Dose reduction in CT while maintaining diagnostic confidence: diagnostic reference levels at routine head, chest, and abdominal CT--IAEA-coordinated research project.
Authors
Tsapaki, VirginiaAldrich, John E
Sharma, Raju
Staniszewska, Maria Anna
Krisanachinda, Anchali
Rehani, Madan
Hufton, Alan P
Triantopoulou, Chariklia
Maniatis, Petros N
Papailiou, John
Prokop, Mathias
Affiliation
CT Department, Konstantopoulio Agia Olga Hospital, 1 Ifaistou St, 14569 Anixi, Athens, Greece. virginia@otenet.grIssue Date
2006-09
Metadata
Show full item recordAbstract
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.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 RadiologyJournal
RadiologyDOI
10.1148/radiol.2403050993PubMed ID
16837668Type
ArticleLanguage
enISSN
0033-8419ae974a485f413a2113503eed53cd6c53
10.1148/radiol.2403050993
Scopus Count
Collections
Related articles
- Towards dose reduction in CT: patient radiation dose assessment for CT examinations at university health center in Canada and comparison with national diagnostic reference levels.
- Authors: Héliou R, Normandeau L, Beaudoin G
- Issue date: 2012 Jan
- Application of European Commission reference dose levels in CT examinations in Crete, Greece.
- Authors: Tsapaki V, Kottou S, Papadimitriou D
- Issue date: 2001 Sep
- Radiation doses in adult computed tomography practice in Serbia: initial results.
- Authors: Arandjic D, Ciraj-Bjelac O, Hadnadjev D, Stojanovic S, Bozovic P, Ceklic S, Lazarevic D
- Issue date: 2014 Nov
- Identifying Institutional Diagnostic Reference Levels for CT with Radiation Dose Index Monitoring Software.
- Authors: MacGregor K, Li I, Dowdell T, Gray BG
- Issue date: 2015 Aug
- Radiation exposure during paediatric CT in Sudan: CT dose, organ and effective doses.
- Authors: Suliman II, Khamis HM, Ombada TH, Alzimami K, Alkhorayef M, Sulieman A
- Issue date: 2015 Dec