作者
Shekhar S Chandra, Rachel Surowiec, Charles Ho, Ying Xia, Craig Engstrom, Stuart Crozier, Jurgen Fripp
发表日期
2016/1/1
期刊
Magnetic resonance in medicine
卷号
75
期号
1
页码范围
403-413
简介
Purpose
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.
Methods
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).
Results
The mean voxel overlap between automated A and manual M segmentations of the cartilage volumes in the (clinically based) SPACE images was 73% . The automated and manual analyses …
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