Comparison of anterior chamber depth measurements by 3-dimensional optical coherence tomography, partial coherence interferometry biometry, Scheimpflug rotating camera imaging, and ultrasound biomicroscopy.
J Cataract Refract Surg
; 38(7): 1207-13, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-22613688
ABSTRACT
PURPOSE:
To evaluate the congruity of anterior chamber depth (ACD) measurements using 4 devices.SETTING:
Saneikai Tsukazaki Hospital, Himeji City, Japan.DESIGN:
Comparative case series.METHODS:
In 1 eye of 42 healthy participants, the ACD was measured by 3-dimensional corneal and anterior segment optical coherence tomography (CAS-OCT), partial coherence interferometry (PCI), Scheimpflug imaging, and ultrasound biomicroscopy (UBM). The differences between the measurements were evaluated by 2-way analysis of variance and post hoc analysis. Agreement between the measurements was evaluated using Bland-Altman analysis. To evaluate the true ACD using PCI, the automatically calculated ACD minus the central corneal thickness measured by CAS-OCT was defined as PCI true. Two ACD measurements were also taken with CAS-OCT.RESULTS:
The mean ACD was 3.72 mm ± 0.23 (SD) (PCI), 3.18 ± 0.23 mm (PCI true), 3.24 ± 0.25 mm (Scheimpflug), 3.03 ± 0.25 mm (UBM), 3.14 ± 0.24 mm (CAS-OCT auto), and 3.12 ± 0.24 mm (CAS-OCT manual). A significant difference was observed between PCI biometry, Scheimpflug imaging, and UBM measurements and the other methods. Post hoc analysis showed no significant differences between PCI true and CAS-OCT auto or between CAS-OCT auto and CAS-OCT manual. Strong correlations were observed between all measurements; however, Bland-Altman analysis showed good agreement only between PCI true and Scheimpflug imaging and between CAS-OCT auto and CAS OCT manual.CONCLUSION:
The ACD measurements obtained from PCI biometry, Scheimpflug imaging, CAS-OCT, and UBM were significantly different and not interchangeable except for PCI true and CAS-OCT auto and CAS-OCT auto and CAS-OCT manual. FINANCIAL DISCLOSURE No author has a financial or proprietary interest in any material or method mentioned.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Técnicas de Diagnóstico Oftalmológico
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Câmara Anterior
Limite:
Adult
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article