| Agreement among three examiners of colour Doppler imaging retrobulbar blood flow velocity measurements. | |
| | |
MedLine Citation:
|
PMID: 21933359 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Purpose: To assess the agreement among three masked examiners on central retinal artery (CRA) and ophthalmic artery (OA) blood flow velocity measurements performed with colour Doppler imaging (CDI) in healthy volunteers. Methods: The study included 30 eyes of 15 healthy volunteers. Prior to the study, all examiners underwent intensive CDI training by an expert to facilitate uniformity in performing measurements according to a specific protocol. Following the eligibility visit, three masked examiners performed CDI measurements assessing the CRA and OA in both eyes of all subjects. All CDI images were analysed by a masked grader. Intraclass correlation coefficients (ICC) were calculated for peak systolic velocity (PSV) and end diastolic velocity (EDV) in the CRA and OA among the examiners. p-values < 0.05 were considered statistically significant. Results: The study included seven men and eight women (mean age 30.9 ± 4.5 years). In right eyes, ICCs for PSV and EDV in the CRA ranged from 0.917 to 0.961 and from 0.937 to 0.980, respectively. ICCs for PSV and EDV in the OA ranged from 0.802 to 0.926 and from 0.611 to 0.891, respectively. In left eyes, all ICCs for PSV and EDV were >0.9, both in the CRA and the OA. All p-values calculated for ICCs were statistically significant. Conclusion: Expert training and execution of a specific protocol for CDI of ocular blood flow velocity measurements provide highly reproducible results in healthy volunteers. This is important for long-term studies assessing ocular hemodynamics, where multiple examiners may be involved. |
| | |
Authors:
|
Panayiota Founti; Alon Harris; Domniki Papadopoulou; Petros Emmanouilidis; Brent Siesky; Vassilis Kilintzis; Eleftherios Anastasopoulos; Angeliki Salonikiou; Theofanis Pappas; Fotis Topouzis |
Related Documents
:
|
17036929 - Abo and rh d polymorphism among tibetans in india. 17694249 - Abo blood group. related investigations and their association with defined pathologies. 21629069 - A postoperative analysis of perfusion dynamics in deep inferior epigastric perforator f... 11874009 - Microleakage and penetration depth of three types of materials in fissure sealant: self... 2262199 - Modern european cranial variables and blood polymorphisms show comparable spatial patte... 20644109 - Rh genotyping in a sickle cell disease patient contributing to hematopoietic stem cell ... 6588469 - Intraoperative measurements of gastric blood flow in man: effects on blood flow of acid... 19526469 - Histogram-based filtering for quantitative 3d retinal angiography. 12405759 - Determination of naringin in rat blood, brain, liver, and bile using microdialysis and ... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-9-20 |
Journal Detail:
|
Title: Acta ophthalmologica Volume: - ISSN: 1755-3768 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
|
Created Date: 2011-9-21 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101468102 Medline TA: Acta Ophthalmol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
© 2011 The Authors. Acta Ophthalmologica © 2011 Acta Ophthalmologica Scandinavica Foundation. |
Affiliation:
|
Department of Ophthalmology, School of Medicine, Aristotle University of Thessaloniki, AHEPA Hospital, Thessaloniki, Greece Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Impact of organ culturing on metabolic profile of human corneas: preliminary results.
Next Document: Molecular Study of Free-ranging Mule Deer and White-tailed Deer from British Columbia, Canada, for E...