MSCT and C-arm units : doses to patients in the chest angiography procedures

2008
journal article
article
dc.abstract.enBackground: Since the late 1990's, computed tomography (CT) technique has become an alternative solution to "traditional" angiographies. Angio-CT (CTA) is most frequently used in cardiovascular procedures. Evaluation of patient doses in both CTA and "traditional" cardio-angiography was the aim of the presented study. Material/Methods: The measurements were performed using three multislice CT scanners (MSCT) for exposures covering the chest area and three C-arm units for conventional coronary angiographies. The patient was represented by a Rando Man phantom and organ doses were evaluated on the basis of readings from thermoluminscent dosimeters. Results: Doses absorbed during CT angiography (CTA) were evaluated for eight exposures at "chest-angio" protocols and two exposures at "coronary" protocols. Doses absorbed during conventional coronary angiography were also evaluated for eight exposures on the three C-arm units. Conclusions: 1. In coronary angiography carried out by C-arm units patient organ doses are distributed nonuniformly inside patient body (from up to 100 mGy in area of primary x-ray beam to about zero in quite near vicinity). Therefore, a low effective dose does not mean the low absorbed doses at all. 2. Doses to patients in CTA procedures covered the chest are distributed more uniformly and are dependent on exposure pattern (i.e. configuration of projections). 3. The lowest doses in CTA covered the chest are higher then those measured at conventional cardio-angiography.pl
dc.contributor.authorStaniszewska, Maria Annapl
dc.contributor.authorJaźwinski, Jaroslawpl
dc.date.accession2019-04-29pl
dc.date.accessioned2019-04-29T13:24:49Z
dc.date.available2019-04-29T13:24:49Z
dc.date.issued2008pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalBibliogr. s. 48pl
dc.description.number1pl
dc.description.physical44-48pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume73pl
dc.identifier.articleid677317pl
dc.identifier.eissn1899-0967pl
dc.identifier.issn1733-134Xpl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/73894
dc.identifier.weblinkhttp://archiwum.inforadiologia.pl/download/index/idArt/677317.htmlpl
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa*
dc.rights.licenceCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subject.enangiographiespl
dc.subject.enmultislice CTpl
dc.subject.enC-arm unitspl
dc.subject.enpatientspl
dc.subject.endosespl
dc.subtypeArticlepl
dc.titleMSCT and C-arm units : doses to patients in the chest angiography procedurespl
dc.title.journalPolish Journal of Radiologypl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Background: Since the late 1990's, computed tomography (CT) technique has become an alternative solution to "traditional" angiographies. Angio-CT (CTA) is most frequently used in cardiovascular procedures. Evaluation of patient doses in both CTA and "traditional" cardio-angiography was the aim of the presented study. Material/Methods: The measurements were performed using three multislice CT scanners (MSCT) for exposures covering the chest area and three C-arm units for conventional coronary angiographies. The patient was represented by a Rando Man phantom and organ doses were evaluated on the basis of readings from thermoluminscent dosimeters. Results: Doses absorbed during CT angiography (CTA) were evaluated for eight exposures at "chest-angio" protocols and two exposures at "coronary" protocols. Doses absorbed during conventional coronary angiography were also evaluated for eight exposures on the three C-arm units. Conclusions: 1. In coronary angiography carried out by C-arm units patient organ doses are distributed nonuniformly inside patient body (from up to 100 mGy in area of primary x-ray beam to about zero in quite near vicinity). Therefore, a low effective dose does not mean the low absorbed doses at all. 2. Doses to patients in CTA procedures covered the chest are distributed more uniformly and are dependent on exposure pattern (i.e. configuration of projections). 3. The lowest doses in CTA covered the chest are higher then those measured at conventional cardio-angiography.
dc.contributor.authorpl
Staniszewska, Maria Anna
dc.contributor.authorpl
Jaźwinski, Jaroslaw
dc.date.accessionpl
2019-04-29
dc.date.accessioned
2019-04-29T13:24:49Z
dc.date.available
2019-04-29T13:24:49Z
dc.date.issuedpl
2008
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.additionalpl
Bibliogr. s. 48
dc.description.numberpl
1
dc.description.physicalpl
44-48
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
73
dc.identifier.articleidpl
677317
dc.identifier.eissnpl
1899-0967
dc.identifier.issnpl
1733-134X
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/73894
dc.identifier.weblinkpl
http://archiwum.inforadiologia.pl/download/index/idArt/677317.html
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa
dc.rights.licence
CC-BY-NC-ND
dc.rights.uri*
http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subject.enpl
angiographies
dc.subject.enpl
multislice CT
dc.subject.enpl
C-arm units
dc.subject.enpl
patients
dc.subject.enpl
doses
dc.subtypepl
Article
dc.titlepl
MSCT and C-arm units : doses to patients in the chest angiography procedures
dc.title.journalpl
Polish Journal of Radiology
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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