English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Poster

Improving DESS contrast in 7T hip images using L1-norm denoising and optimal echo combination

MPS-Authors
/persons/resource/persons216029

Heule,  R
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Destruel, A., Li, M., Engstrom, C., Weber, E., Jin, J., Heule, R., et al. (2020). Improving DESS contrast in 7T hip images using L1-norm denoising and optimal echo combination. Poster presented at 2020 ISMRM & SMRT Virtual Conference & Exhibition.


Cite as: http://hdl.handle.net/21.11116/0000-0006-D8E7-2
Abstract
The double-echo steady-state (DESS) sequence has been used successfully in 3T MRI imaging of the musculoskeletal system for segmentation of joint. However, in 3D-DESS images acquired at 7T MRI, a reduction in the contrast between tissues due to an increased diffusion sensitivity may complicate cartilage segmentation. Typically, the signals acquired with DESS are averaged without any pre-processing. However, these signals give different contrasts and have different noise behaviours. In this work, we improve the contrast-to-noise ratio (CNR) whilst preserving anatomical detail in high-resolution 7T DESS images through a new approach combining L1-norm denoising and p-norm combination of the echo signals.