Table 3

Distribution of magnetic resonance imaging findings in individual joints and bones of the hand

Synovitis

Joint effusion


Definitive

Severe

Definitive

Severe


Joint

Radiocarpal

19

3

8

-

Radioulnar

23

-

-

-

Ulnocarpal

48

6

-

-

Intercarpal

52

3

47

-

Carpometacarpal joint 1

6

-

3

-

Metacarpophalangeal joint 1

13

-

11

-

Metacarpophalangeal joint 2

6

-

3

-

Metacarpophalangeal joint 3

23

-

-

-

Metacarpophalangeal joint 4

16

-

5

-

Metacarpophalangeal joint 5

16

-

5

-


Bone marrow edema

Erosion


Definitive

Severe

Definitive

Severe


Bone

Ulna/radius

-

-

3

-

Scaphoid

3

-

13

-

Lunate

18

11

45

3

Triquetral

8

-

50

-

Pisiform

-

-

-

-

Trapezium

5

3

13

-

Trapezoid

-

-

5

-

Capitate

3

-

24

-

Hamate

-

-

3

-

Metacarpal base 1 to 5

2

1

2

-

Metacarpal head 1 to 5

1

-

8

-

Phalangeal base 1 to 5

-

-

2

-


For each magnetic resonance imaging feature, frequencies of definite and severe manifestation are indicated as a percentage. -, not present. Joint effusion, bone marrow edema and erosions could be determined in 38 hands from our 26 patients. Synovitis could only be assessed in 31 hands, due to lack of venous access for the application of contrast agent.

Akbayrak et al. Arthritis Research & Therapy 2013 15:R2   doi:10.1186/ar4128

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