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Skeletal Radiology
Published in: Skeletal Radiology 9/2014

01-09-2014 | Scientific Article

Total hip prosthesis CT with single-energy projection-based metallic artifact reduction: impact on the visualization of specific periprosthetic soft tissue structures

Authors: Pedro Augusto Gondim Teixeira, Jean-Baptiste Meyer, Cedric Baumann, Ariane Raymond, François Sirveaux, Henry Coudane, Alain Blum

Published in: Skeletal Radiology | Issue 9/2014

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Abstract

Objectives

To compare the image quality of CT with iterative reconstruction alone and in association with projection-based single-energy metal artifact reduction (SEMAR) for the visualization of specific periarticular soft tissue structures in patients with hip prostheses.

Methods

CT studies from 48 consecutive patients with a hip prosthesis (24 unilateral and 24 bilateral) were retrospectively reconstructed using two different methods: iterative reconstruction (IR) alone and IR associated with SEMAR. The influence of metallic artifacts on the identification of various periarticular structures was evaluated subjectively by two readers. The image quality was compared in patients with unilateral and bilateral prostheses.

Results

Visualization of periprosthetic soft tissue was significantly improved by the SEMAR algorithm (p < 0.0001). When SEMAR was associated with IR, the gluteus minimus and medius tendons, obturator internus muscle, prostate/uterus and bladder could be seen with medium or high confidence. There were no significant differences in image quality between patients with unilateral or bilateral prosthesis when SEMAR was used (p > 0.2). This algorithm increased the detection of periarticular masses by 30 %.

Conclusion

SEMAR significantly improves the image quality of periarticular soft-tissue structures in patients with hip prostheses.
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Metadata
Title
Total hip prosthesis CT with single-energy projection-based metallic artifact reduction: impact on the visualization of specific periprosthetic soft tissue structures
Authors
Pedro Augusto Gondim Teixeira
Jean-Baptiste Meyer
Cedric Baumann
Ariane Raymond
François Sirveaux
Henry Coudane
Alain Blum
Publication date
01-09-2014
Publisher
Springer Berlin Heidelberg
Published in
Skeletal Radiology / Issue 9/2014
Print ISSN: 0364-2348
Electronic ISSN: 1432-2161
DOI
https://doi.org/10.1007/s00256-014-1923-5

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