Background/Introduction
CT imaging in pediatric patients requires the so called “gently imaging” approach.
As a matter of fact cancer risk increases after CT scans in childhood,
and the individual risk is associated to multiple factors,
of which the most relevant is the radiation dose.
Of particular relevance are the risks of leukaemia and brain tumours,
since the red bone marrow and brain are highly radiosensitive tissues,
especially in childhood.
Considering the guidelines for the follow-up of osteosarcoma and Ewing’s sarcoma,
which include in the first year...
Description of activity and work performed
This is a prospective cohort study.
Since 2010 sixty-six follow-up PET/CT exams have been performed in 27 childrens and young adults (5-30 y; mean 23) affected by oncologic disease,
with elevated lung metastasis trophism (osteosarcoma,
Ewing’s sarcoma,
soft tissue sarcoma,
Wilms tumor).
CT scans were obtained with 120 kV,
100 mAs,
Noise Index 25,
row thickness 2,5 mm,
rotation time = 0,5s and DFOV = 38 cm; each serie was reconstructed with a CT lung algorithm and advanced statistical iterative reconstructions (ASIR; GE/Healthcare).
The measure...
Conclusion and Recommendations
96 Normal 0 14 false false false IT JA X-NONE
The reconstruction of chest PET/CT (with dedicated algorithm and ASIR),
to optimize radiological interpretation,
allow to avoid further chest CT,
to reduce the single session and the cumulative radiation dose in the follow up of children with oncological disease.
Personal/Organisational information
Department Universitary Section ofRadiodiagnostic 3
Diagnostic Imaging Department,AOUP
S.
Chiara Hospital,Via Roma67 - 56126Pisa,
Italy
University of Pisa
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WHO Headquarters,
Geneva,
2008.
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Medical Radiation Exposure of the U.S.
Population Greatly Increased since the Early 1980s.
NCRP Report No.
160 (Press Release),
2009.
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Etard,
et al,
Exposition de la population française aux rayonnements ionisants liée aux actes de diagnostic médical en 2007.
IRSN Rapport,
2007.
[5]...