Dose reduction in CT while maintaining diagnostic confidence: diagnostic reference levels at routine head, chest, and abdominal CT--IAEA-coordinated research project.

2.50
Hdl Handle:
http://hdl.handle.net/10541/72516
Title:
Dose reduction in CT while maintaining diagnostic confidence: diagnostic reference levels at routine head, chest, and abdominal CT--IAEA-coordinated research project.
Authors:
Tsapaki, Virginia; Aldrich, John E; Sharma, Raju; Staniszewska, Maria Anna; Krisanachinda, Anchali; Rehani, Madan; Hufton, Alan P; Triantopoulou, Chariklia; Maniatis, Petros N; Papailiou, John; Prokop, Mathias
Abstract:
PURPOSE: To measure radiation doses for computed tomography (CT) of the head, chest, and abdomen and compare them with the diagnostic reference levels, as part of the International Atomic Energy Agency Research coordination project. MATERIALS AND METHODS: The local ethics committees of all participating institutions approved the study protocol. Written informed consent was obtained from all patients. All scanners were helical single-section or multi-detector row CT systems. Six hundred thirty-three patients undergoing head (n = 97), chest (n = 243), or abdominal (n = 293) CT were included. Collected data included patient height, weight, sex, and age; tube voltage and tube current-time product settings; pitch; section thickness; number of sections; weighted or volumetric CT dose index; and dose-length product (DLP). The effective dose was also estimated and served as collective dose estimation data. RESULTS: Mean volumetric CT dose index and DLP values were below the European diagnostic reference levels: 39 mGy and 544 mGy . cm, respectively, at head CT; 9.3 mGy and 348 mGy . cm, respectively, at chest CT; and 10.4 mGy and 549 mGy . cm, respectively, at abdominal CT. Estimated effective doses were 1.2, 5.9, and 8.2 mSv, respectively. CONCLUSION: Comparison of CT results with diagnostic reference levels revealed the need for revisions, partly because the newer scanners have improved technology that facilitates lower patient doses.
Affiliation:
CT Department, Konstantopoulio Agia Olga Hospital, 1 Ifaistou St, 14569 Anixi, Athens, Greece. virginia@otenet.gr
Citation:
Dose reduction in CT while maintaining diagnostic confidence: diagnostic reference levels at routine head, chest, and abdominal CT--IAEA-coordinated research project. 2006, 240 (3):828-34 Radiology
Journal:
Radiology
Issue Date:
Sep-2006
URI:
http://hdl.handle.net/10541/72516
DOI:
10.1148/radiol.2403050993
PubMed ID:
16837668
Type:
Article
Language:
en
ISSN:
0033-8419
Appears in Collections:
All Christie Publications

Full metadata record

DC FieldValue Language
dc.contributor.authorTsapaki, Virginia-
dc.contributor.authorAldrich, John E-
dc.contributor.authorSharma, Raju-
dc.contributor.authorStaniszewska, Maria Anna-
dc.contributor.authorKrisanachinda, Anchali-
dc.contributor.authorRehani, Madan-
dc.contributor.authorHufton, Alan P-
dc.contributor.authorTriantopoulou, Chariklia-
dc.contributor.authorManiatis, Petros N-
dc.contributor.authorPapailiou, John-
dc.contributor.authorProkop, Mathias-
dc.date.accessioned2009-07-06T08:35:11Z-
dc.date.available2009-07-06T08:35:11Z-
dc.date.issued2006-09-
dc.identifier.citationDose reduction in CT while maintaining diagnostic confidence: diagnostic reference levels at routine head, chest, and abdominal CT--IAEA-coordinated research project. 2006, 240 (3):828-34 Radiologyen
dc.identifier.issn0033-8419-
dc.identifier.pmid16837668-
dc.identifier.doi10.1148/radiol.2403050993-
dc.identifier.urihttp://hdl.handle.net/10541/72516-
dc.description.abstractPURPOSE: To measure radiation doses for computed tomography (CT) of the head, chest, and abdomen and compare them with the diagnostic reference levels, as part of the International Atomic Energy Agency Research coordination project. MATERIALS AND METHODS: The local ethics committees of all participating institutions approved the study protocol. Written informed consent was obtained from all patients. All scanners were helical single-section or multi-detector row CT systems. Six hundred thirty-three patients undergoing head (n = 97), chest (n = 243), or abdominal (n = 293) CT were included. Collected data included patient height, weight, sex, and age; tube voltage and tube current-time product settings; pitch; section thickness; number of sections; weighted or volumetric CT dose index; and dose-length product (DLP). The effective dose was also estimated and served as collective dose estimation data. RESULTS: Mean volumetric CT dose index and DLP values were below the European diagnostic reference levels: 39 mGy and 544 mGy . cm, respectively, at head CT; 9.3 mGy and 348 mGy . cm, respectively, at chest CT; and 10.4 mGy and 549 mGy . cm, respectively, at abdominal CT. Estimated effective doses were 1.2, 5.9, and 8.2 mSv, respectively. CONCLUSION: Comparison of CT results with diagnostic reference levels revealed the need for revisions, partly because the newer scanners have improved technology that facilitates lower patient doses.en
dc.language.isoenen
dc.subject.meshFemale-
dc.subject.meshHead-
dc.subject.meshHumans-
dc.subject.meshMale-
dc.subject.meshMiddle Aged-
dc.subject.meshRadiation Dosage-
dc.subject.meshRadiography, Abdominal-
dc.subject.meshRadiography, Thoracic-
dc.subject.meshReference Values-
dc.subject.meshReproducibility of Results-
dc.subject.meshTomography, X-Ray Computed-
dc.titleDose reduction in CT while maintaining diagnostic confidence: diagnostic reference levels at routine head, chest, and abdominal CT--IAEA-coordinated research project.en
dc.typeArticleen
dc.contributor.departmentCT Department, Konstantopoulio Agia Olga Hospital, 1 Ifaistou St, 14569 Anixi, Athens, Greece. virginia@otenet.gren
dc.identifier.journalRadiologyen

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