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Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions

BACKGROUND: The aim of this study was to investigate diffusion-weighted imaging (DWI) in the oral and maxillofacial region, with a special focus on the usefulness of apparent diffusion coefficient (ADC) maps and maximum intensity projection (MIP) for characterization of normal structures and lesions...

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Autores principales: Ogura, Ichiro, Sasaki, Yoshihiko, Kameta, Ayako, Sue, Mikiko, Oda, Takaaki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Termedia Publishing House 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5894033/
https://www.ncbi.nlm.nih.gov/pubmed/29657621
http://dx.doi.org/10.12659/PJR.902524
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author Ogura, Ichiro
Sasaki, Yoshihiko
Kameta, Ayako
Sue, Mikiko
Oda, Takaaki
author_facet Ogura, Ichiro
Sasaki, Yoshihiko
Kameta, Ayako
Sue, Mikiko
Oda, Takaaki
author_sort Ogura, Ichiro
collection PubMed
description BACKGROUND: The aim of this study was to investigate diffusion-weighted imaging (DWI) in the oral and maxillofacial region, with a special focus on the usefulness of apparent diffusion coefficient (ADC) maps and maximum intensity projection (MIP) for characterization of normal structures and lesions. MATERIAL/METHODS: Thirty-five patients who underwent magnetic resonance imaging (MRI) for diagnosis of oral and maxillofacial lesions were included in this prospective study. DWI was performed on a 1.5 T unit, with b factor of 0 and 800 s/mm(2); moreover, ADC maps were generated. ADC values were measured for normal structures, odontogenic infections, squamous cell carcinomas (SCC), and hemangiomas. RESULTS: As regards the normal structures, the mean ADC value of the cerebrospinal fluid (3.65±0.60×10(–3) mm(2)/s) in the upper neck area was higher than that of the spinal cord (0.74±0.15×10(–3) mm(2)/s, P=0.000), lymph nodes (0.87±0.17×10(–3) mm(2)/s, P=0.000), and Waldeyer’s ring (0.92±0.29×10(–3) mm(2)/s, P=0.000). The mean ADC value of hemangiomas (1.52±0.31×10(–3) mm(2)/s) was higher than that of odontogenic infections (0.85±0.36×10(–3) mm(2)/s, P=0.034) and SCC (1.38±0.22×10(–3) mm(2)/s, P=0.840). Furthermore, MIP (DWI) showed the normal structures and lesions in the oral and maxillofacial region in an improved way. CONCLUSIONS: DWI, ADC maps, and MIP can be used to characterize and differentiate normal structures and lesions in the oral and maxillofacial region.
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spelling pubmed-58940332018-04-13 Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions Ogura, Ichiro Sasaki, Yoshihiko Kameta, Ayako Sue, Mikiko Oda, Takaaki Pol J Radiol Original Article BACKGROUND: The aim of this study was to investigate diffusion-weighted imaging (DWI) in the oral and maxillofacial region, with a special focus on the usefulness of apparent diffusion coefficient (ADC) maps and maximum intensity projection (MIP) for characterization of normal structures and lesions. MATERIAL/METHODS: Thirty-five patients who underwent magnetic resonance imaging (MRI) for diagnosis of oral and maxillofacial lesions were included in this prospective study. DWI was performed on a 1.5 T unit, with b factor of 0 and 800 s/mm(2); moreover, ADC maps were generated. ADC values were measured for normal structures, odontogenic infections, squamous cell carcinomas (SCC), and hemangiomas. RESULTS: As regards the normal structures, the mean ADC value of the cerebrospinal fluid (3.65±0.60×10(–3) mm(2)/s) in the upper neck area was higher than that of the spinal cord (0.74±0.15×10(–3) mm(2)/s, P=0.000), lymph nodes (0.87±0.17×10(–3) mm(2)/s, P=0.000), and Waldeyer’s ring (0.92±0.29×10(–3) mm(2)/s, P=0.000). The mean ADC value of hemangiomas (1.52±0.31×10(–3) mm(2)/s) was higher than that of odontogenic infections (0.85±0.36×10(–3) mm(2)/s, P=0.034) and SCC (1.38±0.22×10(–3) mm(2)/s, P=0.840). Furthermore, MIP (DWI) showed the normal structures and lesions in the oral and maxillofacial region in an improved way. CONCLUSIONS: DWI, ADC maps, and MIP can be used to characterize and differentiate normal structures and lesions in the oral and maxillofacial region. Termedia Publishing House 2017-10-20 /pmc/articles/PMC5894033/ /pubmed/29657621 http://dx.doi.org/10.12659/PJR.902524 Text en Copyright © Polish Medical Society of Radiology 2017 https://creativecommons.org/licenses/by-nc-nd/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivatives 4.0 International (CC BY-NC-ND 4.0). License allowing third parties to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
spellingShingle Original Article
Ogura, Ichiro
Sasaki, Yoshihiko
Kameta, Ayako
Sue, Mikiko
Oda, Takaaki
Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions
title Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions
title_full Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions
title_fullStr Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions
title_full_unstemmed Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions
title_short Diffusion-Weighted Imaging in the Oral and Maxillofacial Region: Usefulness of Apparent Diffusion Coefficient Maps and Maximum Intensity Projection for Characterization of Normal Structures and Lesions
title_sort diffusion-weighted imaging in the oral and maxillofacial region: usefulness of apparent diffusion coefficient maps and maximum intensity projection for characterization of normal structures and lesions
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5894033/
https://www.ncbi.nlm.nih.gov/pubmed/29657621
http://dx.doi.org/10.12659/PJR.902524
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