Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

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Experimental Research
Year : 2017 | Month : April | Volume : 11 | Issue : 4 | Page : TC15 - TC19

Comparison of Ultrasonography, Magnetic Resonance Imaging and Cone Beam Computed Tomography for Detection of Foreign Bodies in Maxillofacial Region

Abbas Shokri, Mohammadreza Jamalpour, Behrouz Jafariyeh, Jalal Poorolajal, Negar kanouni Sabet

1. Assistant Professor, Dental Research Center, Department of Oral and Maxillofacial Radiology, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran. 2. Associate Professor, Dental Research Center, Department of Oral and Maxillofacial Surgery, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran. 3. Radiologist, Hamadan Buali General Hospital, Hamadan, Iran. 4. Associate Professor, Modeling of Noncommunicable Diseases Research Center, Department of Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran. 5. Postgraduate Student, Department of Periodontics, Dental School, Isfahan University of Medical Sciences, Isfahan, Iran.

Correspondence Address :
Dr. Negar Kanouni Sabet,
Postgraduate Student, Department of Periodontics, Dental School, Isfahan University of Medical Sciences, Isfahan, Iran.
E-mail: negarsabet@rocketmail.com

Abstract

Introduction: Foreign Bodies (FBs) entrapped in the maxillofacial region have a high prevalence due to trauma and accidents. Accurate localization of FBs and verifying their type and size are critical to assist the surgeon in their fast retrieval with minimal tissue damage.

Aim: To assess and compare the imaging modalities including MRI, ultrasonography and Cone Beam Computed Tomography (CBCT) for detection of different types of FBs.

Materials and Methods: In this study, four types of FBs including pieces of normal glass, barium glass, wood and pebbles with equal sizes were placed randomly in two sheep heads in different locations such as upper lip, maxillary sinus and body of mandible as FBs and subjected to MRI, ultrasound and CBCT. The images were interpreted by expert observers and the data was analysed using the stata 11 software, kappa test and chi-square test.

Results: Sensitivity of CBCT, MRI and ultrasound for detecting foreign bodies was 79.19%, 20.83% and 33.33%, respectively. None of the imaging modalities could clearly visualize wooden FBs. Among different FBs, pebbles and barium glass were detected more accurately by radiographic imaging technique. The sensitivity of CBCT, ultrasound and MRI for pebbles was 100%, 33.33% and 16.67%, respectively. The sensitivity of CBCT, ultrasound and MRI for barium glass was 100%, 33.33% and 41.69%, respectively. The sensitivity of CBCT, ultrasound and MRI for wood was 33.33%, 33.33% and 16.67%, respectively. Specificity of all three imaging modalities was 100%. Diagnostic accuracy of all three imaging modalities was higher for detection of FBs in the upper lip than those in the body of mandible, and FBs in the latter location had higher detection accuracy than those in the maxillary sinus.

Conclusion: Among the three imaging modalities, CBCT had the highest diagnostic sensitivity for the examined FBs. The highest diagnostic sensitivity was noted for pebbles and barium glass.

Keywords

Radiology, Sheep heads, X-ray imaging

How to cite this article :

Abbas Shokri, Mohammadreza Jamalpour, Behrouz Jafariyeh, Jalal Poorolajal, Negar kanouni Sabet. COMPARISON OF ULTRASONOGRAPHY, MAGNETIC RESONANCE IMAGING AND CONE BEAM COMPUTED TOMOGRAPHY FOR DETECTION OF FOREIGN BODIES IN MAXILLOFACIAL REGION. Journal of Clinical and Diagnostic Research [serial online] 2017 April [cited: 2017 Jun 27 ]; 11:TC15-TC19. Available from
http://www.jcdr.net/back_issues.asp?issn=0973-709x&year=2017&month=April&volume=11&issue=4&page=TC15-TC19&id=9736

DOI and Others

DOI: 10.7860/JCDR/2017/24523.9736


Date of Submission: Sep 23, 2016
Date of Peer Review: Nov 02, 2016
Date of Acceptance: Jan 03, 2017
Date of Publishing: Apr 01, 2017


Financial OR OTHER COMPETING INTERESTS: None.

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