Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater Reliability
Purpose. To describe a method of quantifying the size of the retinal hemorrhages in branch retinal vein occlusion (BRVO) and to determine the interrater and intrarater reliabilities of these measurements. Methods. Thirty-five fundus photographs from 35 consecutive eyes with BRVO were studied. The fu...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2016/1960190 |
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| author | Yuko Takashima Masahiko Sugimoto Kumiko Kato Maki Kozawa Kengo Ikesugi Hisashi Matsubara Mineo Kondo |
| author_facet | Yuko Takashima Masahiko Sugimoto Kumiko Kato Maki Kozawa Kengo Ikesugi Hisashi Matsubara Mineo Kondo |
| author_sort | Yuko Takashima |
| collection | DOAJ |
| description | Purpose. To describe a method of quantifying the size of the retinal hemorrhages in branch retinal vein occlusion (BRVO) and to determine the interrater and intrarater reliabilities of these measurements. Methods. Thirty-five fundus photographs from 35 consecutive eyes with BRVO were studied. The fundus images were analyzed with Power-Point® software, and a grid of 14 squares was laid over the fundus image. Raters were asked to judge the percentage of each of the 14 squares that was covered by the hemorrhages, and the average of the 14 squares was taken to be the relative size of the retinal hemorrhage. Results. Interrater reliability between three raters was higher when a grid with 14 squares was used (intraclass correlation coefficient (ICC), 0.96) than that when a box with no grid was used (ICC, 0.78). Intrarater reliability, which was calculated by the retinal hemorrhage area measured on two different days, was also higher (ICC, 0.97) than that with no grid (ICC, 0.86). Interrater reliability for five fundus pictures with poor image quality was also good when a grid with 14 squares was used (ICC, 0.88). Conclusions. Although our method is subjective, excellent interrater and intrarater reliabilities indicate that this method can be adapted for clinical use. |
| format | Article |
| id | doaj-art-1ae28948191f4cb2bd86f25afc0198cd |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-1ae28948191f4cb2bd86f25afc0198cd2025-02-03T01:29:56ZengWileyJournal of Ophthalmology2090-004X2090-00582016-01-01201610.1155/2016/19601901960190Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater ReliabilityYuko Takashima0Masahiko Sugimoto1Kumiko Kato2Maki Kozawa3Kengo Ikesugi4Hisashi Matsubara5Mineo Kondo6Department of Ophthalmology, Mie University Graduate School of Medicine, Tsu, JapanDepartment of Ophthalmology, Mie University Graduate School of Medicine, Tsu, JapanDepartment of Ophthalmology, Mie University Graduate School of Medicine, Tsu, JapanDepartment of Ophthalmology, Mie University Graduate School of Medicine, Tsu, JapanDepartment of Ophthalmology, Mie University Graduate School of Medicine, Tsu, JapanDepartment of Ophthalmology, Mie University Graduate School of Medicine, Tsu, JapanDepartment of Ophthalmology, Mie University Graduate School of Medicine, Tsu, JapanPurpose. To describe a method of quantifying the size of the retinal hemorrhages in branch retinal vein occlusion (BRVO) and to determine the interrater and intrarater reliabilities of these measurements. Methods. Thirty-five fundus photographs from 35 consecutive eyes with BRVO were studied. The fundus images were analyzed with Power-Point® software, and a grid of 14 squares was laid over the fundus image. Raters were asked to judge the percentage of each of the 14 squares that was covered by the hemorrhages, and the average of the 14 squares was taken to be the relative size of the retinal hemorrhage. Results. Interrater reliability between three raters was higher when a grid with 14 squares was used (intraclass correlation coefficient (ICC), 0.96) than that when a box with no grid was used (ICC, 0.78). Intrarater reliability, which was calculated by the retinal hemorrhage area measured on two different days, was also higher (ICC, 0.97) than that with no grid (ICC, 0.86). Interrater reliability for five fundus pictures with poor image quality was also good when a grid with 14 squares was used (ICC, 0.88). Conclusions. Although our method is subjective, excellent interrater and intrarater reliabilities indicate that this method can be adapted for clinical use.http://dx.doi.org/10.1155/2016/1960190 |
| spellingShingle | Yuko Takashima Masahiko Sugimoto Kumiko Kato Maki Kozawa Kengo Ikesugi Hisashi Matsubara Mineo Kondo Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater Reliability Journal of Ophthalmology |
| title | Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater Reliability |
| title_full | Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater Reliability |
| title_fullStr | Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater Reliability |
| title_full_unstemmed | Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater Reliability |
| title_short | Method of Quantifying Size of Retinal Hemorrhages in Eyes with Branch Retinal Vein Occlusion Using 14-Square Grid: Interrater and Intrarater Reliability |
| title_sort | method of quantifying size of retinal hemorrhages in eyes with branch retinal vein occlusion using 14 square grid interrater and intrarater reliability |
| url | http://dx.doi.org/10.1155/2016/1960190 |
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