Table 3

Summary of similar studies


Results summary

Ƙstergaard et al. [3] (wrist)

Most radiographic erosions were evident 2 years prior on MRI.

aThe PPV of MRI erosion predicting radiograpic erosion over the course of 5 years was estimated to be 52%.

The relative risk of developing radiographic erosion when MRI erosion is present is 4.1 after 5 years.

Scheel et al. [23] (wrist)

Forty-one percent of MRI erosions were seen on radiographs 7 years later.

aThe estimated PPV of MRI erosion predicting radiographic erosion at 7 years is 50%.

aThe estimated relative risk of MRI erosion for future radiographic erosion at 7 years is 43.

McQueen et al. [24] (wrist)

This is a study of early rheumatoid arthritis with symptoms of 6 months or less.

Statistical results of an MRI erosion in the wrist predicting future radiographic erosion in the wrist at 1 year were sensitivity of 83%, specificity of 70%, PPV of 58%, NPV of 91%, and odds ratio of 11.6.

Twelve new erosions over a 1-year period were seen in the dominant wrist of 42 patients.

All three of these studies featured the wrist. aEstimated from data reported in the article. MRI, magnetic resonance imaging; NPV, negative predictive value; PPV, positive predictive value.

Mundwiler et al. Arthritis Research & Therapy 2009 11:R94   doi:10.1186/ar2737

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