Shivani Ahlawat MD, Presenter: Nothing to Disclose

Alan Belzberg, Abstract Co-Author: Nothing to Disclose

Laura Marie Fayad MD, Abstract Co-Author: Nothing to Disclose

1. Using high resolution MR imaging, normal peripheral nerve anatomy has a distinct appearance. 2. Commonly used classification schemes for peripheral nerve injury are the Seddon and Sunderland schemes, which are based on either axonal continuity and conduction or histology. 3. There are specific direct and indirect MR imaging features that can be used to identify peripheral nerve injury in children and young adults.  

1. Review the normal anatomy and histology of a normal peripheral nerve 2. Compare and contrast the typically used classification schemes in peripheral nerve injury a. Seddon classification – based on conduction block, axonal continuity and nerve trunk continuity b. Sunderland classification – based on histological assessment of peripheral nerve injury 3. MRI Technique a. 2-D techniques b. 3-Dimensional c. Administration of contrast material in assessment of peripheral nerve injury 4. MR appearance of a normal peripheral nerve 5. Illustrate the spectrum of direct and indirect signs of peripheral nerve injury in children and young adults    a. Direct signs  i. Size and morphology ii. Signal intensity iii. Epineural fibrosis iv. Architectural distortion v. Discontinuity b. Indirect signs  i. Skeletal muscle denervation  6. Provide a diagnostic algorithm  

http://abstract.rsna.org/uploads/2014/14004922/14004922_rfrx.pdf

Ahlawat, S, Belzberg, A, Fayad, L, High Resolution MR Imaging of Peripheral Nerve Injury in Children and Young Adults  .  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004922.html