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Triamcinolone-assisted vitreous imaging using B-scan ultrasonography
S Mourtzoukos1, G Mangouritsas, E Feretis
1Eye Clinic, General Hospital "Hellenic Red Cross", Athens - Greece. spyrosnmourtzoukos@yahoo.gr
European Journal of Ophthalmology
|November 7, 2008
Summary
Intravitreal triamcinolone acetonide (IVTA) injection improves B-scan ultrasonography visualization of vitreoretinal patterns in eyes with opaque media. This technique aids in planning pars plana vitrectomy (PPV) and assessing prognosis.
Area of Science:
- Ophthalmology
- Medical Imaging
- Retinal Surgery
Background:
- Opaque media in the eye presents challenges for visualizing posterior segment structures.
- Accurate assessment of vitreoretinal patterns is crucial for surgical planning and prognosis.
Observation:
- B-scan ultrasonography was used to examine three eyes with opaque media (one with pseudophakic cystoid macular edema, two with endophthalmitis) before and after intravitreal triamcinolone acetonide (IVTA) injection.
- Two eyes with endophthalmitis underwent pars plana vitrectomy (PPV) on the same day as IVTA injection.
Findings:
- Pre-injection B-scan showed relatively anechoic vitreous in all cases.
- Post-IVTA injection, visualization of the vitreous and posterior hyaloid face (PHF) improved, revealing vitreoretinal adhesions.
- Echographic findings correlated with intraoperative observations in the vitrectomized eyes.
Implications:
- Triamcinolone-assisted ultrasonography enhances imaging of the PHF in eyes with opaque media.
- This modality can be valuable for planning PPV and predicting outcomes in challenging cases.
- Careful consideration of diagnostic benefits versus IVTA risks is advised for selected applications.
