Imaging Sci Dent.  2018 Mar;48(1):45-49. 10.5624/isd.2018.48.1.45.

Strain elastography of tongue carcinoma using intraoral ultrasonography: A preliminary study to characterize normal tissues and lesions

Affiliations
  • 1Radiology, The Nippon Dental University Niigata Hospital, Niigata, Japan. ogura@ngt.ndu.ac.jp

Abstract

PURPOSE
The aim of this study was to evaluate the quantitative strain elastography of tongue carcinoma using intraoral ultrasonography.
MATERIALS AND METHODS
Two patients with squamous cell carcinoma (SCC) who underwent quantitative strain elastography for the diagnosis of tongue lesions using intraoral ultrasonography were included in this prospective study. Strain elastography was performed using a linear 14 MHz transducer (Aplio 300; Canon Medical Systems, Otawara, Japan). Manual light compression and decompression of the tongue by the transducer was performed to achieve optimal and consistent color coding. The variation in tissue strain over time caused by the compression exerted using the probe was displayed as a strain graph. The integrated strain elastography software allowed the operator to place circular regions of interest (ROIs) of various diameters within the elastography window, and automatically displayed quantitative strain (%) for each ROI. Quantitative indices of the strain (%) were measured for normal tissues and lesions in the tongue.
RESULTS
The average strain of normal tissue and tongue SCC in a 50-year-old man was 1.468% and 0.000%, respectively. The average strain of normal tissue and tongue SCC in a 59-year-old man was 1.007% and 0.000%, respectively.
CONCLUSION
We investigated the quantitative strain elastography of tongue carcinoma using intraoral ultrasonography. Strain elastography using intraoral ultrasonography is a promising technique for characterizing and differentiating normal tissues and SCC in the tongue.

Keyword

Elasticity Imaging Techniques; Ultrasonography; Tongue Neoplasms; Carcinoma, Squamous Cell

MeSH Terms

Carcinoma, Squamous Cell
Clinical Coding
Decompression
Diagnosis
Elasticity Imaging Techniques*
Humans
Middle Aged
Prospective Studies
Tongue Neoplasms
Tongue*
Transducers
Ultrasonography*

Figure

  • Fig. 1 Ultrasonography unit with a linear 14 MHz transducer. B. Ultrasonography probe for an intraoral ultrasonographic examination. C. Ultrasonographic examination of the tongue.

  • Fig. 2 Strain elastography of tongue carcinoma in a 50-year-old man. The average strain of the normal tissue and squamous cell carcinoma in the tongue is R and T1-3, respectively.

  • Fig. 3 Strain elastography of tongue carcinoma in a 59-year-old man. The average strain of the normal tissue and squamous cell carcinoma in the tongue is R and T1-3, respectively.


Cited by  2 articles

Usefulness of shear wave elastography in the diagnosis of oral and maxillofacial diseases
Ichiro Ogura, Ken Nakahara, Yoshihiko Sasaki, Mikiko Sue, Takaaki Oda
Imaging Sci Dent. 2018;48(3):161-165.    doi: 10.5624/isd.2018.48.3.161.

Strain elastography of palatal tumors in conjunction with intraoral ultrasonography, computed tomography, and magnetic resonance imaging: 2 case reports
Ichiro Ogura, Hiroo Toshima, Tohru Akashiba, Junya Ono, Yasuo Okada
Imaging Sci Dent. 2020;50(1):73-79.    doi: 10.5624/isd.2020.50.1.73.


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