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Ophthalmic Surg Lasers Imaging. 2008 May-Jun;39(3):203-8.

Dye dependent differences in arteriovenous passage times: a comparison of indocyanine green and fluorescein sodium dye analysis.

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  • 1Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA.

Abstract

BACKGROUND AND OBJECTIVE:

To evaluate the difference in arteriovenous passage time calculated from retinal angiograms using indocyanine green and fluorescein sodium dye in healthy individuals.

PATIENTS AND METHODS:

Examinations of eight healthy individuals (mean age +/- standard deviation: 27.3 +/- 4.2 years) who had four consecutive ophthalmic visits that were 2 weeks apart were analyzed. Indocyanine green and fluorescein angiography were performed sequentially (with the indocyanine green angiography occurring first) using scanning laser ophthalmoscopy. Arteriovenous passage times were calculated offline using digital angiogram video analysis.

RESULTS:

Mean arteriovenous passage times calculated from indocyanine green angiography (1.417 +/- 0.136 seconds) recordings were significantly shorter than fluorescein sodium times (2.539 +/- 0.421 seconds) (P < .0001) and intra-group variability was similar. There were no significant correlations between indocyanine green and fluorescein sodium arteriovenous passage times.

CONCLUSION:

Arteriovenous passage times calculated using indocyanine green and fluorescein angiography are not interchangeable.

PMID:
18556940
[PubMed - indexed for MEDLINE]
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