Τίτλος:
Diagnostic reference levels and patient doses in computed tomography examinations in Greece
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The purpose of this study is to present a national survey that was performed in Greece for the establishment of national Dose Reference Levels (DRLs) for seven common adult Computed Tomography (CT) examinations. Volumetric computed tomography dose index and dose-length product values were collected from the post-data page of 65 'modern' systems that incorporate tube current modulation. Moreover, phantom dose measurements on 26 'older' systems were performed. Finally, the effective dose to the patient from a typical acquisition during these examinations was estimated. The suggested national DRLs are generally comparable with respective published values from similar European studies, with the exception of sinuses CT, which presents significantly higher values. This fact, along with the large variation of the systems' dose values that were observed even for scanners of the same type, indicates a need for further patient protection optimisation without compromising the clinical outcome. © The Author 2014.
Συγγραφείς:
Simantirakis, G.
Hourdakis, C.J.
Economides, S.
Kaisas, I.
Kalathaki, M.
Koukorava, C.
Manousaridis, G.
Pafilis, C.
Tritakis, P.
Vogiatzi, S.
Kamenopoulou, V.
Dimitriou, P.
Περιοδικό:
Radiation Protection Dosimetry
Εκδότης:
Oxford University Press
Λέξεις-κλειδιά:
adult; analysis; body burden; clinical trial; cone beam computed tomography; device failure analysis; devices; environmental exposure; equipment design; Greece; human; imaging phantom; male; multicenter study; practice guideline; radiation dose; radiation protection; reference value; standards; statistics and numerical data; whole body counting, Adult; Body Burden; Cone-Beam Computed Tomography; Environmental Exposure; Equipment Design; Equipment Failure Analysis; Greece; Guidelines as Topic; Humans; Male; Phantoms, Imaging; Radiation Dosage; Radiation Protection; Reference Values; Whole-Body Counting