Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodies

Background and Objective: Detection of radiolucent soft-tissue foreign bodies is a challenging problem, which is especially further complicated when retained foreign body is highly suggested by clinicians but radiography is negative. So, blind exploration is sometimes hazardous for patients. The pur...

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Main Authors: Morteza Tahmasebi, Hamdollah Zareizadeh, Azim Motamedfar
Format: Article
Language:English
Published: Thieme Medical and Scientific Publishers Pvt. Ltd. 2014-01-01
Series:Indian Journal of Radiology and Imaging
Subjects:
Online Access:http://www.ijri.org/article.asp?issn=0971-3026;year=2014;volume=24;issue=2;spage=196;epage=200;aulast=Tahmasebi
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author Morteza Tahmasebi
Hamdollah Zareizadeh
Azim Motamedfar
author_facet Morteza Tahmasebi
Hamdollah Zareizadeh
Azim Motamedfar
author_sort Morteza Tahmasebi
collection DOAJ
description Background and Objective: Detection of radiolucent soft-tissue foreign bodies is a challenging problem, which is especially further complicated when retained foreign body is highly suggested by clinicians but radiography is negative. So, blind exploration is sometimes hazardous for patients. The purpose of this study was to determine the accuracy of ultrasonography (USG) in detecting radiolucent soft-tissue foreign bodies in the extremities. Materials and Methods: From November 2011 to January 2012, patients with clinically suspected radiolucent soft-tissue foreign body and negative radiography were evaluated by USG with a 12-MHz linear array transducer. The patients with positive clinical and USG examination were included in our study and underwent exploration or USG removal. Results: Fifty-one patients underwent foreign body removal under ultrasonography-guided or surgical exploration and 47 patients had foreign body (31, 12, 3, and 1 case had thorn, wood, glass, and plastic, respectively). Ultrasound was positive in 50 patients. USG falsely predicted the presence of foreign body in four cases and was falsely negative in one of the cases. Accuracy, sensitivity, and positive predictive value were determined as 90.2%, 97.9%, and 92%, respectively. Conclusions: The real-time high-frequency USG is a highly sensitive and accurate tool for detecting and removing radiolucent foreign bodies which are difficult to be visualized by routine radiography.
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spelling doaj.art-924b3f54b1844f70a6b242ff3e66ef592022-12-21T23:13:09ZengThieme Medical and Scientific Publishers Pvt. Ltd.Indian Journal of Radiology and Imaging0971-30261998-38082014-01-01242196200Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodiesMorteza TahmasebiHamdollah ZareizadehAzim MotamedfarBackground and Objective: Detection of radiolucent soft-tissue foreign bodies is a challenging problem, which is especially further complicated when retained foreign body is highly suggested by clinicians but radiography is negative. So, blind exploration is sometimes hazardous for patients. The purpose of this study was to determine the accuracy of ultrasonography (USG) in detecting radiolucent soft-tissue foreign bodies in the extremities. Materials and Methods: From November 2011 to January 2012, patients with clinically suspected radiolucent soft-tissue foreign body and negative radiography were evaluated by USG with a 12-MHz linear array transducer. The patients with positive clinical and USG examination were included in our study and underwent exploration or USG removal. Results: Fifty-one patients underwent foreign body removal under ultrasonography-guided or surgical exploration and 47 patients had foreign body (31, 12, 3, and 1 case had thorn, wood, glass, and plastic, respectively). Ultrasound was positive in 50 patients. USG falsely predicted the presence of foreign body in four cases and was falsely negative in one of the cases. Accuracy, sensitivity, and positive predictive value were determined as 90.2%, 97.9%, and 92%, respectively. Conclusions: The real-time high-frequency USG is a highly sensitive and accurate tool for detecting and removing radiolucent foreign bodies which are difficult to be visualized by routine radiography.http://www.ijri.org/article.asp?issn=0971-3026;year=2014;volume=24;issue=2;spage=196;epage=200;aulast=TahmasebiAccuracy; foreign body; radiolucent soft tissue; ultrasonography
spellingShingle Morteza Tahmasebi
Hamdollah Zareizadeh
Azim Motamedfar
Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodies
Indian Journal of Radiology and Imaging
Accuracy; foreign body; radiolucent soft tissue; ultrasonography
title Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodies
title_full Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodies
title_fullStr Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodies
title_full_unstemmed Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodies
title_short Accuracy of ultrasonography in detecting radiolucent soft-tissue foreign bodies
title_sort accuracy of ultrasonography in detecting radiolucent soft tissue foreign bodies
topic Accuracy; foreign body; radiolucent soft tissue; ultrasonography
url http://www.ijri.org/article.asp?issn=0971-3026;year=2014;volume=24;issue=2;spage=196;epage=200;aulast=Tahmasebi
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AT hamdollahzareizadeh accuracyofultrasonographyindetectingradiolucentsofttissueforeignbodies
AT azimmotamedfar accuracyofultrasonographyindetectingradiolucentsofttissueforeignbodies