Inter-device reproducibility of retrobulbar blood flow velocity measurements in healthy subjects using color Doppler imaging

Verticchio Vercellin Alice C, Carlo A. Cutolo, Carolina Dellafiore, Massimiliano Lava, Carmine Tinelli, Annalisa De Silvestri, Fabrizio Calliada, Giovanni Milano

Research output: Contribution to journalArticle

Abstract

Purpose: To evaluate the inter-device reproducibility of retrobulbar blood flow measurements obtained by two commercially available CDI (color Doppler imaging) devices. Methods: The right eyes of 10 healthy volunteers were investigated. Four examiners, namely two ophthalmologists and two radiologists, performed CDI examination of the ophthalmic artery, central retinal artery and temporal short posterior ciliary arteries using both CDI devices: ESAOTE MYLAB™ and SIEMENS ANTARES STELLAR PLUS™. The peak systolic velocity (PSV), the end-diastolic velocity (EDV) and the resulting resistivity index (RI) were averaged for 3 cardiac cycles. To evaluate the reproducibility between both device measurements, the Lin’s concordance correlation coefficient (CCC) was used. CCC can be expressed as the product of Pearson’s r (the measure of precision) and C_b (the measure of accuracy). Results: Results show that the inter-device reproducibility for CDI measurements is not acceptable since a poor degree of overall concordance (0.15 0.71) but overall precision low (0.18<Pearson’s r

Original languageEnglish
Pages (from-to)125-130
Number of pages6
JournalJournal of Ultrasound
Volume19
Issue number2
DOIs
Publication statusPublished - Jun 1 2016

Keywords

  • Blood flow velocity
  • Doppler ultrasound imaging
  • Glaucoma
  • Healthy volunteers
  • Reproducibility of results

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Internal Medicine

Fingerprint Dive into the research topics of 'Inter-device reproducibility of retrobulbar blood flow velocity measurements in healthy subjects using color Doppler imaging'. Together they form a unique fingerprint.

  • Cite this