High-resolution interleaved water-fat MR imaging of finger joints with chemical-shift elimination
Article first published online: 22 DEC 2010
Copyright © 2010 Wiley-Liss, Inc.
Journal of Magnetic Resonance Imaging
Volume 33, Issue 1, pages 245–251, January 2011
How to Cite
Kwok, W. E., You, Z., Seo, G., Lerner, A., Totterman, S., Ritchlin, C. and Monu, J. (2011), High-resolution interleaved water-fat MR imaging of finger joints with chemical-shift elimination. J. Magn. Reson. Imaging, 33: 245–251. doi: 10.1002/jmri.22427
- Issue published online: 22 DEC 2010
- Article first published online: 22 DEC 2010
- Manuscript Accepted: 15 OCT 2010
- Manuscript Received: 21 MAY 2010
- NIH/NIAMS. Grant Number: 5R03AR048949
- high-resolution MRI;
- water-fat imaging;
- chemical-shift artifacts;
- musculoskeletal MRI;
- finger joints;
To study the use of an interleaved water-fat (IWF) sequence with a custom-made radiofrequency (RF) coil for high-resolution imaging of arthritic finger joints.
Materials and Methods
High-resolution finger magnetic resonance imaging (MRI) was performed using a custom-made dedicated RF receiver coil and an IWF sequence. A phantom, a cadaver finger specimen, and the fingers of two normal controls and six arthritic subjects were imaged with a resolution of 156 × 156 × 600 μm. The appearance of anatomic structures on the IWF images were compared with images acquired with a regular sequence. The images were reviewed by two musculoskeletal radiologists for the depiction of anatomical structures and for the presence of abnormalities.
The high-resolution images revealed detailed structures of the finger joints not detectable using typical clinical resolution. The IWF sequence gave more realistic depiction of subchondral bone thickness, and avoided false bone erosions displayed in the regular sequence. It also allowed better visualization of ligaments and tendons.
This pilot study shows the feasibility and the potential usefulness of high-resolution IWF imaging for finger joint evaluation. This technique may be useful for the diagnosis and treatment assessment of arthritis, and for the study of joint disease pathogenesis. J. Magn. Reson. Imaging 2011;33:245–251. © 2010 Wiley-Liss, Inc.