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Br J Ophthalmol 84:1027-1030 doi:10.1136/bjo.84.9.1027
  • Original Article
    • Clinical science

Colour Doppler imaging of the orbital vasculature in Graves' disease with computed tomographic correlation

Table 2

Statistical comparison of orbital blood flow parameters in normal control subjects and in patients with Graves' disease

Compared groups
Control−A Control−B A−B
Ophthalmic artery
 Peak systolic velocity NS p=0.01 p<0.001
 End diastolic velocity NS p=0.013 p<0.001
 Resistivity index NS NS NS
Central retinal artery
 Peak systolic velocity  NS p=0.003 p=0.017
 End diastolic velocity NS NS NS
 Resistivity index NS NS NS
Central retinal vein
 Maximal velocity NS p=0.001 p=0.01
 Minimal velocity NS p=0.009 p=0.012
Superior ophthalmic vein
 Maximal velocity NS p=0.033 p=0.007
 Minimal velocity NS p=0.037 p=0.028

  • p Values for multiple comparison based on the Tukey honestly significant difference test.

  • NS = not statistically significant.

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