Main Logo
Logo

Society for Pediatric Radiology – Poster Archive

  267
  0
  0
 
 


Final ID: Poster #: EDU-070

A Vision Beyond the Globe - Perioptic Spaces Evaluation - Normal Appearance And Pathologies

Purpose or Case Report: Objective:
The optic nerves are covered by the meningeal sheath and the nerve is surrounded by the fluid which communicates with the CSF space intracranially. Any variations in the CSF pressure can alter the perioptic space fluid and cause pressure effects on the optic nerve head. The optic disc does not possess cells of muller which hold nerve fibers together unlike other retinal cells, and hence swells up easily with increasing CSF pressure resulting in papilledema. Conversely, a decrease in intracranial pressure can cause perioptic space to collapse. Our aim in this exhibit is to present the normal appearance of the perioptic space on MRI, normal optic nerve sheath diameter, our institutional MRI protocol for optic nerve/ perioptic space evaluation, pathologies that cause changes in the perioptic space, and how perioptic space variations can be a clue to look for pathologies.
Learning points:
Our exhibit includes:
Our institutional protocol for evaluation of the perioptic space and the optic nerve
Normal appearance of perioptic space on different MRI sequences including high resolution T2W coronal, T2W axial and BFFE sequences
Interesting case reports with altered perioptic space fluid including
1. Idiopatic intracranial hypertension
2. Shunt malfunction
3. Shunt over drainage
4. An interesting case of pseudotumor progressing to intracranial hypotension
5. Foster Kennedy syndrome
6. Intracranial hypotension
7. Differentiation of papilledema versus drusen
The importance of looking at perioptic space and how it gives clue to the underlying pathology
Associated findings to be evaluated on MRI
Discussion:
Perioptic spaces can give a clue to underlying intracranial pathologies. It is imperative for the radiologists to carefully evaluate the perioptic spaces and to look for additional findings if there is a variation. If there is dilatation of the perioptic space, it is important to look at the additional features including tortuosity of the optic nerves, protrusion of the optic disc, partial empty sella, enlarged meckel’s cave and bilateral transverse sinuses for stenosis. When there is collapse of the peri-optic space, other associated findings should be looked at including pachymeningeal enhancement, venous distention sign, cerebral edema, tonsillar ectopia, and other quantitative features like mamillopontine distance. Also, it is important to evaluate for tumors which can also result either in perioptic space distention or collapse.
Methods & Materials:
Results:
Conclusions:
  • Jaganathan, Sriram  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
  • Krishnan, Venkatram  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
  • Jayappa, Sateesh  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
  • Murphy, Janice  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
  • Phillips, Paul  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
  • Ramakrishnaiah, Raghu  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
  • Charles, Glasier  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
  • Choudhary, Arabinda  ( University of Arkansas for Medical Sciences , Little Rock , Arkansas , United States )
Session Info:

Posters - Educational

Neuroradiology

SPR Posters - Educational

More abstracts on this topic:
Cardiac Devices: Then and Now

Dennison Chelsea, Taylor Susan, Wilson Hunter, Slesnick Timothy, Riedesel Erica

How to Approach Unilateral Hyperlucent Hemithorax in Children?

Shah Jignesh, Chauhan Ankita, Sandhu Preet

More abstracts from these authors:
Revisiting MRI Signs for Shunt Malfunction as We Adopt Rapid Sequence Limited MRI to Avoid Radiation Dose and to Image Gently

Radder Shrinivas, Razzaq Sania, Charles Glasier, Choudhary Arabinda, Jayappa Sateesh, Murphy Janice, Ramakrishnaiah Raghu

Clinico-Radiological Features of Caudal Regression Syndrome: The Long and the Short of It!

Krishnan Venkatram, Jaganathan Sriram, Murphy Janice, Choudhary Arabinda, Jayappa Sateesh, Rowell Amy, Charles Glasier, Ramakrishnaiah Raghu

Preview
Poster____EDU-070.pdf
You have to be authorized to contact abstract author. Please, Login or Signup.

Please note that this is a separate login, not connected with your credentials used for the SPR main website.

Not Available

Comments

We encourage you to join the discussion by posting your comments and questions below.

Presenters will be notified of your post so that they can respond as appropriate.

This discussion platform is provided to foster engagement, and stimulate conversation and knowledge sharing.

Please click here to review the full terms and conditions for engaging in the discussion, including refraining from product promotion and non-constructive feedback.

 

You have to be authorized to post a comment. Please, Login or Signup.

Please note that this is a separate login, not connected with your credentials used for the SPR main website.


   Rate this abstract  (Maximum characters: 500)