Takafumi Hayashi DDS, PhD, Presenter: Nothing to Disclose

Taichi Kobayashi, Abstract Co-Author: Nothing to Disclose

Motoki Shingaki, Abstract Co-Author: Nothing to Disclose

Yutaka Nikkuni DDS, PhD, Abstract Co-Author: Nothing to Disclose

Kouji Katsura, Abstract Co-Author: Nothing to Disclose

The application of the acoustic polymer gel to the intraoral sonography provides the reliable visualization of the muscular invasion of the tongue carcinoma.

It is important to evaluate the depth of invasion in order to predict the subsequent cervical lymph node metastasis in patients with tongue carcinoma. Recent studies addressed that the depth of invasion is a reliable parameter for predicting regional nodal involvement and patient survival. In this presenntation, I will propose the three layer structures of normal tongue mucosa, i.e., (1) muccosal surface, (2) mucosal layer, (3) submucosal and muscular layers demonstrated on the intraoral sonography. Intraoral sonographic examination is performed using a small "hockey-stick" probe and an acoustic polymer gel with a thickness of 3 mm in order to obtain fine image quality, and commonly, the superficial carcinoma is demonstrated as a thickened mucosal layer.    

http://abstract.rsna.org/uploads/2014/14019334/14019334_kh1r.pdf

Hayashi, T, Kobayashi, T, Shingaki, M, Nikkuni, Y, Katsura, K, Intraoral Sonography for the Evaluation of the Depth of Invasion of the Tongue Carcinoma Using Acoustic Polymer Gel.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14019334.html