کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3381201 | 1220240 | 2006 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: MR measurement of articular cartilage thickness distribution in the hip MR measurement of articular cartilage thickness distribution in the hip](/preview/png/3381201.png)
SummaryObjectiveTo develop a method to determine the distribution of articular cartilage in the hip and to evaluate the potential of the method in a study of normal weight-bearing effects in asymptomatic young volunteers.DesignSix volunteers were scanned after periods of standing and lying supine, using 3D gradient-echo magnetic resonance imaging (MRI). The protocol was repeated for two successive weeks to determine reproducibility. The femoral and acetabular cartilage layers were segmented as a single unit and thickness distribution maps were calculated using a spherical bone model as a frame of reference. Thickness maps were combined over the population using the bone model and post-weight-bearing and post-resting maps were compared.ResultsMean thickness values were compared using an analysis of variance and a significant increase in cartilage thickness of 0.05 mm (P = 0.02) was observed. The reproducibility of the method, assessed using test–retest coefficient of variation was 2.5%.ConclusionsThe technique is reproducible, sensitive to sub-millimetre changes in thickness and may be useful in monitoring changes due to disease progression in patients with arthritis of the hip.
Journal: Osteoarthritis and Cartilage - Volume 14, Issue 10, October 2006, Pages 967–973