabolic (FDG) and perfusion ([15O]H2O) PET scans in a neurologically normal SS child. The red areas on the PET represent regions with high activity of metabolism (FDG) and perfusion ([15O]H2O). Yellow represents less activity. Green and blue denote progressively lower activity levels. Black represents no measurable metabolic neuronal function.
