Cargando…
The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI)
BACKGROUND: To determine the inter-visit variability of retinal blood flow velocities (BFVs) using a retinal function imager (RFI) in healthy young subjects. METHODS: Twenty eyes of 20 healthy young subjects were enrolled. RFI imaging was performed to obtain the BFVs in retinal arterioles and venule...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6280444/ https://www.ncbi.nlm.nih.gov/pubmed/30534577 http://dx.doi.org/10.1186/s40662-018-0124-z |
_version_ | 1783378674194579456 |
---|---|
author | Deng, Yuqing Li, Meng Wang, Gengyuan Jiang, Hong Wang, Jianhua Zhong, Jing Li, Saiqun Yuan, Jin |
author_facet | Deng, Yuqing Li, Meng Wang, Gengyuan Jiang, Hong Wang, Jianhua Zhong, Jing Li, Saiqun Yuan, Jin |
author_sort | Deng, Yuqing |
collection | PubMed |
description | BACKGROUND: To determine the inter-visit variability of retinal blood flow velocities (BFVs) using a retinal function imager (RFI) in healthy young subjects. METHODS: Twenty eyes of 20 healthy young subjects were enrolled. RFI imaging was performed to obtain the BFVs in retinal arterioles and venules in a field measuring 7.3 × 7.3 mm(2) (setting: 35 degrees) centered on the fovea, and repeated measurements were obtained on two separate days. The inter-visit variability of BFVs was assessed by the concordance correlation coefficient (CCC) and coefficient of variance (CV). RESULTS: At the first visit, the mean BFV was 3.6 ± 0.8 mm/s and 3.0 ± 0.7 mm/s in arterioles and venules, respectively, which were not significantly different from those at the second visit (the BFV of arterioles was 3.5 ± 0.8 mm/s, and the BFV of venules was 3.0 ± 0.7 mm/s, P > 0.05, respectively). The CCC was 0.72 in the BFVs of arterioles and 0.67 in venules, and the CV was 10.8% in the BFVs of arterioles and 11.0% in venules. CONCLUSION: The inter-visit variability using the retinal function imager (RFI) with a large field of view appeared to be good and comparable to previously reported intra-visit and inter-eye variability. |
format | Online Article Text |
id | pubmed-6280444 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-62804442018-12-10 The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI) Deng, Yuqing Li, Meng Wang, Gengyuan Jiang, Hong Wang, Jianhua Zhong, Jing Li, Saiqun Yuan, Jin Eye Vis (Lond) Research BACKGROUND: To determine the inter-visit variability of retinal blood flow velocities (BFVs) using a retinal function imager (RFI) in healthy young subjects. METHODS: Twenty eyes of 20 healthy young subjects were enrolled. RFI imaging was performed to obtain the BFVs in retinal arterioles and venules in a field measuring 7.3 × 7.3 mm(2) (setting: 35 degrees) centered on the fovea, and repeated measurements were obtained on two separate days. The inter-visit variability of BFVs was assessed by the concordance correlation coefficient (CCC) and coefficient of variance (CV). RESULTS: At the first visit, the mean BFV was 3.6 ± 0.8 mm/s and 3.0 ± 0.7 mm/s in arterioles and venules, respectively, which were not significantly different from those at the second visit (the BFV of arterioles was 3.5 ± 0.8 mm/s, and the BFV of venules was 3.0 ± 0.7 mm/s, P > 0.05, respectively). The CCC was 0.72 in the BFVs of arterioles and 0.67 in venules, and the CV was 10.8% in the BFVs of arterioles and 11.0% in venules. CONCLUSION: The inter-visit variability using the retinal function imager (RFI) with a large field of view appeared to be good and comparable to previously reported intra-visit and inter-eye variability. BioMed Central 2018-12-04 /pmc/articles/PMC6280444/ /pubmed/30534577 http://dx.doi.org/10.1186/s40662-018-0124-z Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Deng, Yuqing Li, Meng Wang, Gengyuan Jiang, Hong Wang, Jianhua Zhong, Jing Li, Saiqun Yuan, Jin The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI) |
title | The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI) |
title_full | The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI) |
title_fullStr | The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI) |
title_full_unstemmed | The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI) |
title_short | The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI) |
title_sort | inter-visit variability of retinal blood flow velocity measurements using retinal function imager (rfi) |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6280444/ https://www.ncbi.nlm.nih.gov/pubmed/30534577 http://dx.doi.org/10.1186/s40662-018-0124-z |
work_keys_str_mv | AT dengyuqing theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT limeng theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT wanggengyuan theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT jianghong theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT wangjianhua theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT zhongjing theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT lisaiqun theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT yuanjin theintervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT dengyuqing intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT limeng intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT wanggengyuan intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT jianghong intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT wangjianhua intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT zhongjing intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT lisaiqun intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi AT yuanjin intervisitvariabilityofretinalbloodflowvelocitymeasurementsusingretinalfunctionimagerrfi |