Intra- and interobserver reliability of lens equatorial length measurement using 35-MHz ultrasound biomicroscopy in dogs with cataract
| Autor: | Frédéric Goulle, Nathaniel Harran, Charlotte Barbé |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
Interobserver reliability 040301 veterinary sciences medicine.medical_treatment Ultrasound biomicroscopy Microscopy Acoustic Intraocular lens Cataract law.invention 0403 veterinary science 03 medical and health sciences Length measurement 0302 clinical medicine Dogs law Lens Crystalline medicine Animals Dog Diseases Observer Variation Reproducibility General Veterinary business.industry Reproducibility of Results 04 agricultural and veterinary sciences Repeatability Phacoemulsification Surgery Lens (optics) 030221 ophthalmology & optometry Nuclear medicine business |
| Zdroj: | Veterinary ophthalmology. 20(4) |
| ISSN: | 1463-5224 |
| Popis: | Purpose To determine intra- and interobserver reliability of lens equatorial length measurement using 35-MHz ultrasound biomicroscopy in dogs with cataract. Methods Ocular ultrasonography was performed on 28 dogs (50 eyes) before phacoemulsification. Lens equatorial length was measured on still images obtained at 35 MHz in all dogs. Each observer (A and B) obtained the measurements independently. Coefficients of variation (CVs) were used to assess intraobserver repeatability and interobserver reproducibility. Intraobserver repeatability was assessed by comparing measurements obtained on the same image on four different occasions by observer A. Interobserver reproducibility was assessed by comparing measurements obtained independently by both observers on the same image. Results CV used to assess intraobserver repeatability was 2.4% with good agreement and no significant difference between repetitions (P > 0.05). CV used to assess interobserver reproducibility was 5.8% without significant difference between measurements obtained by the two observers (P > 0.05). Conclusions Intraobserver repeatability and interobserver reproducibility were considered good for lens equatorial length measurement at 35 MHz in dogs with cataract. Ultrasound biomicroscopy could be an acceptable method to assess lens equatorial dimension before phacoemulsification and intraocular lens implantation in dogs with cataract. |
| Databáze: | OpenAIRE |
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