To review the main pediatric oncological pathologies evaluated with PET/CT. To learn the PET/CT acquisition protocol for children and radiation dose. To describe the normal pediatric tomographic anatomy and variants. To illustrate the normal 18FDG uptake distribution and physiological variants in children.
The addition of PET modality is having an undeniable impact in clinical neurology,
cardiology and especially oncology, as the results influence the treatment directly. Clinical impact of PET and PET/CT has been calculated in different patient series and varies from 30 to 50% 1 .
It is most likely to become the internationalimaging methodin pediatric patients.
experience in pediatric patients is being gained slower than in adults as its acquisition is based on ionizing radiation.
Findings and procedure details
The most frequent pathologies studied with PET/CT 2 are listed in Table 1 Pre-scanning process Prior to 18 F-FDG intravenous administration: Gather relevant patient’s medical history including known or suspected neoplasm. Current symptoms and medication. Previous imaging tests results. Treatment cycles with the exact dates. History of recent infectious disease or inflammation processes. Known urinary tract abnormalities. Presence of central lines or drainage devices. Patient Preparation Avoid...
PET/CT in pediatric population has shown to be useful for staging,
assessing therapy response and long term follow-up of a wide variety of neoplasms. Because of the clinical impact of PET/CT in pediatric oncology this imaging modality is becoming the gold standard test. Therefore,it is essential to be knowledgeable about the 18F-FDG physiological uptake,
anatomical variants uptake,
artifacts and potential pitfalls when reading a PET/CT scan.
In order to diminish the number of false-positive...
Contact details: Dra Claudia Gómez PET/CT attendant.
CT Scanner del Sur,
Mexico Doppler ultrasound fellow resident.
Departament of Radiology,
Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán,
Mexico e-mail firstname.lastname@example.org Dr Luis Alberto Ruiz Elizondo PET/CT attendant.CT Scanner del Sur,
Mexico PET/CT section Dr Jose Luis Criales Cortes Chair of GrupoCT Scanner,
Mexico Dra Mary Carmen Herrera Zarza PET/CT chief physician.
CT Scanner del Sur,...
Impacto clínico de la PET en pediatría.
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Guidelines for 18F-FDG PET and PET-CT imaging in paediatric oncology.
Eur J Nucl Med Mol Imaging 2008. Shammas A,
Pediatric FDG PET/CT: Physiologic uptake,
and benign conditions.
RadioGraphics 2009;29:1467-1486. Fahey F.
Dosimetry of pediatric PET/CT.
J Nucl Med.
2009;50:1483-1491. Nakamoto Y,