Table 5 |
||||||
|
Sensitivity and specificity of US, x-ray, and clinical examination, with MRI as the standard reference method |
||||||
|
US sensitivity |
US specificity |
X-ray sensitivity |
X-ray specificity |
Clinical examination sensitivity |
Clinical examination specificity |
|
|
|
||||||
|
Bone erosions |
||||||
|
MCP joint |
0.56 |
0.93 |
0.38 |
0.99 |
NA |
NA |
|
PIP joint |
0.57 |
0.88 |
0.40 |
0.95 |
NA |
NA |
|
DIP joint |
0.00 |
0.99 |
0.67 |
0.97 |
NA |
NA |
|
Bone proliferations |
||||||
|
MCP joint |
0.00 |
0.97 |
0.00 |
0.96 |
NA |
NA |
|
PIP joint |
0.50 |
0.96 |
0.00 |
0.96 |
NA |
NA |
|
DIP joint |
1.00 |
0.95 |
1.00 |
0.98 |
NA |
NA |
|
Synovitis |
||||||
|
MCP joint |
0.70 |
0.88 |
NA |
NA |
0.31 |
0.74 |
|
PIP joint |
0.50 |
0.88 |
NA |
NA |
0.25 |
0.76 |
|
DIP joint |
0.40 |
0.87 |
NA |
NA |
0.00 |
0.83 |
|
Tenosynovitis |
||||||
|
MCP joint |
0.38 |
0.99 |
NA |
NA |
NA |
NA |
|
PIP joint |
1.00 |
0.86 |
NA |
NA |
NA |
NA |
|
DIP joint |
0.67 |
0.98 |
NA |
NA |
NA |
NA |
|
Insertional changes |
||||||
|
Extensor tendons |
0.50 |
0.96 |
NA |
NA |
NA |
NA |
|
Flexor tendons |
1.00 |
0.95 |
NA |
NA |
NA |
NA |
|
Capsular/extracapsular changes |
1.00 |
0.88 |
NA |
NA |
NA |
NA |
|
|
||||||
|
The imaging modalities were ultrasonography (US), magnetic resonance imaging (MRI), projection radiography (x-ray), and clinical examination. DIP, distal interphalangeal; MCP, metacarpophalangeal; NA, not applicable; PIP, proximal interphalangeal. |
||||||
|
Wiell et al. Arthritis Research & Therapy 2007 9:R119 doi:10.1186/ar2327 |
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