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Pediatr Radiol. 2017 Jan;47(1):82-88. doi: 10.1007/s00247-016-3720-x. Epub 2016 Nov 4.

Estimated cumulative radiation dose received by diagnostic imaging during staging and treatment of operable Ewing sarcoma 2005-2012.

Author information

1
Centre for Nuclear Medicine and PET, Department of Radiology, Haukeland University Hospital, P.O. Box 1400, 5021, Bergen, Norway. boel.johnsen@helse-bergen.no.
2
Department of Oncology, Medical Physics Section, Haukeland University Hospital, Bergen, Norway.
3
Department of Oncology, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.
4
Department of Radiology, Paediatric Section, Haukeland University Hospital, Bergen, Norway.
5
Department of Clinical Medicine, University of Bergen, Bergen, Norway.
6
Department of Surgery, Orthopaedic Section, Haukeland University Hospital, Bergen, Norway.
7
Centre for Nuclear Medicine and PET, Department of Radiology, Haukeland University Hospital, P.O. Box 1400, 5021, Bergen, Norway.

Abstract

BACKGROUND:

Patients with Ewing sarcoma are subject to various diagnostic procedures that incur exposure to ionising radiation.

OBJECTIVE:

To estimate the radiation doses received from all radiologic and nuclear imaging episodes during diagnosis and treatment, and to determine whether 18F-fluorodeoxyglucose positron emission tomography - computed tomography (18F-FDG PET-CT) is a major contributor of radiation.

MATERIALS AND METHODS:

Twenty Ewing sarcoma patients diagnosed in Norway in 2005-2012 met the inclusion criteria (age <30 years, operable disease, uncomplicated chemotherapy and surgery, no metastasis or residual disease within a year of diagnosis). Radiation doses from all imaging during the first year were calculated for each patient.

RESULTS:

The mean estimated cumulative radiation dose for all patients was 34 mSv (range: 6-70), radiography accounting for 3 mSv (range: 0.2-12), CT for 13 mSv (range: 2-28) and nuclear medicine for 18 mSv (range: 2-47). For the patients examined with PET-CT, the mean estimated cumulative effective dose was 38 mSv, of which PET-CT accounted for 14 mSv (37%).

CONCLUSION:

There was large variation in number and type of examinations performed and also in estimated cumulative radiation dose. The mean radiation dose for patients examined with PET-CT was 23% higher than for patients not examined with PET-CT.

KEYWORDS:

18F-fluorodeoxyglucose positron emission tomography – computed tomography (18F-FDG PET-CT); Adolescents; Children; Computed tomography; Ewing sarcoma; Oncological treatment protocol; Radiation dose; Radiography

PMID:
27815616
DOI:
10.1007/s00247-016-3720-x
[Indexed for MEDLINE]

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