Standardization and optimization of CT protocols to achieve low dose.

Autor:	Trattner S; Department of Medicine, Division of Cardiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, NY., Pearson GDN; Department of Radiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, NY., Chin C; Departments of Radiology and Biomedical Engineering, University of California, San Francisco., Cody DD; Department of Imaging Physics, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX., Gupta R; Department of Radiology, Massachusetts General Hospital, Boston, MA., Hess CP; Departments of Radiology and Biomedical Engineering, University of California, San Francisco., Kalra MK; Department of Radiology, Massachusetts General Hospital, Boston, MA., Kofler JM Jr; Department of Radiology, Mayo Clinic, Rochester, MN., Krishnam MS; Department of Radiology, University of California Los Angeles., Einstein AJ; Department of Medicine, Division of Cardiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, NY.; Department of Radiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, NY.
Jazyk:	angličtina
Zdroj:	Journal of the American College of Radiology : JACR [J Am Coll Radiol] 2014 Mar; Vol. 11 (3), pp. 271-278.
DOI:	10.1016/j.jacr.2013.10.016
Abstrakt:	The increase in radiation exposure due to CT scans has been of growing concern in recent years. CT scanners differ in their capabilities, and various indications require unique protocols, but there remains room for standardization and optimization. In this paper, the authors summarize approaches to reduce dose, as discussed in lectures constituting the first session of the 2013 UCSF Virtual Symposium on Radiation Safety and Computed Tomography. The experience of scanning at low dose in different body regions, for both diagnostic and interventional CT procedures, is addressed. An essential primary step is justifying the medical need for each scan. General guiding principles for reducing dose include tailoring a scan to a patient, minimizing scan length, use of tube current modulation and minimizing tube current, minimizing tube potential, iterative reconstruction, and periodic review of CT studies. Organized efforts for standardization have been spearheaded by professional societies such as the American Association of Physicists in Medicine. Finally, all team members should demonstrate an awareness of the importance of minimizing dose. (Copyright © 2014 American College of Radiology. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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