Neurographics Case Conversations: Complex Chiari Malformation: What the Neurosurgeon Needs to Know
Description & Learning Objectives
Article Description: Chiari malformation type 1 is a frequently encountered but incompletely understood morphologic variant that may present with headache and lower cranial nerve symptoms. The main surgical treatment for Chiari malformation type 1 is suboccipital decompression. Further research has identified a subset of patients with Chiari malformation type 1 with radiographic findings that predispose to suboptimal outcomes from suboccipital decompression alone. This disease process has come to be referred to as complex Chiari malformation. Here, we discuss imaging findings of complex Chiari malformation, identify craniovertebral metrics used to stratify patients, and propose a reporting structure to assist our neurosurgical colleagues in the selection of appropriate treatment.
Upon completion of this activity, participants will gain strategies to:
-Understand the relationship between Chiari malformation and other abnormalities of the skull base such as basilar invagination and platybasia.
-List the critical skull base measurements that can be used to classify abnormalities near the foramen magnum.
Upon completion of this activity, participants will gain strategies to:
-Understand the relationship between Chiari malformation and other abnormalities of the skull base such as basilar invagination and platybasia.
-List the critical skull base measurements that can be used to classify abnormalities near the foramen magnum.
Instructions for Participation
To complete this activity, learners will watch a recording of a live webinar and submit a course evaluation. Once all elements are completed, a certificate will be automatically added to your transcript.
Credit Dates
Available: 2/9/2023
Expires: 2/8/2026
Expires: 2/8/2026
Planners & Faculty
Joshua Nickerson, MD, FACR, Planner/Moderator
Marios Papachristou, MD, Speaker
Vikas Agarwal, MD, Speaker
Barton (Char) Branstetter, MD, Speaker
Marios Papachristou, MD, Speaker
Vikas Agarwal, MD, Speaker
Barton (Char) Branstetter, MD, Speaker
Accreditation Statement
The American Society of Neuroradiology is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.
The American Society of Neuroradiology designates this enduring material for a maximum of 1 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
The American Society of Neuroradiology designates this enduring material for a maximum of 1 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
Disclosure
In compliance with ACCME requirements and guidelines, ASNR has developed a policy for disclosure and review of potential conflicts of interest and a method for resolution if a conflict does exist. ASNR maintains a tradition of scientific integrity and objectivity in its educational activities. In order to preserve these values and ensure its educational activities are independent and free of commercial bias, all individuals, including planners, presenters, moderators and evaluators, participating in an ASNR educational activity, or an activity jointly provided by ASNR must disclose all relevant financial relationships with ineligible companies, as defined by the ACCME. Unless listed below, all planners and individuals in control of content have nothing to disclose.
All individuals in a position to control content have no disclosures.
All individuals in a position to control content have no disclosures.
