Interactive knee cartilage extraction using efficient segmentation software: Data from the osteoarthritis initiative

2014 ◽  
Vol 24 (6) ◽  
pp. 3145-3157 ◽  
Author(s):  
Hong-Seng Gan ◽  
Tian-Swee Tan ◽  
Liang-Xuan Wong ◽  
Weng-Kit Tham ◽  
Khairil Amir Sayuti ◽  
...  
Keyword(s):  
Knee Cartilage ◽  
Osteoarthritis Initiative

Hand Joint Space Narrowing and Osteophytes Are Associated with Magnetic Resonance Imaging-defined Knee Cartilage Thickness and Radiographic Knee Osteoarthritis: Data from the Osteoarthritis Initiative

2011 ◽  
Vol 39 (1) ◽  
pp. 161-166 ◽  
Author(s):  
IDA K. HAUGEN ◽  
SEBASTIAN COTOFANA ◽  
MARTIN ENGLUND ◽  
TORE K. KVIEN ◽  
DONATUS DREHER ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Joint Space Narrowing ◽  
Joint Space ◽  
Cartilage Thickness ◽  
Resonance Imaging ◽  
Knee Cartilage ◽  
Knee Oa ◽  
Osteoarthritis Initiative ◽  
Hand Radiographs

Objective.To evaluate whether features of radiographic hand osteoarthritis (OA) are associated with quantitative magnetic resonance imaging (MRI)-defined knee cartilage thickness, radiographic knee OA, and 1-year structural progression.Methods.A total of 765 participants in Osteoarthritis Initiative (OAI; 455 women, mean age 62.5 yrs, SD 9.4) obtained hand radiographs (at baseline), knee radiographs (baseline and Year 1), and knee MRI (baseline and Year 1). Hand radiographs were scored for presence of osteophytes and joint space narrowing (JSN). Knee radiographs were scored according to the Kellgren-Lawrence (KL) scale. Cartilage thickness in the medial and lateral femorotibial compartments was measured quantitatively from coronal FLASHwe images. We examined the cross-sectional and longitudinal associations between features of hand OA (total osteophyte and JSN scores) and knee cartilage thickness, 1-year knee cartilage thinning (above smallest detectable change), presence of knee OA (KL grade ≥ 3), and progression of knee OA (KL change ≥ 1) by linear and logistic regression. Both hand OA features were included in a multivariate model (if p ≤ 0.25) adjusted for age, sex, and body mass index (BMI).Results.Hand JSN was associated with reduced knee cartilage thickness (ß = −0.02, 95% CI −0.03, −0.01) in the medial femorotibial compartment, while hand osteophytes were associated with the presence of radiographic knee OA (OR 1.10, 95% CI 1.03–1.18; multivariate models) with both hand OA features as independent variables adjusted for age, sex, and BMI). Radiographic features of hand OA were not associated with 1-year cartilage thinning or radiographic knee OA progression.Conclusion.Our results support a systemic OA susceptibility and possibly different mechanisms for osteophyte formation and cartilage thinning.

scholarly journals Longitudinal analysis of MRI T 2 knee cartilage laminar organization in a subset of patients from the osteoarthritis initiative: A texture approach

2010 ◽  
Vol 65 (4) ◽  
pp. 1184-1194 ◽  
Author(s):  
Julio Carballido-Gamio ◽  
Gabby B. Joseph ◽  
John A. Lynch ◽  
Thomas M. Link ◽  
Sharmila Majumdar
Keyword(s):  
Longitudinal Analysis ◽  
Knee Cartilage ◽  
Laminar Organization ◽  
Osteoarthritis Initiative

Multilabel graph based approach for knee cartilage segmentation: Data from the osteoarthritis initiative

2014 ◽  
Author(s):  
Hong-Seng Gan ◽  
Tian-Swee Tan ◽  
Khairil Amir Sayuti ◽  
Ahmad Helmy Abdul Karim ◽  
Mohammed Rafiq Abdul Kadir
Keyword(s):  
Knee Cartilage ◽  
Osteoarthritis Initiative
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