Can I read New techniques for cartilage magnetic resonance imaging relaxation time analysis: Texture analysis of flattened cartilage and localized intra‐ and inter‐subject comparisons on EtoBox?

New techniques for cartilage magnetic resonance imaging relaxation time analysis: Texture analysis of flattened cartilage and localized intra‐ and inter‐subject comparisons by Julio Carballido‐Gamio; Thomas M. Link; Sharmila Majumdar is a Medicine article available to read on EtoBox.

What is New techniques for cartilage magnetic resonance imaging relaxation time analysis: Texture analysis of flattened cartilage and localized intra‐ and inter‐subject comparisons about?

## Abstract MR relaxation time measurements of knee cartilage have shown potential to characterize knee osteoarthritis (OA). In this work, techniques that allow localized intra‐ and inter‐subject comparisons of cartilage relaxation times, as well as cartilage flattening for texture analysis parallel and perpendicular to the natural cartilage layers, are presented. The localized comparisons are based on the registration of bone structures and the assignment of relaxation time feature vectors to each point in the bone–cartilage interface. Cartilage flattening was accomplished with Bezier splines and warping, and texture analysis was performed with second‐order texture measures using gray‐level co‐occurrence matrices (GLCM). In a cohort of five normal subjects the performance and reproducibility of the techniques were evaluated using __T__~1ρ~ maps of femoral knee cartilage. The feasibility of creating a mean cartilage relaxation time map is also presented. Successful localized intra‐ and inter‐subject __T__~1ρ~ comparisons were obtained with reproducibility similar to that reported in the literature for regional __T__~2~. Improvement of the reproducibility of GLCM features was obtain

Who reads New techniques for cartilage magnetic resonance imaging relaxation time analysis: Texture analysis of flattened cartilage and localized intra‐ and inter‐subject comparisons?

Author

Julio Carballido‐Gamio; Thomas M. Link; Sharmila Majumdar

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0740-3194)

Published

2008

Language

EN

Field

Medicine (Health Sciences)