Akifumi Fujita MD, Presenter: Nothing to Disclose

Hiroyuki Fujii MD, Abstract Co-Author: Nothing to Disclose

Karen Buch MD, Abstract Co-Author: Nothing to Disclose

Anna Yang, Abstract Co-Author: Nothing to Disclose

Yukio Kimura MD, Abstract Co-Author: Nothing to Disclose

Osamu Sakai MD, PhD, Abstract Co-Author: Speaker, Bracco Group Speaker, KYORIN Holdings, Inc Speaker, Eisai Co, Ltd

Hideharu Sugimoto MD, Abstract Co-Author: Nothing to Disclose

It is often difficult to visualize peripheral cranial nerves in the head and neck on conventional MRI. Furthermore, MR sialography can only depict T2 high intensity structures. The DESSWE sequence is a new MR imaging technique which can delineate the course of both peripheral cranial nerves and salivary ducts as high intensity structures in the salivary gland regions. The purpose of this exhibit is: 1. To illustrate the normal anatomy and various pathologies of the salivary glands on a DESSWE sequence. 2. To discuss whether DESSWE sequence will provide us quality diagnostic images for augmentation of diagnostic confidence in salivary gland imaging.

1. Review the technique and utilization of DESSWE sequence in the head and neck 2. Review of imaging findings of salivary gland pathology using DESSWE     - Normal anatomy of intraparotid facial nerve and salivary ducts     - Inflammatory conditions: parotitis, Sjögren syndrome, sialodochitis fibrinosa, sialolithiasis, etc     - Tumors: benign tumors, malignant tumors, facial nerve shcwannoma, lymphoepithelial cyst, etc 3. Illustrate the relationship of the intraparotid facial nerve to parotid lesions for preoperative assessment and pre-surgical planning 4. Potential future applications for additional head and neck imaging: trigeminal nerve, perineural spread

http://abstract.rsna.org/uploads/2014/14004692/14004692_34ft.pdf

Fujita, A, Fujii, H, Buch, K, Yang, A, Kimura, Y, Sakai, O, Sugimoto, H, Imaging of Salivary Gland with Novel MR Sequence: Does Double Echo Steady State with Water Excitation (DESSWE) Sequence Improve Diagnostic Interpretations?.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004692.html