Comparison of unenhanced and enhanced imaging protocols for angle measurements with anterior segment optical toherence tomography

Sunil Deokule, Luciana Alencar, Gianmarco Vizzeri, Felipe Medeiros, Robert N. Weinreb

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

■ BACKGROUND AND OBJECTIVE: To compare the intraobserver and interobserver agreement of anterior chamber angle measurements using unenhanced and enhanced imaging protocols for anterior segment optical coherence tomography (AS-OCT). ■ PATIENTS AND METHODS: Anterior segments of 30 eyes of 15 healthy subjects (mean age: 33.8 ± 13.0 years, 8 women) were imaged by a single examiner with AS-OCT using unenhanced and enhanced imaging protocol. Two masked observers analyzed each image independently on two separate occasions. The reproducibility of angle parameters was estimated by calculating coefficients of variation separately for each observer. Bland-Altman plots were constructed to assess the intraobserver and interobserver agreement. ■ RESULTS: The intraobserver and interobserver reproducibility was similar between imaging protocols. Intra-observer and interobserver agreements were also similar for all parameters evaluated. The best estimate of scleral spur location was determined in all images by both observers. ■ CONCLUSION: Measurement variability was similar with the unenhanced and enhanced imaging protocol in this series of eyes with open angles.

Original languageEnglish (US)
Pages (from-to)39-44
Number of pages6
JournalOphthalmic Surgery Lasers and Imaging
Volume43
Issue number1
DOIs
StatePublished - Jan 2012

Fingerprint

Optical Tomography
Optical Coherence Tomography
Anterior Eye Segment
Anterior Chamber
Healthy Volunteers

ASJC Scopus subject areas

  • Ophthalmology
  • Surgery

Cite this

Comparison of unenhanced and enhanced imaging protocols for angle measurements with anterior segment optical toherence tomography. / Deokule, Sunil; Alencar, Luciana; Vizzeri, Gianmarco; Medeiros, Felipe; Weinreb, Robert N.

In: Ophthalmic Surgery Lasers and Imaging, Vol. 43, No. 1, 01.2012, p. 39-44.

Research output: Contribution to journalArticle

@article{3b5719d598e644c09c3e573562c0a6ce,
title = "Comparison of unenhanced and enhanced imaging protocols for angle measurements with anterior segment optical toherence tomography",
abstract = "■ BACKGROUND AND OBJECTIVE: To compare the intraobserver and interobserver agreement of anterior chamber angle measurements using unenhanced and enhanced imaging protocols for anterior segment optical coherence tomography (AS-OCT). ■ PATIENTS AND METHODS: Anterior segments of 30 eyes of 15 healthy subjects (mean age: 33.8 ± 13.0 years, 8 women) were imaged by a single examiner with AS-OCT using unenhanced and enhanced imaging protocol. Two masked observers analyzed each image independently on two separate occasions. The reproducibility of angle parameters was estimated by calculating coefficients of variation separately for each observer. Bland-Altman plots were constructed to assess the intraobserver and interobserver agreement. ■ RESULTS: The intraobserver and interobserver reproducibility was similar between imaging protocols. Intra-observer and interobserver agreements were also similar for all parameters evaluated. The best estimate of scleral spur location was determined in all images by both observers. ■ CONCLUSION: Measurement variability was similar with the unenhanced and enhanced imaging protocol in this series of eyes with open angles.",
author = "Sunil Deokule and Luciana Alencar and Gianmarco Vizzeri and Felipe Medeiros and Weinreb, {Robert N.}",
year = "2012",
month = "1",
doi = "10.3928/15428877-20111027-01",
language = "English (US)",
volume = "43",
pages = "39--44",
journal = "Ophthalmic Surgery Lasers and Imaging Retina",
issn = "2325-8160",
publisher = "Slack Incorporated",
number = "1",

}

TY - JOUR

T1 - Comparison of unenhanced and enhanced imaging protocols for angle measurements with anterior segment optical toherence tomography

AU - Deokule, Sunil

AU - Alencar, Luciana

AU - Vizzeri, Gianmarco

AU - Medeiros, Felipe

AU - Weinreb, Robert N.

PY - 2012/1

Y1 - 2012/1

N2 - ■ BACKGROUND AND OBJECTIVE: To compare the intraobserver and interobserver agreement of anterior chamber angle measurements using unenhanced and enhanced imaging protocols for anterior segment optical coherence tomography (AS-OCT). ■ PATIENTS AND METHODS: Anterior segments of 30 eyes of 15 healthy subjects (mean age: 33.8 ± 13.0 years, 8 women) were imaged by a single examiner with AS-OCT using unenhanced and enhanced imaging protocol. Two masked observers analyzed each image independently on two separate occasions. The reproducibility of angle parameters was estimated by calculating coefficients of variation separately for each observer. Bland-Altman plots were constructed to assess the intraobserver and interobserver agreement. ■ RESULTS: The intraobserver and interobserver reproducibility was similar between imaging protocols. Intra-observer and interobserver agreements were also similar for all parameters evaluated. The best estimate of scleral spur location was determined in all images by both observers. ■ CONCLUSION: Measurement variability was similar with the unenhanced and enhanced imaging protocol in this series of eyes with open angles.

AB - ■ BACKGROUND AND OBJECTIVE: To compare the intraobserver and interobserver agreement of anterior chamber angle measurements using unenhanced and enhanced imaging protocols for anterior segment optical coherence tomography (AS-OCT). ■ PATIENTS AND METHODS: Anterior segments of 30 eyes of 15 healthy subjects (mean age: 33.8 ± 13.0 years, 8 women) were imaged by a single examiner with AS-OCT using unenhanced and enhanced imaging protocol. Two masked observers analyzed each image independently on two separate occasions. The reproducibility of angle parameters was estimated by calculating coefficients of variation separately for each observer. Bland-Altman plots were constructed to assess the intraobserver and interobserver agreement. ■ RESULTS: The intraobserver and interobserver reproducibility was similar between imaging protocols. Intra-observer and interobserver agreements were also similar for all parameters evaluated. The best estimate of scleral spur location was determined in all images by both observers. ■ CONCLUSION: Measurement variability was similar with the unenhanced and enhanced imaging protocol in this series of eyes with open angles.

UR - http://www.scopus.com/inward/record.url?scp=84856113745&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84856113745&partnerID=8YFLogxK

U2 - 10.3928/15428877-20111027-01

DO - 10.3928/15428877-20111027-01

M3 - Article

VL - 43

SP - 39

EP - 44

JO - Ophthalmic Surgery Lasers and Imaging Retina

JF - Ophthalmic Surgery Lasers and Imaging Retina

SN - 2325-8160

IS - 1

ER -