Congress:
EuroSafe Imaging 2017
Keywords:
Radiation therapy / Oncology, Computer Applications-Detection, diagnosis, PET-CT, CT, Thorax, Lung, Hybrid Imaging, Action 10 - EuroSafe Imaging Stars, Action 2 - Clinical diagnostic reference levels (DRLs), Action 8 - EuroSafe Imaging Stars network and data collection, Action 3 - Optimisation, diagnostic reference levels, image quality, Cancer, Neoplasia
Authors:
E. Neri, C. Giaconi, D. Volterrani
DOI:
10.1594/esi2017/ESI-0055
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 a three months interval unenhanced chest CT,
and in second and third year a 4 -6 months interval,
as consequence the repeated CT scans represent an important increase of ionizing radiation exposure,
and risk of development of second solid cancer or hematologic disease.
With the advent of hybrid imaging,
PET/TC is gaining a potential role in the follow-up not yet validated by clinical trials nor included in the guidelines.
In our facility,
to avoid a separated imaging work-up,
a PET/CT and chest CT have been combined in a unique session by optimization of chest CT protocol.
96 Normal 0 14 false false false IT JA X-NONE
The study aimed at exploring the potential radiation dose reduction of a single session PET/CT vs a double session PET/CT plus chest CT.