Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics
Purpose: The aim of the study was to describe imaging characteristics and detection rates of phenotypic features in macular telangiectasia type-2 (MacTel) on multicolor (MC), blue reflectance (BR), green reflectance (GR), infrared reflectance (IR), and fundus autofluorescence (FAF) and to evaluate s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2024-01-01
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| Series: | Indian Journal of Ophthalmology |
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| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2024;volume=72;issue=13;spage=125;epage=134;aulast=Chandran |
| _version_ | 1797245486872133632 |
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| author | Kiran Chandran Anantharaman Giridhar Sachin Desai Mahesh Gopalakrishnan V P Indu Sobha Sivaprasad |
| author_facet | Kiran Chandran Anantharaman Giridhar Sachin Desai Mahesh Gopalakrishnan V P Indu Sobha Sivaprasad |
| author_sort | Kiran Chandran |
| collection | DOAJ |
| description | Purpose: The aim of the study was to describe imaging characteristics and detection rates of phenotypic features in macular telangiectasia type-2 (MacTel) on multicolor (MC), blue reflectance (BR), green reflectance (GR), infrared reflectance (IR), and fundus autofluorescence (FAF) and to evaluate sensitivity, specificity, and predictive values across modalities. Methods: In this monocentric observational study, 282 eyes of 148 patients with MacTel underwent color fundus photograph, MC, BR, GR, IR, FAF, spectral-domain optical coherence tomography (SD-OCT), OCT-angiography (OCT-A), and fundus fluorescein angiography (FFA). Grading was done by two graders qualitatively and quantitatively for the presence of the following prespecified MacTel findings [crystals, right-angle vessels (RAVs), plaques, subretinal neovascularization (SRNV), and MacTel area]. Across each imaging modality, the detection rate of RAVs and SRNV was compared with reference standard OCT-A (RAVs and SRNV) and FFA (SRNV), whereas that of plaques was compared with reference standard SD-OCT. Results: MC identified overall MacTel characteristics in 92.7% of eyes. Regarding the presence, number, and quadrants of RAVs and the presence and number of crystals, MC and GR had superior detection rates as well as the highest sensitivity and negative predictive value. Retinal plaques were better detected using FAF (97%), followed by MC (88%). In proliferative MacTel, SRNV was identified in 86% and 79% of eyes on MC and IR, respectively. While BR clearly delineated MacTel area in 100% eyes, FAF was able to ascertain a larger area of involvement in proliferative MacTel. Conclusion: The findings demonstrate the ability of MC, its component channels, and FAF to describe MacTel characteristics qualitatively and quantitatively. |
| first_indexed | 2024-04-24T19:27:41Z |
| format | Article |
| id | doaj.art-734fd897750949deaee097aaaa5ae9b1 |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-04-24T19:27:41Z |
| publishDate | 2024-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-734fd897750949deaee097aaaa5ae9b12024-03-25T14:38:33ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892024-01-01721312513410.4103/IJO.IJO_78_23Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristicsKiran ChandranAnantharaman GiridharSachin DesaiMahesh GopalakrishnanV P InduSobha SivaprasadPurpose: The aim of the study was to describe imaging characteristics and detection rates of phenotypic features in macular telangiectasia type-2 (MacTel) on multicolor (MC), blue reflectance (BR), green reflectance (GR), infrared reflectance (IR), and fundus autofluorescence (FAF) and to evaluate sensitivity, specificity, and predictive values across modalities. Methods: In this monocentric observational study, 282 eyes of 148 patients with MacTel underwent color fundus photograph, MC, BR, GR, IR, FAF, spectral-domain optical coherence tomography (SD-OCT), OCT-angiography (OCT-A), and fundus fluorescein angiography (FFA). Grading was done by two graders qualitatively and quantitatively for the presence of the following prespecified MacTel findings [crystals, right-angle vessels (RAVs), plaques, subretinal neovascularization (SRNV), and MacTel area]. Across each imaging modality, the detection rate of RAVs and SRNV was compared with reference standard OCT-A (RAVs and SRNV) and FFA (SRNV), whereas that of plaques was compared with reference standard SD-OCT. Results: MC identified overall MacTel characteristics in 92.7% of eyes. Regarding the presence, number, and quadrants of RAVs and the presence and number of crystals, MC and GR had superior detection rates as well as the highest sensitivity and negative predictive value. Retinal plaques were better detected using FAF (97%), followed by MC (88%). In proliferative MacTel, SRNV was identified in 86% and 79% of eyes on MC and IR, respectively. While BR clearly delineated MacTel area in 100% eyes, FAF was able to ascertain a larger area of involvement in proliferative MacTel. Conclusion: The findings demonstrate the ability of MC, its component channels, and FAF to describe MacTel characteristics qualitatively and quantitatively.http://www.ijo.in/article.asp?issn=0301-4738;year=2024;volume=72;issue=13;spage=125;epage=134;aulast=Chandranblue reflectancefundus autofluorescencemactel areamacular telangiectasia type-2 (mactel)multicolorsensitivity |
| spellingShingle | Kiran Chandran Anantharaman Giridhar Sachin Desai Mahesh Gopalakrishnan V P Indu Sobha Sivaprasad Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics Indian Journal of Ophthalmology blue reflectance fundus autofluorescence mactel area macular telangiectasia type-2 (mactel) multicolor sensitivity |
| title | Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics |
| title_full | Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics |
| title_fullStr | Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics |
| title_full_unstemmed | Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics |
| title_short | Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics |
| title_sort | relevance of multicolor imaging its component channels and fundus autofluorescence in describing macular telangiectasia type 2 mactel lesion characteristics |
| topic | blue reflectance fundus autofluorescence mactel area macular telangiectasia type-2 (mactel) multicolor sensitivity |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2024;volume=72;issue=13;spage=125;epage=134;aulast=Chandran |
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