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Titolo:
Evaluation of radiation exposure with singleslice- and a multislice-spiralCT system (a phantom study)
Autore:
Giacomuzzi, SM; Torbica, P; Rieger, M; Lottersberger, C; Peer, S; Peer, R; Perkmann, R; Buchberger, W; Bale, R; Mallouhi, A; Jaschke, W;
Indirizzi:
Univ Klin Radiodiagnost, Innsbruck, Austria Univ Klin Radiodiagnost Innsbruck Austria odiagnost, Innsbruck, Austria Inst Med Phys, Innsbruck, Austria Inst Med Phys Innsbruck AustriaInst Med Phys, Innsbruck, Austria Univ Klin Gefasschirurg, Innsbruck, Austria Univ Klin Gefasschirurg Innsbruck Austria sschirurg, Innsbruck, Austria
Titolo Testata:
ROFO-FORTSCHRITTE AUF DEM GEBIET DER RONTGENSTRAHLEN UND DER BILDGEBENDEN VERFAHREN
fascicolo: 7, volume: 173, anno: 2001,
pagine: 643 - 649
SICI:
1438-9029(200107)173:7<643:EOREWS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
GER
Soggetto:
COMPUTED-TOMOGRAPHY; DOSE REDUCTION; PARANASAL SINUSES; HEAD;
Keywords:
multislice spiral-CT; dose; Alderson-Rando-Phantom; single slice spiral-CT; computed tomography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Giacomuzzi, SM Univ Klin Radiol, Anichstr 35, A-6020 Innsbruck, Austria Univ Klin Radiol Anichstr 35 Innsbruck Austria A-6020 tria
Citazione:
S.M. Giacomuzzi et al., "Evaluation of radiation exposure with singleslice- and a multislice-spiralCT system (a phantom study)", ROFO-F RONT, 173(7), 2001, pp. 643-649

Abstract

Purpose: The purpose of study was to compare patient dose applying singleslice- and multislice-spiral CT. Methods: The examinations were performed with a singleslice-spiral CT (Highspeed Advantage, GE Medical Systems; Milwaukee, USA) and with a multislice CT systems (LightSpeed QX/i GE Medical Systems; Milwaukee, USA). For the determination of the radiation exposure (absorbed dose) a selection of most executed protocols (thorax-helical, abdomen-helical, petrous bone-axial, head-axial) were simulated using an Alderson Rando Phantom. The dose was determined by means of lithiumfluorid-thermoluminiscence dosimeters (TLD-GR 200). Results: For thorax and abdomen protocolshigher energy dose values could be found using a multislice CT. On the average the energy dose values were increased by 2.6 on an average in relationto single slice spiral CT. The energy dose values of the multisclice CT using head protocols could be reduced by 30 % in relation to single slice spiral CT due to suitable parameter selections. The energy dose applying a petrous bone protocol resulted in an average increase by a factor 1.5 using a multislice CT. Conclusion: Using the new multislice CT technique protocol strategies must be optimized regarding the patient doses. Users can operate critically in the sense of the radiation protection only if they are aware of the occurring dose amounts to the patient.

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Documento generato il 19/01/20 alle ore 08:54:25