A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous Anastomosis
Background: The aim of this study was to compare the choroidal characteristics of typical polypoidal choroidal vasculopathy (T-PCV) and polypoidal choroidal neovascularization (P-CNV) cases, and to investigate the presence of intervortex venous anastomoses in these PCV subtypes by using en face opti...
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MDPI AG
2022-12-01
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| Series: | Diagnostics |
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| Online Access: | https://www.mdpi.com/2075-4418/13/1/138 |
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| author | Figen Batıoğlu Özge Yanık Ferhad Özer Sibel Demirel Emin Özmert |
| author_facet | Figen Batıoğlu Özge Yanık Ferhad Özer Sibel Demirel Emin Özmert |
| author_sort | Figen Batıoğlu |
| collection | DOAJ |
| description | Background: The aim of this study was to compare the choroidal characteristics of typical polypoidal choroidal vasculopathy (T-PCV) and polypoidal choroidal neovascularization (P-CNV) cases, and to investigate the presence of intervortex venous anastomoses in these PCV subtypes by using en face optical coherence tomography angiography (OCTA). Methods: A total of 35 eyes of 33 PCV cases were included. The PCV cases were divided into T-PCV and P-CNV groups. The choroidal vascularity index (CVI) was calculated. En face OCTA images were evaluated for the presence of intervortex venous anastomoses. The diameter of the largest anastomotic Haller vessel was measured. Results: T-PCV cases had significantly higher mean CVI values (73.9 ± 3.7 vs. 70.8 ± 4.5%) than P-CNV cases (<i>p</i> = 0.039). Intervortex venous anastomoses were observed in 85.7% of T-PCV eyes and in 91.7% of P-CNV eyes on en face OCTA (<i>p</i> = 1.000). In the cases with intervortex venous anastomosis, the mean diameter of the largest anastomotic vessel on en face OCTA was 341.2 ± 109.1 µm in the T-PCV and 280.4 ± 68.4 µm in the P-CNV group (<i>p</i> = 0.048). Conclusions: The higher CVI value in T-PCV may be an important feature concerning the pathogenesis and classification of PCV. Although there was no difference between the two subtypes in terms of intervortex anastomosis, more dilated anastomotic vessels were observed in the T-PCV. |
| first_indexed | 2024-03-11T10:05:05Z |
| format | Article |
| id | doaj.art-9022c29805e3450092d5f1d9ca106cb1 |
| institution | Directory Open Access Journal |
| issn | 2075-4418 |
| language | English |
| last_indexed | 2024-03-11T10:05:05Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diagnostics |
| spelling | doaj.art-9022c29805e3450092d5f1d9ca106cb12023-11-16T15:09:21ZengMDPI AGDiagnostics2075-44182022-12-0113113810.3390/diagnostics13010138A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous AnastomosisFigen Batıoğlu0Özge Yanık1Ferhad Özer2Sibel Demirel3Emin Özmert4Department of Ophthalmology, Ankara University School of Medicine, 06620 Ankara, TurkeyDepartment of Ophthalmology, Ankara University School of Medicine, 06620 Ankara, TurkeyDepartment of Ophthalmology, Ankara University School of Medicine, 06620 Ankara, TurkeyDepartment of Ophthalmology, Ankara University School of Medicine, 06620 Ankara, TurkeyDepartment of Ophthalmology, Ankara University School of Medicine, 06620 Ankara, TurkeyBackground: The aim of this study was to compare the choroidal characteristics of typical polypoidal choroidal vasculopathy (T-PCV) and polypoidal choroidal neovascularization (P-CNV) cases, and to investigate the presence of intervortex venous anastomoses in these PCV subtypes by using en face optical coherence tomography angiography (OCTA). Methods: A total of 35 eyes of 33 PCV cases were included. The PCV cases were divided into T-PCV and P-CNV groups. The choroidal vascularity index (CVI) was calculated. En face OCTA images were evaluated for the presence of intervortex venous anastomoses. The diameter of the largest anastomotic Haller vessel was measured. Results: T-PCV cases had significantly higher mean CVI values (73.9 ± 3.7 vs. 70.8 ± 4.5%) than P-CNV cases (<i>p</i> = 0.039). Intervortex venous anastomoses were observed in 85.7% of T-PCV eyes and in 91.7% of P-CNV eyes on en face OCTA (<i>p</i> = 1.000). In the cases with intervortex venous anastomosis, the mean diameter of the largest anastomotic vessel on en face OCTA was 341.2 ± 109.1 µm in the T-PCV and 280.4 ± 68.4 µm in the P-CNV group (<i>p</i> = 0.048). Conclusions: The higher CVI value in T-PCV may be an important feature concerning the pathogenesis and classification of PCV. Although there was no difference between the two subtypes in terms of intervortex anastomosis, more dilated anastomotic vessels were observed in the T-PCV.https://www.mdpi.com/2075-4418/13/1/138choroidal vascularity indexindocyanine green angiographyoptical coherence tomography angiographypolypoidal choroidal neovascularizationtypical polypoidal choroidal vasculopathyvortex vein anastomoses |
| spellingShingle | Figen Batıoğlu Özge Yanık Ferhad Özer Sibel Demirel Emin Özmert A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous Anastomosis Diagnostics choroidal vascularity index indocyanine green angiography optical coherence tomography angiography polypoidal choroidal neovascularization typical polypoidal choroidal vasculopathy vortex vein anastomoses |
| title | A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous Anastomosis |
| title_full | A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous Anastomosis |
| title_fullStr | A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous Anastomosis |
| title_full_unstemmed | A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous Anastomosis |
| title_short | A Comparative Study of Choroidal Vascular and Structural Characteristics of Typical Polypoidal Choroidal Vasculopathy and Polypoidal Choroidal Neovascularization: OCTA-Based Evaluation of Intervortex Venous Anastomosis |
| title_sort | comparative study of choroidal vascular and structural characteristics of typical polypoidal choroidal vasculopathy and polypoidal choroidal neovascularization octa based evaluation of intervortex venous anastomosis |
| topic | choroidal vascularity index indocyanine green angiography optical coherence tomography angiography polypoidal choroidal neovascularization typical polypoidal choroidal vasculopathy vortex vein anastomoses |
| url | https://www.mdpi.com/2075-4418/13/1/138 |
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