Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Eur J Ophthalmol ; 21(5): 608-14, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21218392

RESUMO

PURPOSE: To determine the role of anterior segment optical coherence tomography (AS-OCT) and other anterior segment imaging techniques (Pentacam, slit-lamp optical coherence tomography [SL-OCT]) for analysis of iris melanocytic tumors and to compare results with clinical features and ultrasound biomicroscopy (UBM). METHODS: Between 2006 and 2009, 61 patients with melanocytic iris tumors were examined using different anterior segment imaging techniques: Pentacam, SL-OCT, AS-OCT, and UBM (50 MHz). Pentacam was performed in 17 patients, SL-OCT in 12, AS-OCT in 46, and UBM in 49. RESULTS: The Pentacam images identified the tumor in 3 of 17 patients (18%), SL-OCT in 8 of 12 (67%), and AS-OCT in 44 of 46 (96%). Anterior segment optical coherence tomography results were compared with UBM in 42 patients: in 86% the results were comparable, although AS-OCT visualized a ciliary body extension of iris tumors only in 1 out of 3 cases analyzed. CONCLUSIONS: Iris melanocytic tumors were located by AS-OCT in 96% of cases and results were comparable to UBM imaging, while both SL-OCT and Pentacam are less reliable for detecting and measuring anterior segment lesions. Anterior segment optical coherence tomography gives precise anterior eye segment diameters, which are useful for the brachytherapy dosage calculation module developed at the Leiden University Medical Center. Therefore, AS-OCT is a reliable, convenient, and noncontact method for detecting and measuring pure iris tumors, but UBM is superior in detecting a ciliary body extension of these tumors.


Assuntos
Segmento Anterior do Olho/patologia , Corpo Ciliar/patologia , Neoplasias da Íris/diagnóstico , Melanoma/diagnóstico , Nevo Pigmentado/diagnóstico , Tomografia de Coerência Óptica , Neoplasias Uveais/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Microscopia Acústica , Pessoa de Meia-Idade , Adulto Jovem
2.
Ophthalmology ; 110(8): 1653-66, 2003 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12917189

RESUMO

PURPOSE: To determine the value of anterior segment indocyanine green (ICG) angiography combined with anterior segment fluorescein angiography in scleral inflammation. DESIGN: Comparative observational case series. PARTICIPANTS: The study included 18 patients with various forms of scleral and episcleral disease and a single normal subject. METHODS: Anterior segment angiography using both ICG and fluorescein was performed to identify any vascular abnormalities and pathologic changes in the anterior segment. MAIN OUTCOME MEASURE: The pathologic criteria for anterior segment fluorescein angiography described by Watson and Bovey (1995) were used to compare and contrast the results of the angiograms. RESULTS: Fluorescein angiography and ICG angiography provide different and complementary information. Both dyes have different leakage patterns caused by their difference in optical and chemical properties. Areas of slow flow are more readily determined with fluorescein angiography. ICG angiography determines damage to and patency of individual vessels. CONCLUSION: Fluorescein angiography and ICG angiography detect areas of damage not clinically visible and can be useful in the differential diagnosis, the selection of appropriate medication, and monitoring and regulation of treatment in scleritis. To obtain the most information both investigations should be performed sequentially.


Assuntos
Segmento Anterior do Olho/patologia , Corantes , Angiofluoresceinografia/métodos , Verde de Indocianina , Esclerite/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Segmento Anterior do Olho/irrigação sanguínea , Feminino , Fluorofotometria , Humanos , Masculino , Pessoa de Meia-Idade , Esclerite/metabolismo
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...