ArticlePolish journal of radiology2014
Evaluation of radiation doses delivered in different chest CT protocols.
Article in Polish journal of radiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 13 citations in OpenAlex.
- Pulmonary surveillance in inborn errors of immunity: current challenges and emerging approaches.Frontiers in immunology · 2026Review
- Multi-factorial considerations for intra-thoracic lymph node evaluations of healthy cats on computed tomographic images.BMC veterinary research · 2021Article
- Tensor Gradient L₀-Norm Minimization-Based Low-Dose CT and Its Application to COVID-19.IEEE transactions on instrumentation and measurement · 2021Article
- The Lung in Primary Immunodeficiencies: New Concepts in Infection and Inflammation.Frontiers in immunology · 2018Review
- Letting go of what we believe about radiation and the risk of cancer in children.Pediatric radiology · 2017Article
- Pilot study of low-dose nonenhanced computed tomography with iterative reconstruction for diagnosis of urinary stones.Korean journal of urology · 2014Article
- Assessment of Effective Dose Associated with Coronary Computed Tomography Angiography in Isfahan Province, Iran.Journal of medical signals and sensorsArticle
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThere are differences in the reference diagnostic levels for the computed tomography (CT) of the chest as cited in different literature sources. The doses are expressed either in weighted CT dose index (CTDIVOL) used to express the dose per slice, dose-length product (DLP), and effective dose (E). The purpose of this study was to assess the radiation dose used in Low Dose Computer Tomography (LDCT) of the chest in comparison with routine chest CT examinations as well as to compare doses delivered in low dose chest CT with chest X-ray doses. MATERIAL/
methodsCTDIVOL and DLP doses were taken to analysis from routine CT chest examinations (64 MDCT TK LIGHT SPEED GE Medical System) performed in 202 adult patients with FBP reconstruction: 51 low dose, 106 helical, 20 angio CT, and 25 high resolution CT protocols, as well as 19 helical protocols with iterative ASIR reconstruction. The analysis of chest X-ray doses was made on the basis of reports from 44 examinations.
resultsMean values of CTDIVOL and DLP were, respectively: 2.1 mGy and 85.1 mGy·cm, for low dose, 9.7 mGy and 392.3 mGy·cm for helical, 18.2 mGy and 813.9 mGy·cm for angio CT, 2.3 mGy and 64.4 mGy·cm for high resolution CT, 8.9 mGy. and 317.6 mGy·cm for helical ASIR protocols. Significantly lower CTDIVOL and DLP values were observed for low dose and high resolution CT versus the remaining CT protocols; doses delivered in CT ASIR protocols were also lower (80-81%). The ratio between medial doses in low dose CT and chest X-ray was 11.56.
conclusionsRadiation dose in extended chest LDCT with parameters allowing for identification of mediastinal structures and adrenal glands is still much lower than that in standard CT protocols. Effective doses predicted for LDCT may exceed those used in chest X-ray examinations by a factor of 4 to 12, depending on LDCT scan parameters. Our results, as well as results from other authors, suggest a possibility of reducing the dose by means of iterative reconstruction. Efforts towards further dose reduction which would permit replacing chest X-ray with low dose CT in certain research screening projects should be encouraged.
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