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Table 2 Summary of ICC velocity values for repeatability and reproducibility assessments in healthy volunteers and patients

From: Reproducibility of Transcranial Doppler ultrasound in the middle cerebral artery

Healthy Volunteers

Repeatability (Exam 1 vs Exam 2)

ICC

95% CI

 Peak

0.880

0.726–0.950

 Mean

0.867

0.700–0.945

 End-diastolic

0.887

0.741–0.953

Reproducibility (Visit 1 vs Visit 2)

ICC

95% CI

 Peak

0.777

0.526–0.905

 Mean

0.795

0.558–0.913

 End-diastolic

0.674

0.349–0.856

Patients

Repeatability (Exam 1 vs Exam 2)

ICC

95% CI

 Peak

0.926

0.826–0.970

 Mean

0.922

0.817–0.968

 End-diastolic

0.868

0.701–0.945

Reproducibility (Visit 1 vs Visit 2)

ICC

95% CI

 Peak

0.800

0.567–0.915

 Mean

0.786

0.542–0.909

 End-diastolic

0.778

0.527–0.905

  1. Date are reported as mean with 95% limits of agreement for assessments