1) Employ new techniques for LS plexus and lower extremity evaluation. 2) Understand the difference between normal and abnormal imaging appearances of LS plexus and lower extremity peripheral nerves. 3) Discuss the differential diagnosis of various LS plexus and lower limb nerve pathologies based on available clinical history and imaging findings. 4) Learn how to incorporate the MRN modality in the diagnostic algorithm of plexopathies and related peripheral neuropathies in a multi-disciplinary fashion.
Lumbosacral plexus has a complex anatomy with a number of nerve convergences and divergences
resulting in formation of multiple essential peripheral nerves that provide motor and sensory function to
the pelvis and lower extremities. Due to the deep location and complexity, MR neurography (MRN) plays a
major role in evaluation of its normalcy and pathologic states.
This talk will discuss current state of the art techniques available for LS plexus evaluation and show normal and abnormal imaging appearances of various common and uncommon pathologic states involving LS plexus and its branch nerves.
The talk will specifically address new 3D techniques that suppress vessel signal effectively while preserving effective nerve visualization. Role of MRN in chronic pelvic pain, nerve injuries and its incremental value over conventional lumbar spine imaging will be discussed. Current role of functional DTI in qualitative and quantitative assessment of nerve pathology and tumors will be highlighted.
Chhabra, A,
MR Neurography of the Lumbar Plexus and Lower Extremities. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/14001179.html
