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Titolo:
Radiation exposure in multi-slice CT of the heart
Autore:
Cohnen, M; Poll, L; Puttmann, C; Ewen, K; Modder, U;
Indirizzi:
Univ Dusseldorf, MNR Klin, Inst Diagnost Radiol, D-40225 Dusseldorf, Germany Univ Dusseldorf Dusseldorf Germany D-40225 , D-40225 Dusseldorf, Germany Landesanstalt Arbetsschutz Landes NRW, Dusseldorf, Germany Landesanstalt Arbetsschutz Landes NRW Dusseldorf Germany ldorf, Germany
Titolo Testata:
ROFO-FORTSCHRITTE AUF DEM GEBIET DER RONTGENSTRAHLEN UND DER BILDGEBENDEN VERFAHREN
fascicolo: 4, volume: 173, anno: 2001,
pagine: 295 - 299
SICI:
1438-9029(200104)173:4<295:REIMCO>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPIRAL-CT; CORONARY ANGIOGRAPHY; COMPUTED-TOMOGRAPHY; RESOLUTION;
Keywords:
radiation exposure; multi-slice CT; heart; effective dose; cardiac CT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Cohnen, M Univ Dusseldorf, MNR Klin, Inst Diagnost Radiol, Moorenstr 5, D-40225 Dusseldorf, Germany Univ Dusseldorf Moorenstr 5 Dusseldorf Germany D-40225 Germany
Citazione:
M. Cohnen et al., "Radiation exposure in multi-slice CT of the heart", ROFO-F RONT, 173(4), 2001, pp. 295-299

Abstract

Purpose: To assess radiation exposure of patients undergoing Multi-Row Detector CT (Multi-Slice CT, MSCT) of the heart. Material and Methods: Four different cardiac MSCT protocols with changing slice collimation (4x1, and 4x2.5 mm), and pitch-factor (1.5, 1.8, and 4) were examined. An anthropomorphic Alderson-Rando phantom was equipped with LiF-thermoluminescent dosimeters at several organ sites, and effective doses were calculated using ICRP-weighting factors. These data were compared to data From standard MSCT of chest and abdomen. Results: Effective dose in different protocols for cardiac MSCT varies from 2.8 to 10.3 mSv (male), and from 3.6 to 12.7 mSv (female). In protocols with thin collimation and low pitch or a combination of several heart examinations, radiation exposure may be comparable to the effective dose of standard MSCT of the chest (male: 11.9 mSv, female: 12.9 mSv) or the abdomen (male: 16.1 mSv, female: 15.7 mSv). Highest organ doses were found for the female breast (up to 46.6 mGy), and the lungs (up to 36.4 mGy) with surface doses as high as 54.3 mGy. Conclusions: Cardiac MSCT adds significantly to the radiation exposure of patients and can reach the effectivedose applied by standard MSCT of chest or abdomen.

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Documento generato il 17/01/20 alle ore 20:11:17