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Regulla, D.F.

Definitions and outlook targeting X-ray exposure of patients in diagnostic imaging.

Proc. SPIE 7961:79612D (2011)
Verlagsversion DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Computer tomography (CT) is vital and currently irreplaceable in diagnostic radiology. But CT operates with ionizing radiation which may cause cancer or non-cancer diseases in humans. The degree of radiation impact depends on the dose administered by an investigation. And this is the core issue: Even CT exams executed lege artis, administer doses to patients which by magnitude are far beyond the level of hitherto known doses of conventional film-screen techniques. Patients undergoing one or multiple CT examinations, digital angiographies or interventions will be exposed to effective doses between roughly several mSv and several 100 mSv depending on type and frequency of the diagnostic investigations. From the radiation protection point of view, there is therefore the worldwide problem of formulating firm rules for the control of these high-dose investigations, as dose limits can not be established for reasons of the medical benefit. This makes the difference compared with radiation protection for occupationally exposed persons. What remains is "software", namely "justification" and "optimization". Justification requires balancing the interests between the health benefit and the potential harm of an exam which has to be responsibly executed by the physician himself; therefore the radiologists' associations are in the duty to prepare practicable rules for justification. Optimization again needs a cooperative solution, and that is the establishment of reference doses for diagnostic examinations, to be checked by the technical service of the producers' companies. Experts and authorities have been aware of the high-dose dilemma in diagnostic imaging since long. It is time for the reflection of active solutions and their implementation into practice.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Herausgeber Pelc, N.J* ; Samei, E.* ; Nishikawa, R.M.*
Schlagwörter Diagnostic radiology; X-rays; Computer-tomography; Patient exposure; Effective dose; organ dose; RBE; Radiation accidents
Sprache englisch
Veröffentlichungsjahr 2011
HGF-Berichtsjahr 0
ISSN (print) / ISBN 0277-786X
e-ISSN 1996-756X
Zeitschrift Proceedings of SPIE
Quellenangaben Band: 7961, Heft: , Seiten: , Artikelnummer: 79612D Supplement: ,
Reihe Proceedings of SPIE
Verlag SPIE
Verlagsort Bellingham, WA
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Medical Radiation Physics and Diagnostics (AMSD)
POF Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er) Radiation Sciences
PSP-Element(e) G-503600-002
DOI 10.1117/12.882729
Scopus ID 79955762287
Erfassungsdatum 2011-07-04
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