NetForum uses cookies to ensure that we give you the best experience on our website. If you continue to use the site, we'll assume that you are happy to receive these cookies on the NetForum website. Read about our cookies.
NetForum Community
Learn. Share. Optimize.
Log in | Sign up now | Submit content | Contact

Attention valued NetForum members:

Due to evolving technology needs and global privacy regulations, we have made the hard decision to suspend the NetForum User Community platform on Friday, November 29, 2019.

After this date, the current NetForum can no longer be reached. Please click here for more information about this decision, what happens next and how to stay in touch with us about the future of the community.

Go to similar content

3.0T Cranial nerve VIII / IAC - University of Michigan

ExamCard
Dr. Parmar, Hemant, M.D. Ann Arbor, University of Michigan
Prof. Mukherji, Suresh, M.D. Ann Arbor, University of Michigan
Mrs. Dudek, Nancy, R.T. Ann Arbor, University of Michigan

Download
Login is required to download ExamCards.

ExamCard purpose

This Release 2 SmartExam ExamCard focuses on vizualization of the Internal Auditory Canal structure and associated pathologies such as:

 

1.      Sensori neural hearing loss (suspected acoustic neuroma)

2.      Other cerebello pontine angle tumor

3.      Atypical Bell's Palsy

4.      Suspected membranous labyrinth abnormalities

5.      Pre-cochlear implant assessment of the cochlear nerve

6.      Hemi-facial spasms

 

ExamCard overview

IAC Routine
Scan 1SmartSurvey
Scan 2Reference scan
Scan 3T1 SAG IR
Scan 4DWI, ADC map included in automated processing
Scan 5T2 FLAIR AX
Scan 6T2 3D DRIVE AX, increased resolution
Scan 7T2 AX SENSE
Scan 8T1 AX SE
Scan 9T1 AX SE post contrast
Scan 10T1 COR post contrast
Scan 11TI AX whole brain

Notes:

Scan 1 is a 59-second SmartSurvey.

Scan 2 is a standard reference scan.

Scan 3, T1 SAG IR, covers the whole brain.

Scan 4, DWI,  is a standard brain sequence where an ADC map can be created.

Scan 5, T2 FLAIR AX, covers the whole brain.

Scan 6, T2 3D DRIVE AX, has a sub-millimeter slice thickness. Due to the bright CSF in the background the nerves are well visualized. The isotropic voxels are reformatted in sagital and coronal planes.

Scans 7 to 10 have a slice thickness of 2 mm and a slice gap of 0.2 mm with a high in-plane resolution that covers the whole inner ear region.

Scan 11, T1 AX whole brain: spin-echo (SE) sequence with a flip angle of 70 is used to increase the grey/white matter differentiation and reduce the SAR level.

ExamCard images

T2 3D DRIVE SENSE CLEAR T2 3D DRIVE SENSE CLEAR
T2 3D DRIVE SENSE CLEAR
T2 3D DRIVE SENSE CLEAR
T2 3D DRIVE SENSE CLEAR T2 3D DRIVE SENSE CLEAR
T2 3D DRIVE SENSE CLEAR
T2 3D DRIVE SENSE CLEAR
T2w AX SENSE T2w AX SENSE
T2w AX SENSE
T2w AX SENSE
T1w AX SE T1w AX SE
T1w AX SE
T1w AX SE
T1w COR post-contrast
T1w COR post-contrast

Patient preparation

The 8-channel SENSE Head coil was used.

Contrast agent / injection protocol

A standard gadolinium dose of 0.1 mmol/kg was used.

Post-processing / analysis

The 3D DRIVE series is used to create reformats in a coronal view and oblique sagittal views perpendicular to the IACs on both sides. Due to the isotropic voxels of the series the reformats are of good quality, which reduces the number of series that have to be scanned and therefore scan time.



This content has been made possible by NetForum Community.
Share this on: Share your link in twitter Share your link in facebook Share your link on LinkedIn Print Rate this article: Log in to vote

 
Rating:
Votes:
0
Views:
5257
Added:
Apr 17, 2007

Rate this:
Log in to vote
 

ExamCard
Achieva 3.0T
Release 1
IAC, Neuro
 

Clinical News
Best Practices
Case Studies
Publications and Abstracts
White Papers
Web seminars and Presentations
ExamCards
Protocols
Application Tips and FAQ
Training
Try an Application
Business News
Case Studies
White Papers
Web Seminars and Presentations
Utilization Services
Contributing Professionals
Contributing Institutions
Become a Contributor