Ultrasound and MRI measurements of joint cartilage:a validation study

Aktivitet: Tale eller præsentation - typerForedrag og mundtlige bidrag

Se relationer på Aarhus Universitet

Anne Helene Spannow - Foredragsholder

  • Børneafdeling, SKS
Ultrasound (US) is a promising imaging tool in paediatric rheumatology. Loss of joint cartilage is among one of the parameters judging the severity of disease progress. However US still needs validation before using it as a diagnostic bedside tool in a pediatric setting.
This study aims to validate US measurements of cartilage thickness in JIA target joint by comparing it with MRI (gold standard).
Materials & Methods
The study included 26 healthy children (17 boys/9 girls) mean years 11.4.  The right knee, ankle, wrist, 2 nd  MCP and 2 nd  PIP joints were examined with MRI and US on the same day. MRI was performed on a 1.5 T MR system (Sigma Twin Speed; G.E. Systems) using a dedicated coil. Fat suppressed T1-weighted three dimensional (3D) spoiled gradient echo sequences were used. US standard scans (EULAR) were performed with B-mode using a linear transducer (10 MHZ) (Hitachi EUB-6500 CFM). Prior to the study, the investigators reached consensus on the anatomical landmarks for measurement of cartilage thickness in the 5 joints.  

Table 1.

In conclusion we found good agreement (SD/95% CI and CV) between the two methods in assessment of cartilage thickness in JIA target joints in healthy children. US is just as good an imaging modality as MRI when consedering  measurements of CTh and can be used in a pediatric setting with regard of monitoring JIA disease progres.





Emneord: ultrasonography - MRI - cartilage - joint - children -pediatric rheumatology
5 sep. 2007

Begivenhed (Konference)

Titel<strong>Ultrasound and MRI Measurements Of Joint Cartilage: A validation study</strong>
EmneUltrasonography in JIA

ID: 10518732