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Achievable dose reduction using iterative reconstruction for chest computed tomography: A systematic review.
den Harder, Annemarie M; Willemink, Martin J; de Ruiter, Quirina M B; Schilham, Arnold M R; Krestin, Gabriel P; Leiner, Tim; de Jong, Pim A; Budde, Ricardo P J.
Afiliación
  • den Harder AM; Department of Radiology, University Medical Center, PO Box 85500, 3508GA Utrecht, The Netherlands. Electronic address: a.m.denharder@umcutrecht.nl.
  • Willemink MJ; Department of Radiology, University Medical Center, PO Box 85500, 3508GA Utrecht, The Netherlands.
  • de Ruiter QM; Department of Vascular Surgery, University Medical Center, PO Box 85500, 3508GA Utrecht, The Netherlands.
  • Schilham AM; Department of Radiology, University Medical Center, PO Box 85500, 3508GA Utrecht, The Netherlands.
  • Krestin GP; Department of Radiology, Erasmus Medical Center, PO Box 2040, 3000CA Rotterdam, The Netherlands.
  • Leiner T; Department of Radiology, University Medical Center, PO Box 85500, 3508GA Utrecht, The Netherlands.
  • de Jong PA; Department of Radiology, University Medical Center, PO Box 85500, 3508GA Utrecht, The Netherlands.
  • Budde RP; Department of Radiology, Erasmus Medical Center, PO Box 2040, 3000CA Rotterdam, The Netherlands.
Eur J Radiol ; 84(11): 2307-13, 2015 Nov.
Article en En | MEDLINE | ID: mdl-26212557
OBJECTIVES: Iterative reconstruction (IR) allows for dose reduction with maintained image quality in CT imaging. In this systematic review the reported effective dose reductions for chest CT and the effects on image quality are investigated. METHODS: A systematic search in PubMed and EMBASE was performed. Primary outcome was the reported local reference and reduced effective dose and secondary outcome was the image quality with IR. Both non contrast-enhanced and enhanced studies comparing reference dose with reduced dose were included. RESULTS: 24 studies were included. The median number of patients per study was 66 (range 23-200) with in total 1806 patients. The median reported local reference dose of contrast-enhanced chest CT with FBP was 2.6 (range 1.5-21.8) mSv. This decreased to 1.4 (range 0.4-7.3) mSv at reduced dose levels using IR. With non contrast-enhanced chest CT the dose decreased from 3.4 (range 0.7-7.8) mSv to 0.9 (range 0.1-4.5) mSv. Objective mage quality and diagnostic confidence and acceptability remained the same or improved with IR compared to FBP in most studies while data on diagnostic accuracy was limited. CONCLUSION: Radiation dose can be reduced to less than 2 mSv for contrast-enhanced chest CT and non contrast-enhanced chest CT is possible at a submillisievert dose using IR algorithms.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Dosis de Radiación / Radiografía Torácica / Interpretación de Imagen Radiográfica Asistida por Computador / Tomografía Computarizada por Rayos X Tipo de estudio: Systematic_reviews Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Eur J Radiol Año: 2015 Tipo del documento: Article Pais de publicación: Irlanda
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Dosis de Radiación / Radiografía Torácica / Interpretación de Imagen Radiográfica Asistida por Computador / Tomografía Computarizada por Rayos X Tipo de estudio: Systematic_reviews Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Eur J Radiol Año: 2015 Tipo del documento: Article Pais de publicación: Irlanda