Retinal Vessel Local Tortuosity under a Macula-to-Optic Disc Central-Framing Change
Abstract
:1. Introduction
2. Materials and Methods
2.1. Local Tortuosity Indices
2.2. Participants and Equipment
2.3. Region of Interest (ROI)
2.4. Vessel Segmentation and Parametrization
2.5. Vessel Curvature
3. Results
4. Discussion and Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Chord length | |
Arc length | |
Total curvature | |
Total squared curvature |
Right Eye | Left Eye | |||
---|---|---|---|---|
Frame Center | Macula | Optic Disc | Macula | Optic Disc |
Subject 1 | MR1 | DR1 | ML1 | DL1 |
Subject 2 | MR2 | DR2 | ML2 | DL2 |
Mean | Standard Deviation | |||
---|---|---|---|---|
Index | M | D | M | D |
DF | 1.1543 | 1.1621 | 0.1101 | 0.1169 |
T1 | 0.1543 | 0.1621 | 0.1101 | 0.1169 |
T2 | 4.935 | 5.063 | 3.307 | 3.427 |
T3 | 0.2085 | 0.2344 | 0.2412 | 0.2756 |
T4 | 0.01709 | 0.01742 | 0.00915 | 0.00927 |
T5 | 0.000694 | 0.000774 | 0.000718 | 0.000811 |
T6 | 0.02046 | 0.02105 | 0.01251 | 0.01292 |
T7 | 0.000860 | 0.000970 | 0.000952 | 0.001087 |
Tortuosity Indices | Mean Difference | Standard Deviation | Limits of Agreement | Limits of Agreement | |
---|---|---|---|---|---|
Lower | Higher | ||||
DF | 0.00768 | 0.016570 | −0.02480 | 0.04016 | 0.006 |
T1 | 0.00768 | 0.016570 | −0.02480 | 0.04016 | 0.006 |
T2 | 0.12910 | 0.384400 | −0.62430 | 0.88252 | 0.040 |
T3 | 0.02591 | 0.058390 | −0.08850 | 0.14035 | 0.008 |
T4 | 0.00033 | 0.001285 | −0.00220 | 0.00285 | 0.112 |
T5 | 0.00008 | 0.000169 | −0.00025 | 0.00041 | 0.005 |
T6 | 0.00060 | 0.001764 | −0.00285 | 0.00405 | 0.038 |
T7 | 0.00011 | 0.000234 | −0.00035 | 0.00057 | 0.005 |
Vessel | Frame Center | D | L | TK | TSK |
---|---|---|---|---|---|
14 | DR2 | 339.86 | 457.30 | 12.57 | 1.007 |
MR2 | 340.51 | 446.45 | 11.81 | 0.752 | |
18 | DR2 | 187.58 | 271.50 | 8.31 | 0.520 |
MR2 | 190.69 | 261.84 | 7.93 | 0.466 | |
23 | DR2 | 308.30 | 377.31 | 7.79 | 0.627 |
MR2 | 318.91 | 383.10 | 6.92 | 0.439 | |
36 | DR2 | 102.46 | 139.02 | 5.09 | 0.356 |
MR2 | 103.79 | 138.37 | 4.75 | 0.280 |
DF | T1 | T2 | T3 | T4 | T5 | T6 | ||
---|---|---|---|---|---|---|---|---|
T1 | 1.000 1.000 | |||||||
T2 | 0.830 0.800 | 0.830 0.800 | ||||||
T3 | 0.827 0.758 | 0.827 0.758 | 0.975 0.924 | |||||
T4 | 0.775 0.758 | 0.775 0.758 | 0.869 0.826 | 0.921 0.817 | ||||
T5 | 0.790 0.760 | 0.790 0.760 | 0.890 0.815 | 0.954 0.919 | 0.983 0.932 | |||
T6 | 0.814 0.834 | 0.814 0.834 | 0.890 0.846 | 0.938 0.843 | 0.995 0.990 | 0.985 0.943 | ||
T7 | 0.808 0.791 | 0.808 0.791 | 0.896 0.814 | 0.957 0.922 | 0.982 0.918 | 0.998 0.946 | 0.987 0.941 |
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Ramírez, N.; Ralló, M.; Millan, M.S. Retinal Vessel Local Tortuosity under a Macula-to-Optic Disc Central-Framing Change. Diagnostics 2023, 13, 1030. https://doi.org/10.3390/diagnostics13061030
Ramírez N, Ralló M, Millan MS. Retinal Vessel Local Tortuosity under a Macula-to-Optic Disc Central-Framing Change. Diagnostics. 2023; 13(6):1030. https://doi.org/10.3390/diagnostics13061030
Chicago/Turabian StyleRamírez, Natalia, Miquel Ralló, and Maria S. Millan. 2023. "Retinal Vessel Local Tortuosity under a Macula-to-Optic Disc Central-Framing Change" Diagnostics 13, no. 6: 1030. https://doi.org/10.3390/diagnostics13061030