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Study | Type of study | Diagnostic test | OCTA | Type of OCTA | Scanning range | Segmentation | Country | Inclusion criteria | Exclusion criteria | Age | Male (%) | PCV (ICGA) (n) | Treated PCV (%) |
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Huang et al. [29] | Retrospective | Y | Optovue AngioVue | SD | 3 × 3 | Manual | Taiwan, China | The diagnosis of PCV by ICGA and received OCTA simultaneously | Polyps beyond a 3 × 3 mm area from the central macula, other causes of fundus neovascularization | 67.5 ± 7.3 | 68.00 | 50 | 42.0 |
Cheung et al. [1] | Prospective | Y | OCT (Spectralis; Heidelberg), OCTA only (Topcon DRI OCT Triton), OCT + OCTA | SS | 6 × 6 | Manual | Singapore | 53 consecutive patients who presented with treatment-naive exudative AMD | Choroidal neovascularization secondary to causes other than AMD | 69.5 ± 8.14 | 65.20 | 23 | 0.0 |
de Carlo et al. [11] | Retrospective | Y | Carl Zeiss Meditec Angioplex | SD | NA | Manual | Hawaii | Eyes with AMD (both PCV and non-PCV subtypes) with structural en face OCT or OCTA imaging | Eyes with concomitant retinal diseases, previous focal laser, major trauma, or intraocular surgery, AMD lesions outside of the imaging area | NA | 87.50 | 41 | NA |
Peiretti et al. [12] | Retrospective | N | Optovue AngioVue | SD | 3 × 3 | Manual | Italy | PCV secondary to CSC based on clinical and multimodal imaging (FP, FFA, ICGA) | Relevant opacities of the optic media, low-quality images obtained with OCTA, previous treatments, presence of other concomitant ocular diseases, poor-quality images | 67.35 ± 11.96 | 55.00 | 20 | 0.0 |
Chan et al. [13] | Prospective | N | Optovue AngioVue | SD | 3 × 3/6 × 6 | Auto | China | Confirmation of the diagnosis of PCV | Detectable BVNs without any polypoidal lesion detected on the ICGA, images of OCTA with a strength signal index lower than 50 | 61.1 ± 7.6 | 61.29 | 32 | 0.0 |
Mao et al. [14] | Retrospective | N | Optovue AngioVue | SD | 3 × 3/6 × 6 | Manual | China | Elevated orange-red lesions on fundus examination, and/or polypoidal lesions on ICGA | Poor-quality OCT images due to cataract or poor fixation, choroidal neovascularization secondary to causes other than AMD | NA | NA | 14 | NA |
Lin and Shi [30] | Retrospective | N | Optovue AngioVue | SD | NA | NA | China | Orange-red lesions on fundus examination, and/or polypoidal lesions on ICGA | Relevant opacities of the optic media, low-quality images obtained with OCTA, a history of trauma, previous treatments, presence of other concomitant ocular diseases | NA | NA | 48 | NA |
Rebhun et al. [15] | Prospective | N | Prototype SS-OCT + OCTA VISTA | SS | 3 × 3/6 × 6 | Manual | New England | Confirmed diagnosis of PCV by ICGA | NA | 71 ± 10 | 28.57 | 7 | 14.3 |
Takayama et al. [27] | Prospective | N | Optovue AngioVue | SD | 3 × 3 | Auto | Japan | Early subretinal ICGA hyperfluorescence | Eyes with >25 and <22 mm axial length, polyp outside of the scanning area, any other retinal pathology, previously been treated, unclear images | 73.8 ± 9.8 | 71.43 | 21 | 0.0 |
Huang et al. [17] | Retrospective | N | Optovue AngioVue | SD | NA | Manual | Taiwan, China | Presence of polyps with or without BVNs on ICGA | History of treatment including PDT or intravitreal injections of anti-VEGF therapy | NA | NA | 31 | 0.0 |
