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National Journal of Maxillofacial Surgery
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Year : 2019  |  Volume : 10  |  Issue : 2  |  Page : 129-133

Ultrasound elastography as a potential diagnostic aid in oral submucous fibrosis

1 Department of Dentistry, AIIMS, Patna, Bihar, India
2 Department of Radiodiagnosis, AIIMS, Patna, Bihar, India

Correspondence Address:
Dr. Amit Kumar
Department of Dentistry, AIIMS, Phulwarisharif, Patna - 801 507, Bihar
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/njms.NJMS_20_19

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Background: Oral submucous fibrosis (OSMF) is a well-recognized “potentially malignant” disorder. It mostly affects the productive population of young adults and adolescents. The diagnosis of oral submucous fibrosis is primarily clinical and subjective. The only objective diagnostic method for OSMF is tissue biopsy. This study was conducted to find the potential use of ultrasound elastography to objectively quantify the clinical presentation in accordance with severity of the clinical condition in OSMF. Materials and Methods: The study sample consisted of 27 clinically diagnosed and staged participants with OSMF. Transcutaneous ultrasonography was done by a single operator on GE Logiq E9 machine with a 6–15 MHz linear matrix probe. Color-coded scheme was used to qualitatively grade the eight different zones of oral mucosa with the use of stress–strain elastography. The grades ranged from 0 to 5, where 0 represented artifacts and color range from red to blue corresponded to varying degree of increasing tissue stiffness. Clinical stage 1, 2, and 3 corresponded to mouth opening of >30 mm, 20–30 mm, and <20 mm, respectively. The summative elastography score range as follows: 8–10, 11–14, and ≥15 represented the respective degree of tissue stiffness from soft, mild stiff to severe stiff. Results: The results obtained by Pearson's correlation between the elastographic grading and clinical grading came out to be 0.007, and it was highly significant. The sensitivity and specificity of the diagnostic method were 90.9% and 20%, respectively. Conclusion: The advantages of ultrasound elastography as a diagnostic tool over the subjective clinical method of diagnosis and staging of OSMF looks promising. Further studies should be conducted with a suitable specific transducer probe and with quantitative diagnostic elastography method.

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