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Automated analysis of hip joint cartilage combining MR T2 and three‐dimensional fast‐spin‐echo images
- Source :
- Magnetic Resonance in Medicine. 75:403-413
- Publication Year :
- 2015
- Publisher :
- Wiley, 2015.
-
Abstract
- To validate a fully automated scheme to extract biochemical information from the hip joint cartilages using MR T2 mapping images incorporating segmentation of co-registered three-dimensional Fast-Spin-Echo (3D-SPACE) images.Manual analyses of unilateral hip (3 Tesla) MR images of 24 asymptomatic volunteers were used to validate a 3D deformable model method for automated cartilage segmentation of SPACE scans, partitioning of the individual femoral and acetabular cartilage plates into clinically defined sub-regions and propagating these results to T2 maps to calculate region-wise T2 value statistics. Analyses were completed on a desktop computer (∼ 10 min per case).The mean voxel overlap between automated A and manual M segmentations of the cartilage volumes in the (clinically based) SPACE images was 73% (100 × 2|A∩M|/[|A|+|M|]). The automated and manual analyses demonstrated a relative difference error10% in the median "T2 average signal" for each cartilage plate. The automated and manual analyses showed consistent patterns between significant differences in T2 data across the hip cartilage sub-regions.The good agreement between the manual and automatic analyses of T2 values indicates the use of structural 3D-SPACE MR images with the proposed method provides a promising approach for automated quantitative T2 assessment of hip joint cartilages.
- Subjects :
- Adult
Cartilage, Articular
Male
Computer science
T2 mapping
Sensitivity and Specificity
Pattern Recognition, Automated
030218 nuclear medicine & medical imaging
Young Adult
03 medical and health sciences
Imaging, Three-Dimensional
0302 clinical medicine
Cut
Image Interpretation, Computer-Assisted
Humans
Radiology, Nuclear Medicine and imaging
Segmentation
Computer vision
Joint (geology)
030203 arthritis & rheumatology
Echo-Planar Imaging
business.industry
Reproducibility of Results
Anatomy
Fast spin echo
Image Enhancement
Fully automated
3d space
Subtraction Technique
Joint cartilage
Female
Hip Joint
Artificial intelligence
business
Algorithms
Subjects
Details
- ISSN :
- 15222594 and 07403194
- Volume :
- 75
- Database :
- OpenAIRE
- Journal :
- Magnetic Resonance in Medicine
- Accession number :
- edsair.doi.dedup.....ebd10b5477036bbaa9f15124cb5e27ce