Chi et al. [18] | Prospective | N | Optovue AngioVue | SD | 3 × 3 | Manual | Taiwan, China | Polyp-like choroidal vessel dilatation with a BVN on ICGA | Affected by any other macular disorders, and a history of other macular abnormalities related to diabetic retinopathy, retinal vein occlusion, uveitis, etc. | 68.9 ± 8.0 | NA | 47 | 48.9 |
de Carlo et al. [19] | Retrospective | N | Carl Zeiss Meditec Angioplex | SD | NA | Manual | Asian, Filpino, Caucasian | Diagnosed with PCV using ICGA | Eyes with other concomitant retinal diseases including diabetic retinopathy, artery and vein occlusion, and macular telangiectasia | 77 (53–92) | 51.06 | 47 | 85.1 |
Xu and Lin [20] | Retrospective | N | Angio-retina | SD | 6 × 6 | Manual | China | Elevated orange-red lesions on fundus examination, and/or polypoidal lesions on ICGA | Combined with pathologic myopia, or a history of surgery or trauma | 66.03 ± 8.14 | 70.00 | 20 | NA |
Tanaka et al. [16] | Retrospective | N | Optovue AngioVue | SD | 3 × 3/6 × 6 | Manual | Japan | Presence of polypoidal lesions on ICGA, categorized into polypoidal CNV (type 1 PCV) or typical PCV (type 2 PCV) | NA | NA | 75.00 | 32 | 0.0 |
Cheung et al. [21] | Prospective | Y | Topcon DRI OCT Triton | SS | 3 × 3 | Manual | Singapore | Diagnosis of PCV based on clinical examination and underwent FFA and ICGA | NA | 68.89 ± 9.41 | 63.00 | 54 | 68.5 |
Tomiyasu et al. [22] | Retrospective | N | Optovue AngioVue | SD | 6 × 6 | Manual | Japan | Diagnosis of treatment-naive PCV, based on ophthalmoscopic examinations, ICGA, and OCT | Poor-quality OCT images due to cataract or poor fixation | 71.85 ± 9.53 | 90.00 | 20 | 0.0 |
Wang et al. [23] | Retrospective | N | Optovue AngioVue | SD | 3 × 3 | Manual | China | Diagnosis of PCV by FP, FFA, ICGA, SD-OCT | A large area of hemorrhage or cloudy media that could significantly reduce the intensity of the OCTA signal | 59.3 ± 5.43 | 84.62 | 13 | 15.4 |
Kim et al. [24] | Retrospective | N | Optovue AngioVue | SD | 3 × 3/6 × 6 | Manual | Korea | Hyperfluorescent polyps detected by ICGA | Cases accompanied by severe subretinal hemorrhage and scarring show inaccurate segmentations | 67.86 ± 14.02 | 71.43 | 7 | 71.4 |
Srour et al. [25] | Prospective | N | Optovue AngioVue | SD | 3 × 3 | Auto | France | Diagnosis of PCV based on FP, FFA, ICGA, SD-OCT | Affected with any other macular disorders such as high myopia (>8 diopters), presence of angioid streaks, or intraocular inflammation | 72.6 ± 10.5 | 33.33 | 12 | 83.3 |
Inoue et al. [26] | Retrospective | N | Optovue AngioVue/Heidelberg Spectralis OCTA | SD | 3 × 3 | Manual | US | Demonstrated polypoidal changes to neovascular tissue on ICGA and SD-OCT | NA | 71.1 ± 10.9 | 14.29 | 7 | 85.7 |
Ma et al. [28] | Retrospective | N | Optovue AngioVue | SD | 6 × 6 | Auto | China | Elevated orange-red lesions on fundus examination/polypoidal lesions on ICGA | Combined with pathologic myopia, idiopathic choroidal neovascularization, history of surgery or trauma, low vision that cannot complete OCTA exam | 68.24 ± 6.80 | 52.94 | 17 | 0.0 |
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