Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot

Purpose: The purpose of this study was to determine the accuracy of conventional radiography, computed tomography (CT) and magnetic resonance imaging (MRI) in detecting foreign bodies by using cadaver feet. Materials and methods: One hundred and sixty foreign bodies consisting of 5×2-mm fresh wood,...

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Main Authors: N. Pattamapaspong, T. Srisuwan, C. Sivasomboon, M. Nasuto, P. Suwannahoy, J. Settakorn, J. Kraisarin, G. Guglielmi
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/52894
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-528942018-09-04T09:34:17Z Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot N. Pattamapaspong T. Srisuwan C. Sivasomboon M. Nasuto P. Suwannahoy J. Settakorn J. Kraisarin G. Guglielmi Medicine Purpose: The purpose of this study was to determine the accuracy of conventional radiography, computed tomography (CT) and magnetic resonance imaging (MRI) in detecting foreign bodies by using cadaver feet. Materials and methods: One hundred and sixty foreign bodies consisting of 5×2-mm fresh wood, dry wood, glass, porcelain and plastic fragments were randomly placed in the plantar soft tissue of the forefoot and sole. An additional 160 incisions were made without the insertion of foreign bodies. Radiographs, CT and MRI scans were assessed in a blinded fashion for the presence of a foreign body. Results: Overall sensitivity and specificity for foreign body detection was 29% and 100% for radiographs, 63% and 98% for CT and 58% and 100% for MRI. The sensitivity of radiography was lower in the forefoot. CT and MRI detection rates depended on the attenuation values of the foreign bodies and on the susceptibility artefact, respectively. CT was superior to MRI in identifying waterrich fresh wood. Conclusions: Radiography, CT and MRI are highly specific in detecting foreign bodies but sensitivity is poor. The detection rate depends on the type of foreign body for all techniques and on location for radiography. To identify foreign bodies with MRI, pulse sequences should be used to enhance the susceptibility artefact. In water-rich wood, as in chronically retained wood, CT is more accurate than MRI. © 2012 Springer-Verlag Italia. 2018-09-04T09:34:17Z 2018-09-04T09:34:17Z 2013-03-01 Journal 00338362 2-s2.0-84877930099 10.1007/s11547-012-0844-4 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84877930099&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/52894
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Medicine
spellingShingle Medicine
N. Pattamapaspong
T. Srisuwan
C. Sivasomboon
M. Nasuto
P. Suwannahoy
J. Settakorn
J. Kraisarin
G. Guglielmi
Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot
description Purpose: The purpose of this study was to determine the accuracy of conventional radiography, computed tomography (CT) and magnetic resonance imaging (MRI) in detecting foreign bodies by using cadaver feet. Materials and methods: One hundred and sixty foreign bodies consisting of 5×2-mm fresh wood, dry wood, glass, porcelain and plastic fragments were randomly placed in the plantar soft tissue of the forefoot and sole. An additional 160 incisions were made without the insertion of foreign bodies. Radiographs, CT and MRI scans were assessed in a blinded fashion for the presence of a foreign body. Results: Overall sensitivity and specificity for foreign body detection was 29% and 100% for radiographs, 63% and 98% for CT and 58% and 100% for MRI. The sensitivity of radiography was lower in the forefoot. CT and MRI detection rates depended on the attenuation values of the foreign bodies and on the susceptibility artefact, respectively. CT was superior to MRI in identifying waterrich fresh wood. Conclusions: Radiography, CT and MRI are highly specific in detecting foreign bodies but sensitivity is poor. The detection rate depends on the type of foreign body for all techniques and on location for radiography. To identify foreign bodies with MRI, pulse sequences should be used to enhance the susceptibility artefact. In water-rich wood, as in chronically retained wood, CT is more accurate than MRI. © 2012 Springer-Verlag Italia.
format Journal
author N. Pattamapaspong
T. Srisuwan
C. Sivasomboon
M. Nasuto
P. Suwannahoy
J. Settakorn
J. Kraisarin
G. Guglielmi
author_facet N. Pattamapaspong
T. Srisuwan
C. Sivasomboon
M. Nasuto
P. Suwannahoy
J. Settakorn
J. Kraisarin
G. Guglielmi
author_sort N. Pattamapaspong
title Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot
title_short Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot
title_full Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot
title_fullStr Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot
title_full_unstemmed Accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot
title_sort accuracy of radiography, computed tomography and magnetic resonance imaging in diagnosing foreign bodies in the foot
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84877930099&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/52894
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