Table 5.

Comparison of the presence of the 3 characteristics of 99mTc-HDP blood flow scintigraphy in the chilled and ambient hands of patients with Raynaud’s phenomenon (RP) and controls. Values are expressed as number of patients or controls (%).

CharacteristicHandRP (n = 57), n (%)Controls (n = 60), n (%)p
Initial spike curveChilled hand*Present4 (7)42 (70)< 0.0001
Absent53 (93)18 (30)
Ambient handPresent14 (24.6)45 (75)< 0.0001
Absent43 (75.4)15 (25)
Slow progression patternChilled hand*Present44 (77.2)1 (1.7)< 0.0001
Absent13 (22.8)59 (98.3)
Ambient hand*Present14 (24.6)0 (0)< 0.0001
Absent43 (75.4)60 (100)
Inhomogeneous radioactivity uptakeChilled hand*Present16 (28.1)0 (0)< 0.0001
Absent41 (78.9)60 (100)
Ambient hand*Present6 (10.5)0 (0)0.012
Absent51 (89.5)60 (100)
  • * Significant using Fisher’s exact test.

  • Significant using the chi-square test.