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Optimizing image qu...
Optimizing image quality, radiation dosage to the patient and to the detector in pediatric chest radiography : a phantom study of a portable digital radiography system
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- Shahgeldi, Kaveh (author)
- Uppsala universitet,Centrum för klinisk forskning, Gävleborg
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- Sjöberg, Tommy (author)
- Uppsala universitet,Institutionen för kirurgiska vetenskaper
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- Nordström, Jonny (author)
- Uppsala universitet,Centrum för klinisk forskning, Gävleborg
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- Lesanu, Radu (author)
- Gavle Cent Hosp, Dept Imaging & Funct Med, Div Diagnost, S-80188 Gavle, Region Gavlebor, Sweden
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- Svahn, Tony Martin (author)
- Uppsala universitet,Centrum för klinisk forskning, Gävleborg
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(creator_code:org_t)
- 2019-03-27
- 2019
- English.
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In: Radiation Protection Dosimetry. - : OXFORD UNIV PRESS. - 0144-8420 .- 1742-3406. ; 185:4, s. 414-420
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The present work aimed to optimize exposure settings in pediatric digital chest radiography (DR) with regard to image quality and radiation dosage. A pediatric phantom was imaged with a portable DR unit to examine different exposure settings (range: 75-109 kVp; 0.3-1.28 mAs) for patients of 10-20 kg. Fourteen experienced radiologists compared the structural image quality of the images with a reference image (85 kVp/1.28 mAs). A multiple-reader multiple-case analysis of the radiologists' interpretations was performed. Effective dose was computed and standardized exposure indices (EIs) were extracted for the different exposure settings. For the lowest tube voltage setting (75 kVp/1.28 mAs), radiation dosage could be reduced with 35% relative the reference settings without compromising image quality (p > 0.05). EI was within recommendations (250 +/- 100). Lower tube voltage in pediatric DR permitted a dose reduction at maintained quality for the physical aspects and diagnostic performance. Other weight-classes should be examined and adjusted accordingly.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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