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Low-dose CT of post...
Low-dose CT of postoperative pelvic fractures : a comparison with radiography
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- Eriksson, Thomas (author)
- Uppsala universitet,Radiologi
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- Berg, Per (author)
- Uppsala universitet,Ortopedi
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- Olerud, Claes (author)
- Uppsala universitet,Ortopedi
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- Shalabi, Adel (author)
- Uppsala universitet,Radiologi
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- Hänni, Mari (author)
- Uppsala universitet,Radiologi
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(creator_code:org_t)
- 2018-04-17
- 2019
- English.
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In: Acta Radiologica. - : SAGE Publications. - 0284-1851 .- 1600-0455. ; 60:1, s. 85-91
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Background Computed tomography (CT) is superior to conventional radiography (CR) for assessing internal fixation of pelvic fractures, but with a higher radiation exposure. Low-dose CT (LDCT) could possibly have a sufficient diagnostic accuracy but with a lower radiation dose. Purpose To compare postoperative diagnostic accuracy of LDCT and CR after open reduction and internal fixation of pelvic fracture. Material and Methods Twenty-one patients were examined with LDCT and CR 0-9 days after surgery. The examinations were reviewed by two musculoskeletal radiologists. Hardware, degree of fracture reduction, image quality, and reviewing time were assessed, and effective radiation dose was calculated. Inter-reader agreement was calculated. Results LDCT was significantly better than CR in determining whether hardware positioning was assessable ( P < 0.001). Acetabular congruence was assessable in all fractured patients with LDCT. In 12 of the 32 assessments with CR of patients with an acetabular fracture, joint congruence was not assessable due to overlapping hardware ( P = 0.001). Image quality was significantly higher for LDCT. Median time to review was 240 s for LDCT compared to 180 s for CR. Effective dose was 0.79 mSv for LDCT compared to 0.32 mSv for CR ( P < 0.001). Conclusion LDCT is more reliable than CR in assessing hardware position and fracture reduction. Joint congruency is sometimes not possible to assess with CR, due to overlapping hardware. The image quality is higher, but also the effective dose, with LDCT than with CR.
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)
Keyword
- CT
- Low dose computed tomography
- image quality
- pelvic fracture
- radiation dose
- radiography
Publication and Content Type
- ref (subject category)
- art (subject category)
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