Multi-center MRI volume and linearity behavior

M. Barbu-McInnis; L. Molinelli; E. Durkin; J. Tamez-Peña; S. Totterman

doi:10.1117/12.709512

8 March 2007 Multi-center MRI volume and linearity behavior

M. Barbu-McInnis, L. Molinelli, E. Durkin, J. Tamez-Peña, S. Totterman

Proceedings Volume 6515, Medical Imaging 2007: Image Perception, Observer Performance, and Technology Assessment; 65151Q (2007) https://doi.org/10.1117/12.709512
Event: Medical Imaging, 2007, San Diego, CA, United States

Abstract

Accurate longitudinal measurements are essential in understanding treatment effectiveness. Miss-calibrated gradients, low acquisition bandwidth, or abnormally high B0 inhomogeneities may cause geometric distortions in the MRI, which in turn may affect the imaging based biomarkers used to understand disease progression. This work presents the behavior of several MRI sites over an average period of 12 months using the analysis of a volume and linearity phantom with known geometry. The phantom was scanned in the axial, coronal, and sagittal planes using a T2 FSE sequence. For each month's scan, the average phantom length was measured in the right/left, anterior/posterior, and superior/inferior directions. The distortion variation was measured in each gradient axis and orientation over time. Results show that some magnets exhibit a significant drift within the scanning period. Unless this type of distortion is considered, the treatment efficacy outcome may be annulled due to misleading and erroneous conclusions.

Citation Download Citation

M. Barbu-McInnis, L. Molinelli, E. Durkin, J. Tamez-Peña, and S. Totterman "Multi-center MRI volume and linearity behavior", Proc. SPIE 6515, Medical Imaging 2007: Image Perception, Observer Performance, and Technology Assessment, 65151Q (8 March 2007); https://doi.org/10.1117/12.709512

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Magnetic resonance imaging

Magnetism

Scanners

Manufacturing

3D metrology

Calibration

Image quality

Show All Keywords

Keywords/Phrases

Search In:

Publication Years