AP diameter shows the strongest correlation with CTDI and DLP in abdominal and chest CT.
Affiliation
Radiography, Institute of Health Care, University of Malta, Malta. francis.zarb@um.edu.mtIssue Date
2010MeSH
AdolescentAdult
Aged
Body Burden
Computer Simulation
Female
Humans
Male
Middle Aged
Models, Theoretical
Radiation Dosage
Radiography, Abdominal
Radiography, Thoracic
Radiometry
Statistics as Topic
Metadata
Show full item recordCitation
AP diameter shows the strongest correlation with CTDI and DLP in abdominal and chest CT. 2010, 140 (3):266-73 Radiat Prot DosimetryPublisher
Oxford JournalsJournal
Radiation protection dosimetryDOI
10.1093/rpd/ncq115PubMed ID
20332128Abstract
The purpose of this study is to investigate the relationships among cross-sectional diameters, weight and computed tomography (CT) dose descriptors (CTDI and DLP) to identify which is best used as a measure for the establishment of DRLs in CT. Data (gender, weight, cross-sectional diameters, dose descriptors) from 56 adult patients attending for either a CT examination of the abdomen or chest was obtained from two spiral CT units using automatic milliampere modulation. The AP diameter was demonstrated as the main contributing factor influencing the dose in CT (CTDI: r(2) = 0.269, p-value < or =0.001; DLP: r(2) = 0.260, p-value < or =0.001) since it has a greater correlation with radiation dose than body weight and can thus be its substitute in dose-reduction strategies and establishment of DRLs. The advantages of using the AP diameter are that it can easily be measured prior to scanning or retrospectively from previous CT images. However, further studies on the practicality of this approach are recommended.Item Type
ArticleLanguage
enISSN
1742-3406ae974a485f413a2113503eed53cd6c53
10.1093/rpd/ncq115
Scopus Count
Collections
Related articles
- Radiation exposure in body computed tomography examinations of trauma patients.
- Authors: Kortesniemi M, Kiljunen T, Kangasmäki A
- Issue date: 2006 Jun 21
- Towards establishment of the national reference dose levels from computed tomography examinations in Tanzania.
- Authors: Ngaile JE, Msaki P, Kazema R
- Issue date: 2006 Jun
- Multidetector computed tomography chest examinations with low-kilovoltage protocols in adults: effect on image quality and radiation dose.
- Authors: Kim MJ, Park CH, Choi SJ, Hwang KH, Kim HS
- Issue date: 2009 May-Jun
- Evaluation of a radiation dose reduction strategy for pediatric chest CT.
- Authors: Kim JE, Newman B
- Issue date: 2010 May
- Dose reduction for abdominal and pelvic MDCT after change to graduated weight-based protocol for selecting quality reference tube current, peak kilovoltage, and slice collimation.
- Authors: Herts BR, Baker ME, Obuchowski N, Primak A, Schneider E, Rhana H, Dong F
- Issue date: 2013 Jun